Subject: AIRS Operations Status Report For January 5, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, January 5, 2007 (the end of week 244 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
MODIS lunar calibration roll maneuver #43 and an AIRS guard test were successfully performed on Saturday, December 30. Here is the detailed timeline (UT):
364/07:11:00 AIRS put into READY mode (Lunar Cal began)
364/07:12:12 Slew began (roll amount -4.2394 degrees)
364/07:17:11 Slew completed
364/07:25:41 Return slew began
364/07:30:40 Return slew completed
364/07:35:40 Spacecraft back in fine point mode
364/07:37:00 AIRS put into OPERATE mode
364/09:04:00 AIRS Guard Test began (AIRS in CHECKOUT mode)
364/09:31:00 AIRS put into OPERATE mode (Guard Test complete)
Aqua drag make up maneuver #29 was performed on Thursday, January 4. Here is the detailed timeline (UT):
004/16:03:00 AIRS Thruster Suspend sequence started
004/16:04:07 AIRS in Ready mode, DC Restores suspended, scanner parked
004/16:05:00 Slew out in yaw began
004/16:14:10 Slew out completed (14.35 ∞ yaw angle)
004/16:20:00 Burn began (duration 18.388 seconds)
004/16:20:18 Burn completed
004/16:50:00 Slew back to nominal attitude began
004/16:59:10 Slew back completed
004/18:00:00 AIRS Thruster Resume sequence started
004/18:01:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner > uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS photometric calibration sequence has been scheduled for Monday, January 8, 2007. Here is the detailed
timeline (UT):
008/19:44:00 Photocal Lamp 3 On (S/C day)
008/19:52:00 Photocal Lamps Off (S/C day)
008/20:34:00 Photocal Lamp 3 On (S/C night)
008/20:42:00 Photocal Lamps Off (S/C night)
2) The spring 2007 Aqua orbital inclination adjustment maneuver sequence has been scheduled for the following dates:
March 14 IAM #12 (Day 073) (Wednesday)
March 28 IAM #13 (Day 087) (Wednesday)
April 11 IAM #14 (Day 101) (Wednesday)
April 24 IAM #15 (Day 114) (Tuesday)
Note the slight change in schedule since last week's report. IAM #15 has been moved one day earlier.
Subject: AIRS Operations Status Report For January 12, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, January 12, 2007 (the end of week 245 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
An AIRS photometric calibration sequence was performed on Monday, January 8, 2007. Here is the detailed timeline (UT):
008/19:44:00 Photocal Lamp 3 On (S/C day)
008/19:52:00 Photocal Lamps Off (S/C day)
008/20:34:00 Photocal Lamp 3 On (S/C night)
008/20:42:00 Photocal Lamps Off (S/C night)
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner > uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #44 and an AIRS guard test are planned for January 28. The detailed timeline
is not available at this time.
2) MODIS lunar calibration roll maneuver #45 and an AIRS guard test are planned for February 27. The detailed timeline
is not available at this time.
3) The spring 2007 Aqua orbital inclination adjustment maneuver sequence has been scheduled for the following dates:
March 14 IAM #12 (Day 073) (Wednesday)
March 28 IAM #13 (Day 087) (Wednesday)
April 11 IAM #14 (Day 101) (Wednesday)
April 24 IAM #15 (Day 114) (Tuesday)
Subject: AIRS Operations Status Report For January 19, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report
for Friday, January 19, 2007 (the end of week 246 of the Aqua
mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and
temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations. There were no
instrument activities this past week.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #44 and an AIRS guard test
are planned for January 28. The detailed timeline
has not yet been prepared.
2) MODIS lunar calibration roll maneuver #45 and an AIRS guard test
are planned for February 27. The detailed timeline
is not available at this time.
3) The spring 2007 Aqua orbital inclination adjustment maneuver
sequence has been scheduled for the following dates:
March 14 IAM #12 (Day 073) (Wednesday)
March 28 IAM #13 (Day 087) (Wednesday)
April 11 IAM #14 (Day 101) (Wednesday)
April 24 IAM #15 (Day 114) (Tuesday)
Subject: AIRS Operations Status Report For January 26, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, January 26, 2007 (the end of week 247 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations. There were no instrument activities this past week.
MODIS lunar calibration roll maneuver #44 and an AIRS guard test take place this coming Sunday. The detailed timeline is in "Upcoming events" below.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #44 and an AIRS guard test are scheduled for Sunday, January 28. Here is the
detailed timeline (UT):
028/16:28:00 AIRS put into READY mode (Lunar Cal begins)
028/16:29:42 Slew begins (roll amount -12.0430 degrees)
028/16:38:06 Slew complete
028/16:46:36 Return slew begins
028/16:55:00 Return slew completed
028/17:00:00 Spacecraft back in fine point mode
028/17:02:00 AIRS back in OPERATE mode
028/18:22:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
028/18:49:00 AIRS put into OPERATE mode (Guard Test complete)
2) MODIS lunar calibration roll maneuver #45 and an AIRS guard test are planned for February 27. The detailed timeline
is not available at this time.
3) The spring 2007 Aqua orbital inclination adjustment maneuver sequence has been scheduled for the following dates:
March 14 IAM #12 (Day 073) (Wednesday)
March 28 IAM #13 (Day 087) (Wednesday)
April 11 IAM #14 (Day 101) (Wednesday)
April 24 IAM #15 (Day 114) (Tuesday)
Subject: AIRS Operations Status Report For February 1, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, February 1, 2007 (almost the end of week 248 of the Aqua mission). Because of the new 9/80 work schedule at JPL, this status report will now be issued on Thursdays half of the time, and on Fridays the other half.
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
MODIS lunar calibration roll maneuver #44 and an AIRS guard test were successfully performed on Sunday, January 28. Here is the detailed timeline (UT):
028/16:28:00 AIRS put into READY mode (Lunar Cal begins)
028/16:29:42 Slew began (roll amount -12.0430 degrees)
028/16:38:06 Slew completed
028/16:46:36 Return slew began
028/16:55:00 Return slew completed
028/17:00:00 Spacecraft back in fine point mode
028/17:02:00 AIRS back in OPERATE mode
028/18:22:00 AIRS Guard Test began (AIRS in CHECKOUT mode)
028/18:49:00 AIRS put into OPERATE mode (Guard Test complete)
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #45 and an AIRS guard test are planned for February 27. The detailed timeline
is not available at this time.
2) The spring 2007 Aqua orbital inclination adjustment maneuver sequence has been scheduled for the following dates:
March 14 IAM #12 (Day 073) (Wednesday)
March 28 IAM #13 (Day 087) (Wednesday)
April 11 IAM #14 (Day 101) (Wednesday)
April 24 IAM #15 (Day 114) (Tuesday)
Subject: AIRS Operations Status Report For February 9, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, February 9, 2007 (the end of week 249 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
An AIRS photometric calibration sequence was run on Wednesday, February 7. Here is the detailed timeline (UT):
038/19:59:00 Photocal Lamp 3 On (S/C day)
038/20:07:00 Photocal Lamps Off (S/C day)
038/20:48:00 Photocal Lamp 3 On (S/C night)
038/20:56:00 Photocal Lamps Off (S/C night)
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #45 and an AIRS guard test are planned for February 27. The detailed timeline
is not available at this time.
2) MODIS lunar calibration roll maneuver #46 and an AIRS guard test are planned for March 29. The detailed timeline
is not available at this time.
3) The spring 2007 Aqua orbital inclination adjustment maneuver sequence has been scheduled for the following dates:
March 14 IAM #12 (Day 073) (Wednesday)
March 28 IAM #13 (Day 087) (Wednesday)
April 11 IAM #14 (Day 101) (Wednesday)
April 24 IAM #15 (Day 114) (Tuesday)
Subject: AIRS Operations Status Report For February 15, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, February 15, 2007 (almost the end of week 250 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations. There were no instrument activities this past week.
The timeline for MODIS lunar calibration roll maneuver #45 (February 27) is now available. See "Upcoming events" below. Note that these activities actually occur on the evening of Monday February 26 Pacific time.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #45 and an AIRS guard test are planned for Tuesday, February 27. Here is the
detailed timeline (UT):
058/03:31:00 AIRS put into READY mode (Lunar Cal begins)
058/03:32:55 Slew begins (roll amount -14.1269 degrees)
058/03:42:00 Slew complete
058/03:50:30 Return slew begins
058/03:59:35 Return slew completed
058/04:04:35 Spacecraft back in fine point mode
058/04:06:00 AIRS back in OPERATE mode
058/07:07:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
058/07:34:00 AIRS put into OPERATE mode (Guard Test complete)
2) MODIS lunar calibration roll maneuver #46 and an AIRS guard test are planned for March 29. The detailed timeline
is not available at this time.
3) The spring 2007 Aqua orbital inclination adjustment maneuver sequence has been scheduled for the following dates:
March 14 IAM #12 (Day 073) (Wednesday)
March 28 IAM #13 (Day 087) (Wednesday)
April 11 IAM #14 (Day 101) (Wednesday)
April 24 IAM #15 (Day 114) (Tuesday)
Subject: AIRS Operations Status Report For February 23, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, February 23, 2007 (the end of week 251 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations. There were no instrument activities this past week.
MODIS lunar calibration roll maneuver #45 will take place February 27. The detailed timeline is in "Upcoming events" below. Note that these activities actually occur on the evening of Monday February 26 Pacific time.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #45 and an AIRS guard test are planned for Tuesday, February 27. Here is the
detailed timeline (UT):
058/03:31:00 AIRS put into READY mode (Lunar Cal begins)
058/03:32:55 Slew begins (roll amount -14.1269 degrees)
058/03:42:00 Slew complete
058/03:50:30 Return slew begins
058/03:59:35 Return slew completed
058/04:04:35 Spacecraft back in fine point mode
058/04:06:00 AIRS back in OPERATE mode
058/07:07:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
058/07:34:00 AIRS put into OPERATE mode (Guard Test complete)
2) MODIS lunar calibration roll maneuver #46 and an AIRS guard test are planned for March 29. The detailed timeline
is not available at this time.
3) The spring 2007 Aqua orbital inclination adjustment maneuver sequence has been scheduled for the following dates:
March 14 IAM #12 (Day 073) (Wednesday)
March 28 IAM #13 (Day 087) (Wednesday)
April 11 IAM #14 (Day 101) (Wednesday)
April 24 IAM #15 (Day 114) (Tuesday)
Subject: AIRS Operations Status Report For March 1, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, March 1, 2007 (almost the end of week 252 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
MODIS lunar calibration roll maneuver #45 and an AIRS guard test took place February 27. Here is the detailed timeline (UT):
058/03:31:00 AIRS put into READY mode (Lunar Cal began)
058/03:32:55 Slew began (roll amount -14.1269 degrees)
058/03:42:00 Slew completed
058/03:50:30 Return slew began
058/03:59:35 Return slew completed
058/04:04:35 Spacecraft back in fine point mode
058/04:06:00 AIRS back in OPERATE mode
058/07:07:00 AIRS Guard Test began (AIRS in CHECKOUT mode)
058/07:34:00 AIRS put into OPERATE mode (Guard Test complete)
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS photometric calibration sequence will be run on Wednesday, March 7. Here is the detailed timeline (UT):
066/20:27:00 Photocal Lamp 3 On (S/C day)
066/20:35:00 Photocal Lamps Off (S/C day)
066/21:16:00 Photocal Lamp 3 On (S/C night)
066/21:24:00 Photocal Lamps Off (S/C night)
2) Inclination Adjustment Maneuver (IAM) #12 is planned for March 14 (Day 073). The detailed timeline is not
available yet.
3) MODIS lunar calibration roll maneuver #46 and an AIRS guard test are planned for March 29. The detailed timeline
is not available at this time.
4) The rest of the spring 2007 Aqua orbital inclination adjustment maneuver sequence has been scheduled for the following dates:
March 28 IAM #13 (Day 087) (Wednesday)
April 11 IAM #14 (Day 101) (Wednesday)
April 24 IAM #15 (Day 114) (Tuesday)
Subject: AIRS Operations Status Report For March 9, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, March 9, 2007 (the end of week 253 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
An AIRS photometric calibration sequence was run on Wednesday, March 7. Here is the detailed timeline (UT):
066/20:27:00 Photocal Lamp 3 On (S/C day)
066/20:35:00 Photocal Lamps Off (S/C day)
066/21:16:00 Photocal Lamp 3 On (S/C night)
066/21:24:00 Photocal Lamps Off (S/C night)
The detailed timeline for next Wednesday's Aqua orbital inclination adjustment maneuver (IAM #12) is in "Upcoming events" below. MODIS lunar calibration roll maneuver #46 had been canceled but has now been restored, and will take place on March 29 as originally planned.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) Inclination Adjustment Maneuver (IAM) #12 is planned for Wednesday, March 14 (Day 073). Here is the detailed
timeline (UT):
073/16:12:00 AIRS Thruster Suspend sequence started
073/16:13:07 AIRS in Ready mode, DC Restores suspended, scanner parked
073/16:14:00 Slew out in yaw begins (yaw angle -83.30 degrees)
073/16:23:55 Slew out complete
073/16:23:55 Burn begins (duration 9 minutes, 10 seconds)
073/16:33:05 Burn ends
073/16:33:36 Slew back starts
073/16:45:21 Slew back complete
073/16:45:21 Spacecraft back in fine point mode
073/18:13:00 AIRS Thruster Resume sequence started
073/18:14:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
2) MODIS lunar calibration roll maneuver #46 and an AIRS guard test are planned for March 29. The detailed timeline
is not available at this time.
3) The rest of the spring 2007 Aqua orbital inclination adjustment maneuver sequence has been scheduled for the following dates:
March 28 IAM #13 (Day 087) (Wednesday)
April 11 IAM #14 (Day 101) (Wednesday)
April 24 IAM #15 (Day 114) (Tuesday)
Subject: AIRS Operations Status Report For March 15, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, March 15, 2007 (almost the end of week 254 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
Aqua orbital inclination adjustment maneuver #12 was successfully performed on March 14. Here is the detailed timeline (UT):
073/16:12:00 AIRS Thruster Suspend sequence started
073/16:13:07 AIRS in Ready mode, DC Restores suspended, scanner parked
073/16:14:00 Slew out in yaw began (yaw angle -83.30 degrees)
073/16:23:55 Slew out completed
073/16:23:55 Burn began (duration 9 minutes, 10 seconds)
073/16:33:05 Burn ended
073/16:33:36 Slew back started
073/16:45:21 Slew back completed
073/16:45:21 Spacecraft back in fine point mode
073/18:13:00 AIRS Thruster Resume sequence started
073/18:14:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) IAM #13 is scheduled for Wednesday, March 28. The detailed timeline is not available yet.
2) MODIS lunar calibration roll maneuver #46 and an AIRS guard test are planned for March 29. The detailed timeline
is not available at this time.
3) The rest of the spring 2007 Aqua orbital inclination adjustment maneuver sequence has been scheduled for the following dates:
April 11 IAM #14 (Day 101) (Wednesday)
April 24 IAM #15 (Day 114) (Tuesday)
Subject: AIRS Operations Status Report For March 23, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, March 23, 2007 (the end of week 255 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations. There were no instrument activities this past week.
The next two weeks will be busy, with an orbital inclination adjustment maneuver, a MODIS lunar calibration roll maneuver, and an AIRS photometric calibration sequence. See "Upcoming events" below.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) IAM #13 is scheduled for Wednesday, March 28. Here is the detailed timeline (UT):
087/16:25:00 AIRS Thruster Suspend sequence started
087/16:26:20 AIRS in Ready mode, DC Restores suspended, scanner parked
087/16:27:57 Slew out in yaw begins (yaw angle -82.80 degrees)
087/16:37:52 Slew out complete
087/16:37:52 Burn begins (duration 9 minutes, 10 seconds)
087/16:47:02 Burn ends
087/16:47:33 Slew back starts
087/16:59:18 Slew back complete
087/16:59:18 Spacecraft back in fine point mode
087/18:40:00 AIRS Thruster Resume sequence started
087/18:41:53 Scanner scanning, DC Restores resumed, AIRS in Operate mode
2) MODIS lunar calibration roll maneuver #46 and an AIRS guard test are planned for March 29. Here is the
detailed timeline (UT):
088/17:05:00 AIRS put into READY mode (Lunar Cal begins)
088/17:06:05 Slew begins (roll amount -18.1528 degrees)
088/17:16:23 Slew complete
088/17:24:53 Return slew begins
088/17:35:11 Return slew completed
088/17:40:11 Spacecraft back in fine point mode
088/17:42:00 AIRS back in OPERATE mode
088/18:54:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
088/19:21:00 AIRS put into OPERATE mode (Guard Test complete)
3) An AIRS photometric calibration sequence has been scheduled for Friday, April 6. Here is the
detailed timeline (UT):
096/19:04:00 Photocal Lamp 3 On (S/C day)
096/19:12:00 Photocal Lamps Off (S/C day)
096/19:54:00 Photocal Lamp 3 On (S/C night)
096/20:02:00 Photocal Lamps Off (S/C night)
4) The rest of the spring 2007 Aqua orbital inclination adjustment maneuver sequence has been scheduled for the following dates:
April 11 IAM #14 (Day 101) (Wednesday)
April 24 IAM #15 (Day 114) (Tuesday)
Subject: Fwd: Special AIRS Operations Status Report for March 27, 2007
This is a special edition of the AIRS, AMSU-A, and HSB operations
status report for Tuesday, March 27, 2007.
Orbit Inclination Maneuver # 13, originally scheduled for Wednesday,
March 28 (2007/087) has been cancelled. Execution of AIRS Stored
Command Sequences #130 and #131 will be inhibited. As a result no
commands will be issued to the AIRS instrument.
MODIS Lunar Calibration Maneuver #46, originally scheduled for
Thursday, March 29 (2007/088) has been cancelled. The commands that
temporarily place AIRS in "Ready" mode during the MODIS calibration
activities have been deleted. However the monthly Guard Test,
normally done in conjunction with the MODIS activity, remains
scheduled and will take place. (See "Upcoming Events", below.)
Otherwise AIRS and AMSU-A remain healthy, with all voltages,
currents, and temperatures as expected (AMSU-A2 temperature readouts
remain noisy).
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS guard test is planned for March 29. Here is the
detailed timeline (UT):
088/18:54:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
088/19:21:00 AIRS put into OPERATE mode (Guard Test complete)
2) An AIRS photometric calibration sequence has been scheduled for
Friday, April 6. Here is the detailed timeline (UT):
096/19:04:00 Photocal Lamp 3 On (S/C day)
096/19:12:00 Photocal Lamps Off (S/C day)
096/19:54:00 Photocal Lamp 3 On (S/C night)
096/20:02:00 Photocal Lamps Off (S/C night)
3) The rest of the spring 2007 Aqua orbital inclination adjustment
maneuver sequence remains scheduled for the following dates:
April 11 IAM #14 (Day 101) (Wednesday)
April 24 IAM #15 (Day 114) (Tuesday)
Subject: AIRS Operations Status Report For March 30, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, March 30, 2007 (the end of week 256 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
Due to a software problem in the ground system, the Aqua Orbital Inclination Adjustment Maneuver (IAM) #13, originally scheduled for this past Wednesday, was canceled. AIRS data taking was not interrupted.
The same software problem forced the cancellation of MODIS Lunar Calibration Roll maneuver #46 on Thursday, March 29. However, the AIRS guard test for that day was not canceled. Here is the detailed timeline (UT):
088/18:54:00 AIRS Guard Test began (AIRS in CHECKOUT mode)
088/19:21:00 AIRS back in OPERATE mode (Guard Test complete)
The IAM's have been rescheduled. See "Upcoming events" for the new dates. Since the lunar calibration maneuver must be done during a specific phase of the moon, it cannot be rescheduled. The next lunar calibration will take place in late April.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS photometric calibration sequence has been scheduled for Friday, April 6. Here is the
detailed timeline (UT):
096/19:04:00 Photocal Lamp 3 On (S/C day)
096/19:12:00 Photocal Lamps Off (S/C day)
096/19:54:00 Photocal Lamp 3 On (S/C night)
096/20:02:00 Photocal Lamps Off (S/C night)
2) The rest of the spring 2007 Aqua orbital inclination adjustment maneuver sequence has been rescheduled for the following dates:
April 11 IAM #13 (Day 101) (Wednesday)
April 24 IAM #14 (Day 114) (Tuesday)
May 8 IAM #15 (Day 128) (Tuesday)
Subject: AIRS Operations Status Report For April 5, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, April 5, 2007 (almost the end of week 257 of the Aqua mission). This report is being issued one day early because I am taking Friday April 6 off.
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations. There were no instrument activities this past week.
The detailed timeline for next Wednesday's inclination adjustment maneuver is not yet available. An interim report will be issued when the timeline is ready.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS photometric calibration sequence has been scheduled for Friday, April 6. Here is the
detailed timeline (UT):
096/19:04:00 Photocal Lamp 3 On (S/C day)
096/19:12:00 Photocal Lamps Off (S/C day)
096/19:54:00 Photocal Lamp 3 On (S/C night)
096/20:02:00 Photocal Lamps Off (S/C night)
2) The rest of the spring 2007 Aqua orbital inclination adjustment maneuver sequence has been rescheduled for the following dates:
April 11 IAM #13 (Day 101) (Wednesday)
April 24 IAM #14 (Day 114) (Tuesday)
May 8 IAM #15 (Day 128) (Tuesday)
Subject: AIRS Operations Status Report (Timeline Update) For April 9, 2007
This is an AIRS, AMSU-A, and HSB weekly operations status report update for Monday, April 9, 2007 (during week 258 of the Aqua mission). The primary purpose of this report is to provide the detailed timeline for Wednesday's Aqua orbital inclination adjustment maneuver #13. See "Upcoming events" below.
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
On Friday, April 6, there was an AIRS photometric calibration sequence. Here is the detailed timeline (UT):
096/19:04:00 Photocal Lamp 3 On (S/C day)
096/19:12:00 Photocal Lamps Off (S/C day)
096/19:54:00 Photocal Lamp 3 On (S/C night)
096/20:02:00 Photocal Lamps Off (S/C night)
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) Here is the detailed timeline for Aqua IAM #13 , scheduled for Wednesday, April 11. All times are UT.
101/15:00:54 AIRS Thruster Suspend sequence started
101/15:02:01 AIRS in Ready mode, DC Restores suspended, scanner parked
101/15:02:54 Slew out in yaw begins (yaw angle -83.30 degrees)
101/15:12:49 Slew out complete
101/15:12:49 Burn begins (duration 9 minutes, 10 seconds)
101/15:21:59 Burn ends
101/15:22:30 Slew back starts
101/15:34:15 Slew back complete
101/15:34:15 Spacecraft back in fine point mode
101/17:14:00 AIRS Thruster Resume sequence started
101/17:15:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
2) The rest of the spring 2007 Aqua orbital inclination adjustment maneuver sequence is scheduled for the following dates:
April 24 IAM #14 (Day 114) (Tuesday)
May 8 IAM #15 (Day 128) (Tuesday)
Subject: AIRS Operations Status Report For April 12, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, April 12, 2007 (almost the end of week 258 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
Aqua orbital inclination adjustment maneuver #13 was successfully performed on Wednesday, April 11. Here is the detailed timeline (UT):
101/15:00:54 AIRS Thruster Suspend sequence started
101/15:02:01 AIRS in Ready mode, DC Restores suspended, scanner parked
101/15:02:54 Slew out in yaw began (yaw angle -82.10 degrees)
101/15:12:49 Slew out completed
101/15:12:49 Burn began (duration 9 minutes, 10 seconds)
101/15:21:59 Burn ended
101/15:22:30 Slew back started
101/15:34:15 Slew back completed
101/15:34:15 Spacecraft back in fine point mode
101/17:14:00 AIRS Thruster Resume sequence started
101/17:15:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) Aqua IAM #14 is scheduled for Tuesday, April 24. The detailed timeline is not yet available.
2) MODIS lunar calibration roll maneuver #46 and an associated AIRS guard test are planned for Saturday, April 28.
The detailed timeline is not yet available.
3) Aqua IAM #15 is scheduled for Tuesday, May 8. No detailed timeline is available at this time.
Subject: AIRS Operations Status Report For April 20, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, April 20, 2007 (the end of week 259 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations. There were no instrument activities this past week.
Aqua orbital inclination adjustment maneuver #14 has been delayed by one day, and will now take place on Wednesday, April 25. The detailed timeline is in "Upcoming events" below.
MODIS lunar calibration roll maneuver #47, and an AIRS guard test, have been scheduled for Friday, April 27. This is one day earlier than was indicated in last week's report. The detailed timeline is also in "Upcoming events" below.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) Aqua IAM #14 is scheduled for Wednesday, April 25. Here is the detailed timeline (UT):
115/15:14:00 AIRS Thruster Suspend sequence starts
115/15:15:07 AIRS in Ready mode, DC Restores suspended, scanner parked
115/15:16:38 Slew out in yaw begins (yaw angle -82.60 degrees)
115/15:26:33 Slew out complete
115/15:26:33 Burn begins (duration 9 minutes, 10 seconds)
115/15:35:43 Burn ends
115/15:36:14 Slew back starts
115/15:47:59 Slew back complete
115/15:47:59 Spacecraft back in fine point mode
115/17:28:00 AIRS Thruster Resume sequence starts
115/17:29:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
2) MODIS lunar calibration roll maneuver #47 and an associated AIRS guard test are scheduled for Friday, April 27.
Here is the detailed timeline (UT):
117/08:01:00 AIRS Guard Test begins (AIRS in CHECKOUT mode) (duration about 27 minutes)
117/08:30:30 AIRS put into READY mode (Lunar Cal begins)
117/08:30:46 Slew begins (roll amount -4.8556 degrees)
117/08:36:06 Slew complete
117/08:44:36 Return slew begins
117/08:49:56 Return slew complete
117/08:54:56 Spacecraft back in fine point mode
117/08:57:00 AIRS back in OPERATE mode
3) Aqua IAM #15 is scheduled for Tuesday, May 8. No detailed timeline is available at this time.
Subject: AIRS Operations Status Report For April 26, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, April 26, 2007 (almost the end of week 260 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
Aqua orbital inclination adjustment maneuver (IAM) #14 was successfully performed on Wednesday, April 25. Here is the detailed timeline (UT):
115/15:14:00 AIRS Thruster Suspend sequence started
115/15:15:07 AIRS in Ready mode, DC Restores suspended, scanner parked
115/15:16:38 Slew out in yaw began (yaw angle -82.60 degrees)
115/15:26:33 Slew out completed
115/15:26:33 Burn began (duration 9 minutes, 10 seconds)
115/15:35:43 Burn ended
115/15:36:14 Slew back started
115/15:47:59 Slew back completed
115/15:47:59 Spacecraft back in fine point mode
115/17:28:00 AIRS Thruster Resume sequence started
115/17:29:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
MODIS lunar calibration roll maneuver #47, and an AIRS guard test, have been scheduled for Friday, April 27. The detailed timeline is in "Upcoming events" below.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #47 and an associated AIRS guard test are scheduled for Friday, April 27.
Here is the detailed timeline (UT):
117/08:01:00 AIRS Guard Test begins (AIRS in CHECKOUT mode) (duration about 27 minutes)
117/08:30:30 AIRS put into READY mode (Lunar Cal begins)
117/08:30:46 Slew begins (roll amount -4.8556 degrees)
117/08:36:06 Slew complete
117/08:44:36 Return slew begins
117/08:49:56 Return slew complete
117/08:54:56 Spacecraft back in fine point mode
117/08:57:00 AIRS back in OPERATE mode
2) Aqua IAM #15 is scheduled for Tuesday, May 8. No detailed timeline is available at this time.
Subject: AIRS Operations Status Report For May 4, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, May 4, 2007 (the end of week 261 of the Aqua mission).
Happy Anniversary and congratulations to all the Aqua teams---spacecraft and instrument development, science, data processing, and operations! The Aqua spacecraft, with AIRS, AMSU-A, and HSB on board, was launched exactly five years ago today.
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
MODIS lunar calibration roll maneuver #46 (or maybe #47) and an associated AIRS guard test were successfully performed Friday, April 27. I am uncertain how to number the lunar calibration rolls because of the cancellation of the March 29 maneuver. Two different numbering systems now seem to be in use. Here is last Friday's detailed timeline (UT):
117/08:01:00 AIRS Guard Test began (AIRS in CHECKOUT mode) (duration about 27 minutes)
117/08:30:30 AIRS put into READY mode (Lunar Cal began)
117/08:30:46 Slew began (roll amount -4.8556 degrees)
117/08:36:06 Slew completed
117/08:44:36 Return slew began
117/08:49:56 Return slew completed
117/08:54:56 Spacecraft back in fine point mode
117/08:57:00 AIRS back in OPERATE mode
The last in the 2007 series of Aqua orbital inclination adjustment maneuvers is scheduled for this coming Tuesday, May 8. See "Upcoming events" below.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS photometric calibration sequence is scheduled for Monday, May 7. Here is the detailed timeline (UT):
127/20:03:00 Photocal Lamp 3 On (S/C day)
127/20:11:00 Photocal Lamps Off (S/C day)
127/20:52:00 Photocal Lamp 3 On (S/C night)
127/21:00:00 Photocal Lamps Off (S/C night)
2) Aqua IAM #15 is scheduled for Tuesday, May 8. Here is the detailed timeline (UT):
128/16:23:00 AIRS Thruster Suspend sequence starts
128/16:24:07 AIRS in Ready mode, DC Restores suspended, scanner parked
128/16:25:44 Slew out in yaw begins (yaw angle TBD)
128/16:35:39 Slew out complete
128/16:35:39 Burn begins (duration 9 minutes, 10 seconds)
128/16:44:49 Burn ends
128/16:45:20 Slew back starts
128/16:57:05 Slew back complete
128/16:57:05 Spacecraft back in fine point mode
128/18:37:00 AIRS Thruster Resume sequence starts
128/18:38:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
Subject: AIRS Operations Status Report For May 10, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, May 10, 2007 (almost the end of week 262 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
Aqua orbital inclination adjustment maneuver #15 was successfully performed on Tuesday, May 8. This was the last IAM planned for this year. Here is the detailed timeline (UT):
128/16:23:00 AIRS Thruster Suspend sequence started
128/16:24:07 AIRS in Ready mode, DC Restores suspended, scanner parked
128/16:25:44 Slew out in yaw began (yaw angle TBD)
128/16:35:39 Slew out completed
128/16:35:39 Burn began (duration 9 minutes, 10 seconds)
128/16:44:49 Burn ended
128/16:45:20 Slew back started
128/16:57:05 Slew back completed
128/16:57:05 Spacecraft back in fine point mode
128/18:37:00 AIRS Thruster Resume sequence started
128/18:38:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
An AIRS photometric calibration sequence was run on Monday, May 7. Here is the detailed timeline (UT):
127/20:03:00 Photocal Lamp 3 On (S/C day)
127/20:11:00 Photocal Lamps Off (S/C day)
127/20:52:00 Photocal Lamp 3 On (S/C night)
127/21:00:00 Photocal Lamps Off (S/C night)
Based on our experiences in 2005 and 2006, we would not have been surprised if another episode of high current excursions near the south pole began in late March or April on the AMSU-A1-2 noisy bus. A small amount of such activity did take place in late April. But the current increases were quite small, and the whole episode seems to have lasted only for two or three days, instead of several months as in prior years. Of course, we will continue to monitor the situation carefully.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
None scheduled at this time.
Subject: AIRS Operations Status Report For May 18, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report
for Friday, May 18, 2007 (the end of week 263 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and
temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations. There were no
instrument activities this past week.
In last week's report it was stated that AMSU-A1-2 noisy bus current
increases during the south polar winter had started late this year.
It was also noted that the spiking only lasted three days, then
disappeared. After a one week delay, the noisy bus current "spiking"
has reappeared. The amplitude of the increase is still very small. In
general, this year's event not only started late but, so far, appears
to be much weaker than the 2005 and 2006 events. We will continue to
monitor this behavior.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #47 is planned for
Saturday, May 27. The roll amount will be -9 degrees.
The detailed timeline is not available at this time. As usual,
there will be an AIRS guard test run in conjunction
with this activity.
Subject: AIRS Operations Status Report For May 24, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, May 24, 2007 (almost the end of week 264 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations. There were no instrument activities this past week.
This year's AMSU-A1-2 noisy bus current spiking event continues. So far, amplitudes have reached about one-third that of the largest seen in previous years.
The detailed timeline for MODIS lunar calibration roll maneuver #47 can be found in "Upcoming events" below.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #47 is planned for Sunday, May 27. The roll amount will be -9 degrees.
As usual, there will be an AIRS guard test run in conjunction with this activity. Here is the detailed timeline (UT):
147/02:18:00 AIRS put into READY mode (Lunar Cal begins)
147/02:19:35 Slew begins (roll amount -8.9926 degrees)
147/02:26:50 Slew complete
147/02:35:20 Return slew begins
147/02:42:35 Return slew complete
147/02:47:35 Spacecraft back in fine point mode
147/02:49:00 AIRS back in OPERATE mode
147/07:01:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
147/07:28:00 AIRS back in OPERATE mode
Note that the roll maneuver takes place Saturday evening Pacific time. The AIRS guard test occurs shortly
after midnight on Sunday.
Subject: AIRS Operations Status Report For June 1, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, June 1, 2007 (the end of week 265 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
MODIS lunar calibration roll maneuver #47, and an AIRS guard test, were successfully performed on Sunday, May 27. Here is the detailed timeline (UT):
147/02:18:00 AIRS put into READY mode (Lunar Cal began)
147/02:19:35 Slew began (roll amount -8.9926 degrees)
147/02:26:50 Slew completed
147/02:35:20 Return slew began
147/02:42:35 Return slew completed
147/02:47:35 Spacecraft back in fine point mode
147/02:49:00 AIRS back in OPERATE mode
147/07:01:00 AIRS Guard Test began (AIRS in CHECKOUT mode)
147/07:28:00 AIRS back in OPERATE mode
This year's AMSU-A1-2 noisy bus current spiking event continues but remains weak. So far, the increases in current are less frequent than in previous years. Their amplitudes, when they do occur, have not yet exceeded one-third that of the largest increase seen in 2005 or 2006.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS photometric calibration sequence will take place on Thursday, June 7. In most months we use only lamp #3,
our primary lamp. But in June we use two lamps (#3 and #1) and in December we exercise all three lamps.
This enables us to transfer the calibration of the Vis/NIR channels to a different lamp if lamp #3 should ever
have problems. Here is the detailed timeline (UT):
158/19:21:00 Photocal Lamp 1 On (S/C day)
158/19:29:00 Photocal Lamps Off (S/C day)
158/20:10:00 Photocal Lamp 1 On (S/C night)
158/20:18:00 Photocal Lamps Off (S/C night)
158/21:00:00 Photocal Lamp 3 On (S/C day)
158/21:08:00 Photocal Lamps Off (S/C day)
158/21:49:00 Photocal Lamp 3 On (S/C night)
158/21:57:00 Photocal Lamps Off (S/C night)
Subject: AIRS Operations Status Report For June 7, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, June 7, 2007 (almost the end of week 266 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
Due to some ground network problems, 16 minutes of AIRS and MODIS data were lost on June 2 (day of year 153). The following range of UT times was lost for AIRS:
02:25:00 to 02:41:26
An AIRS photometric calibration sequence was run today. Here is the detailed timeline (UT):
158/19:21:00 Photocal Lamp 1 On (S/C day)
158/19:29:00 Photocal Lamps Off (S/C day)
158/20:10:00 Photocal Lamp 1 On (S/C night)
158/20:18:00 Photocal Lamps Off (S/C night)
158/21:00:00 Photocal Lamp 3 On (S/C day)
158/21:08:00 Photocal Lamps Off (S/C day)
158/21:49:00 Photocal Lamp 3 On (S/C night)
158/21:57:00 Photocal Lamps Off (S/C night)
This year's AMSU-A1-2 noisy bus current spiking event continues. Amplitudes of current increases are getting larger, but sporadically, not steadily. The largest current increase seen so far in this episode had about half the amplitude of the largest excursion seen in previous years.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
None scheduled at this time.
Subject: AIRS Operations Status Report For June 15, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, June 15, 2007 (the end of week 267 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations. There were no instrument activities this past week.
This year's AMSU-A1-2 noisy bus current spiking event continues. Activity peaked (at least for now) on June 6 with the largest amplitude being slightly over 50% of the biggest excursion ever seen (in 2005). This year's episode has been more sporadic than previous years, and the recent decrease in peak current may turn out to be temporary. We will continue to monitor the situation.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #48 and an AIRS guard test have been scheduled for Monday, June 25. Here is the
detailed timeline (UT):
176/18:18:00 AIRS put into READY mode (Lunar Cal begins)
176/18:19:56 Slew begins (roll amount -18.5833 degrees)
176/18:30:21 Slew complete
176/18:31:51 Return slew begins
176/18:49:16 Return slew complete
176/18:54:16 Spacecraft back in fine point mode
176/18:56:00 AIRS back in OPERATE mode
176/19:42:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
176/20:09:00 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report For June 21, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, June 21, 2007 (almost the end of week 268 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations. There were no instrument activities this past week.
MODIS lunar calibration roll maneuver #48, and an AIRS guard test, are scheduled for this coming Monday, June 25. See "Upcoming events" below.
This year's AMSU-A1-2 noisy bus current spiking event continues with no significant change from last week's report. The maximum amplitude seen so far this year took place on June 6. Its peak was slightly over 50% of the biggest excursion ever seen (in 2005). We will continue to monitor the situation.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #48 and an AIRS guard test have been scheduled for Monday, June 25. Here is the
detailed timeline (UT):
176/18:18:00 AIRS put into READY mode (Lunar Cal begins)
176/18:19:56 Slew begins (roll amount -18.5833 degrees)
176/18:30:21 Slew complete
176/18:31:51 Return slew begins
176/18:49:16 Return slew complete
176/18:54:16 Spacecraft back in fine point mode
176/18:56:00 AIRS back in OPERATE mode
176/19:42:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
176/20:09:00 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report For June 29, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, June 29, 2007 (the end of week 269 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations.
MODIS lunar calibration roll maneuver #48, and an AIRS guard test, were successfully performed on Monday, June 25. Here is the detailed timeline(UT):
176/18:18:00 AIRS put into READY mode (Lunar Cal began)
176/18:19:56 Slew began (roll amount -18.5833 degrees)
176/18:30:21 Slew completed
176/18:31:51 Return slew began
176/18:49:16 Return slew completed
176/18:54:16 Spacecraft back in fine point mode
176/18:56:00 AIRS back in OPERATE mode
176/19:42:00 AIRS Guard Test began (AIRS in CHECKOUT mode)
176/20:09:00 AIRS back in OPERATE mode
This year's AMSU-A1-2 noisy bus current spiking event continues with no significant change from last week's report. The maximum amplitude seen so far this year took place on June 6. Its peak was slightly over 50% of the biggest excursion ever seen (in 2005). We will continue to monitor the situation.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
Nothing scheduled at this time..
Subject: AIRS Operations Status Report For July 3, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Tuesday, July 3, 2007 (the middle of week 270 of the Aqua mission). This report is being issued early because I will be out the rest of this week.
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations. There were no instrument activities this past week.
An AIRS photometric calibration sequence will be performed on Monday, July 9. See "Upcoming events" below.
This year's AMSU-A1-2 noisy bus current spiking event appears to be dying down. However, it is still too early to tell for sure. Hopefully, next week's report will be more definitive.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS photometric calibration sequence will be performed on Monday, July 9. Here is the detailed timeline (UT):
190/19:20:00 Photocal Lamp 3 On (S/C day)
190/19:28:00 Photocal Lamps Off (S/C day)
190/20:09:00 Photocal Lamp 3 On (S/C night)
190/20:17:00 Photocal Lamps Off (S/C night)
Subject: AIRS Operations Status Report (interim) For July 10, 2007---Upcoming DMU Burn
This is the AIRS, AMSU-A, and HSB weekly operations status report for Tuesday, July 10, 2007 (the middle of week 271 of the Aqua mission). The purpose of this report is to provide the detailed timeline for a drag make up burn scheduled for this coming Thursday, July 12. The timeline for this maneuver was announced over the Fourth of July holiday period, after last week's status report was issued. See "Upcoming events" below.
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both AIRS and AMSU-A continue in routine operations. An AIRS photometric calibration sequence was performed on Monday, July 9. Here is the detailed timeline (UT):
190/19:20:00 Photocal Lamp 3 On (S/C day)
190/19:28:00 Photocal Lamps Off (S/C day)
190/20:09:00 Photocal Lamp 3 On (S/C night)
190/20:17:00 Photocal Lamps Off (S/C night)
Some AMSU-A1-2 noisy bus current spiking continues, but the amplitudes are quite low. This year's event appears to have reached its peak over a month ago, on June 6. The maximum amplitude reached on that date was only about half of the maxima in 2005 and 2006.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) Aqua drag make up maneuver #30 is scheduled for Thursday, July 12. Here is the detailed timeline (UT):
193/13:53:00 AIRS Thruster Suspend sequence started
193/13:54:07 AIRS in Ready mode, DC Restores suspended, scanner parked
193/13:55:00 Slew out in yaw begins
193/14:04:10 Slew out complete (14.35 ∞ yaw angle)
193/14:35:21 Burn begins (duration 15.015 seconds)
193/14:35:36 Burn complete
193/14:45:00 Slew back to nominal attitude begins
193/14:54:10 Slew back complete
193/16:35:00 AIRS Thruster Resume sequence started
193/16:36:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
Subject: AIRS Operations Status Report For July 10, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, July 13 (YIKES!) (the end of week 271 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Aqua drag make up maneuver #30 was successfully performed on Thursday, July 12. Here is the detailed timeline (UT):
193/13:53:00 AIRS Thruster Suspend sequence started
193/13:54:07 AIRS in Ready mode, DC Restores suspended, scanner parked
193/13:55:00 Slew out in yaw began
193/14:04:10 Slew out completed (14.35 ∞ yaw angle)
193/14:35:21 Burn began (duration 15.015 seconds)
193/14:35:36 Burn completed
193/14:45:00 Slew back to nominal attitude began
193/14:54:10 Slew back completed
193/16:35:00 AIRS Thruster Resume sequence started
193/16:36:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
Some AMSU-A1-2 noisy bus current spiking continues, but the amplitudes are quite low. This year's event appears to have reached its peak over a month ago, on June 6. The maximum amplitude reached on that date was only about half of the maxima in 2005 and 2006.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A > uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) AIRS guard tests in late July and late August. Details TBD.
2) MODIS lunar calibration roll maneuver #49 is planned for September 30, 2007. There will be no
lunar calibrations in July or August because the required roll amounts exceed spacecraft
mission constraints.
Subject: AIRS Operations Status Report For July 19, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report
for Thursday, July 19 (almost the end of week 272 of the Aqua
mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and
temperatures as expected (AMSU-A2 temperature readouts remain noisy).
There were no instrument activities this past week.
There has been essentially no change in the AMSU-A1-2 noisy bus
current spiking since last week's report. The amplitudes remain quite
low and continue to decrease slowly.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) AIRS guard tests in late July and late August. Details TBD.
2) MODIS lunar calibration roll maneuver #49 is planned for
September 30, 2007. There will be no
lunar calibrations in July or August because the required roll
amounts exceed spacecraft
mission constraints.
Subject: AIRS Operations Status Report For July 27, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, July 27 (the end of week 273 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
There were no instrument activities this past week.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS guard test has been scheduled for Monday, July 30. Here is the detailed timeline (UT):
211/20:12:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
211/20:39:00 AIRS put into OPERATE mode (Guard Test complete)
2) Another AIRS guard test will be performed in late August. The detailed timeline is not yet available.
3) MODIS lunar calibration roll maneuver #49 is planned for September 30, 2007. There will be no
lunar calibrations in July or August because the required roll amounts exceed spacecraft
mission constraints.
Subject: AIRS Operations Status Report For August 2, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, August 2 (the end of week 274 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
An AIRS guard test was performed on Monday, July 30. Here is the detailed timeline (UT):
211/20:12:00 AIRS Guard Test began (AIRS in CHECKOUT mode)
211/20:39:00 AIRS put into OPERATE mode (Guard Test complete)
The AMSU-A1-2 noisy bus spiking event continues. After appearing to almost die out in early July, current increases near the south pole reappeared and a new maximum occurred on July 22. The peak was slightly higher than the one seen on June 2. But it was still only about half the maximum amplitudes seen in 2005 and 2006.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS photometric calibration sequence has been scheduled for Tuesday, August 7. Here is the detailed timeline (UT):
219/20:26:00 Photocal Lamp 3 On (S/C day)
219/20:34:00 Photocal Lamps Off (S/C day)
219/21:16:00 Photocal Lamp 3 On (S/C night)
219/21:24:00 Photocal Lamps Off (S/C night)
2) An AIRS guard test will be performed in late August. The detailed timeline is not yet available.
3) MODIS lunar calibration roll maneuver #49 is planned for September 30, 2007. There will be no
lunar calibrations in July or August because the required roll amounts exceed spacecraft
mission constraints.
Subject: AIRS Operations Status Report For August 10, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, August 10 (the end of week 274 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
An AIRS photometric calibration sequence was performed on Tuesday, August 7. Here is the detailed timeline (UT):
219/20:26:00 Photocal Lamp 3 On (S/C day)
219/20:34:00 Photocal Lamps Off (S/C day)
219/21:16:00 Photocal Lamp 3 On (S/C night)
219/21:24:00 Photocal Lamps Off (S/C night)
The AMSU-A1-2 noisy bus spiking activity which peaked on July 22 has now ceased. This year's event may be over. We continue to monitor the current daily.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS guard test will be performed in late August. The detailed timeline is not yet available.
2) Aqua drag make up maneuver #31 is scheduled for Monday, September 24.
3) MODIS lunar calibration roll maneuver #49 is planned for September 30, 2007. There will be no
lunar calibrations in July or August because the required roll amounts exceed spacecraft
mission constraints.
Subject: AIRS Operations Status Report For August 15, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report
for Wednesday, August 15 (during week 275 of the Aqua mission). This
report is being issued one day early this week, because I will be out
of the office tomorrow.
AIRS and AMSU-A remain healthy, with all voltages, currents, and
temperatures as expected (AMSU-A2 temperature readouts remain noisy).
There were no instrument activities this past week. Both instruments
continue in routine operations.
The AMSU-A1-2 noisy bus spiking activity has been quiet for over a
week. This year's event may be over. We continue to monitor the
current daily, because the events in 2005 and 2006 persisted well
into September.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS guard test will be performed in late August. The detailed
timeline is not yet available.
2) Aqua drag make up maneuver #31 is scheduled for Monday, September 24.
3) MODIS lunar calibration roll maneuver #49 is planned for
September 30, 2007. There will be no
lunar calibration in August because the required roll amount
exceeds spacecraft
mission constraints.
Subject: AIRS Operations Status Report For August 24, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, August 24 (the end of week 276 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy).
There were no instrument activities this past week. Both instruments continue in routine operations.
The AMSU-A1-2 noisy bus spiking event for this year appears to be over. It will not be mentioned again in this report until another event begins.
An AIRS guard test has been scheduled for next week. See "Upcoming events" below.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS guard test will be performed on Thursday, August 30. Here is the detailed timeline (UT):
242/21:08:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
242/21:35:00 AIRS put into OPERATE mode (Guard Test complete)
2) Aqua drag make up maneuver #31 is scheduled for Monday, September 24.
3) MODIS lunar calibration roll maneuver #49 is planned for September 30, 2007. There will be no
lunar calibration in August because the required roll amount exceeds spacecraft
mission constraints.
Subject: AIRS Operations Status Report For August 30, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, August 30 (almost the end of week 277 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected.
An AIRS guard test was performed earlier today. It was not accompanied by the usual MODIS lunar calibration maneuver because the required roll amount would have exceeded spacecraft constraints.
Here is the detailed timeline (UT):
242/21:08:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
242/21:35:00 AIRS put into OPERATE mode (Guard Test complete)
An AIRS photometric calibration sequence has been scheduled for Friday, next week. See "Upcoming events" below.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS photometric calibration sequence has been scheduled for Friday, September 7.
Here is the detailed timeline (UT):
VIS Calibration - September 7, 2007
250/21:19:00 Photocal Lamp 3 On (S/C day)
250/21:27:00 Photocal Lamps Off (S/C day)
250/22:09:00 Photocal Lamp 3 On (S/C night)
250/22:17:00 Photocal Lamps Off (S/C night)
2) Aqua drag make up maneuver #31 is scheduled for Monday, September 24.
3) MODIS lunar calibration roll maneuver #49 is planned for September 30, 2007.
Subject: AIRS Operations Status Report For September 7, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, September 7 (the end of week 278 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy). Both instruments continue in routine operations.
An AIRS photometric calibration sequence was run today. Here is the detailed timeline (UT):
250/21:19:00 Photocal Lamp 3 On (S/C day)
250/21:27:00 Photocal Lamps Off (S/C day)
250/22:09:00 Photocal Lamp 3 On (S/C night)
250/22:17:00 Photocal Lamps Off (S/C night)
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) Aqua drag make up maneuver #31 is scheduled for Monday, September 24.
2) MODIS lunar calibration roll maneuver #49 is planned for September 30, 2007.
Subject: AIRS Operations Status Report for September 13, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report
for Thursday, September 13 (almost the end of week 279 of the Aqua
mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and
temperatures as expected.
There were no instrument activities this past week. Both
instruments continue in routine operations.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) Aqua drag make up maneuver #31 is scheduled for Monday, September 24.
2) MODIS lunar calibration roll maneuver #49 is planned for September 30.
3) A photometric calibration is planned for October 8.
Subject: AIRS Operations Status Report for Friday, September 21, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, September 21 (the end of week 280 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected.
There were no instrument activities this past week. Both instruments continue in routine operations.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) There will be no MODIS lunar calibration roll maneuver in September since the required roll angle would exceed mission constraints.
2) An AIRS Guard Test is scheduled for Thursday, September 27. Here is detailed timeline (UTC):
AIRS Guard Test - September 27, 2007
270/19:53:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
270/20:20:00 AIRS put into OPERATE mode (Guard Test complete)
3) A photometric calibration is planned for October 8.
4) Aqua drag make up maneuver #31 has been postponed until approximately November 1.
Subject: AIRS Operations Status Report For September 27, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, September 27 (almost the end of week 281 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy). Both instruments continue in routine operations.
An AIRS guard test was performed today. Here is the detailed timeline (UT):
270/19:53:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
270/20:20:00 AIRS put into OPERATE mode (Guard Test complete)
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) Aqua drag make up maneuver #31 will take place on or near November 1.
2) MODIS lunar calibration roll maneuver #49 is planned for late October.
Subject: AIRS Operations Status Report For October 5, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, October 5 (the end of week 282 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy). Both instruments continue in routine operations.
There were no instrument activities this past week.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS photometric calibration sequence will be performed on Monday, October 8. Here is the detailed timeline (UT):
281/20:32:00 Photocal Lamp 3 On (S/C day)
281/20:40:00 Photocal Lamps Off (S/C day)
281/21:21:00 Photocal Lamp 3 On (S/C night)
281/21:29:00 Photocal Lamps Off (S/C night)
2) MODIS lunar calibration roll maneuver #49 and an AIRS guard test are planned for Wednesday, October 24. The
detailed timeline is not available yet.
3) Aqua drag make up maneuver #31 will take place on or near November 1.
Subject: Fwd: AIRS Operations Status Report for Thursday, October 11, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report
for Thursday, October 11 (almost the end of week 283 of the Aqua
mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and
temperatures as expected. Both instruments continue in routine
operations.
An AIRS photometric calibration sequence was performed on Monday,
October 8. Here is the detailed timeline (UT):
281/20:32:00 Photocal Lamp 3 On (S/C day)
281/20:40:00 Photocal Lamps Off (S/C day)
281/21:21:00 Photocal Lamp 3 On (S/C night)
281/21:29:00 Photocal Lamps Off (S/C night)
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #49 and an AIRS guard test
are planned for Wednesday, October 24. The
detailed timeline is not available yet.
2) Aqua drag make up maneuver #31 will take place on or near November 1.
Subject: AIRS Operations Status Report For October 19, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report
for Friday, October 19 (the end of week 284 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and
temperatures as expected (AMSU-A2 temperature readouts remain noisy).
Both instruments continue in routine operations.
There were no instrument activities this past week.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) Aqua drag make up maneuver #31 will take place on or near November 7.
2) MODIS lunar calibration roll maneuver #49 and an AIRS guard test
are planned for Tuesday, November 20. The October lunar calibration
maneuver will not take place. The detailed timeline for the
November roll is not available yet.
Subject: AIRS Operations Status Report For October 25, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, October 25 (almost the end of week 285 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected (AMSU-A2 temperature readouts remain noisy). Both instruments continue in routine operations.
There were no instrument activities this past week.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS guard test will take place this coming Tuesday, October 30. Here is the detailed timeline (UT):
303/15:41:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
303/16:08:00 AIRS put into OPERATE mode (Guard Test complete)
2) Aqua drag make up maneuver #31 will take place on or near November 7.
3) MODIS lunar calibration roll maneuver #49 and an AIRS guard test are planned for Tuesday, November 20. The October lunar calibration
maneuver will not take place. The detailed timeline for the November roll is not available yet.
Subject: Interim AIRS Operations Status Report For October 29, 2007
This is an interim AIRS, AMSU-A, and HSB operations status report for Monday, October 29 (during week 286 of the Aqua mission).
AIRS remains healthy with all voltages, currents, and temperatures as expected. AMSU-A is mostly healthy, with all voltages, currents, and temperatures as expected, but see the second paragraph below. Both instruments continue in routine operations.
There were no instrument activities this past week.
In recent weeks the gain on AMSU-A channel 4 has been decreasing and the noise increasing at a noticeable rate. We are studying this issue. Channel 4 is still being used in AIRS retrievals at the GES DISC. But if the noise increase continues at its present rate it could significantly affect the quality of both the radiances and the retrievals. Channel 4 might even have to be declared non-operational some time in the next month or two. More details on this anomaly will be available in future status reports.
The AIRS guard test, originally scheduled for Tuesday, October 30, has been rescheduled to Friday, November 2 (see "Upcoming events" below). There will be no guard test on October 30. This rescheduling was necessitated by the fact that a spacecraft operational constraint would have been violated by the October 30 test.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS guard test will take place this coming Friday, November 2. Here is the detailed timeline (UT):
306/19:27:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
306/19:54:00 AIRS put into OPERATE mode (Guard Test complete)
The guard test originally scheduled for October 30 has been cancelled.
2) Aqua drag make up maneuver #31 will take place on or near November 7.
3) MODIS lunar calibration roll maneuver #49 and an AIRS guard test are planned for Tuesday, November 20. The October lunar
calibration maneuver will not take place. The detailed timeline for the November roll is not available yet.
Subject: AIRS Operations Status Report For November 2, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, November 2 (the end of week 286 of the Aqua mission).
AIRS remains healthy with all voltages, currents, and temperatures as expected. Except for channel 4, AMSU-A is also healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week, but an AIRS guard test is scheduled for later today. See "Upcoming events" below.
The AIRS Project continues to study the impact of the decreased responsivity and increased noise in AMSU-A channel 4. We have sent out two advisories describing the situation, one to the AIRS data users list and one to the direct broadcast users list. JPL ISA (incident-surprise-anomaly) report number Z91778 was issued on October 30. The Earth Sciences Mission Operations Project at Goddard Space Flight Center is also organizing a team to investigate the current and predicted performance of this channel.
Below is an excerpt from the advisory sent by Ed Olsen, of the AIRS Project, to AIRS data users:
The radiometric noise, NeDT, in AMSU channel 4 ( center frequency 52.8 GHz, weighting function peaking at 850 hPa) has recently increased significantly. At launch it was 0.12 K, and it had slowly risen as the instrument aged to 0.2 K through April of 2007. Beginning in May, 2007 it began to rise more rapidly and reached a level of 0.4 K in September, 2007. Beginning in late September, the rate of increase accelerated so that by the end of October the NeDT is near 1 K.
The AMSU channel 4 NeDT has now risen to a level that may adversely affect the accuracy of the MW-only retrieval products in the lower atmosphere. The AIRS Project is assessing its impact on both the MW-only products and the possible consequences of the loss of this channel on the standard products, which are the result of the combined MW/IR retrieval algorithm. The Project is also examining strategies to mitigate the impact of the higher NeDT or possible loss of this channel in the future.
Data users are advised to exercise caution in the use of the radiances from AMSU channel 4 at any date after July, 2007. The MW-only geophysical products should also be used with caution at any date after September, 2007.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal. Channel 4 is exhibiting decreasing responsivity
and increasing noise.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS guard test will take place Friday, November 2. Here is the detailed timeline (UT):
306/19:27:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
306/19:54:00 AIRS put into OPERATE mode (Guard Test complete)
2) Aqua drag make up maneuver #31 will take place on Wednesday, November 7. Here is the detailed timeline (UT):
311/14:52:00 AIRS Thruster Suspend sequence started
311/14:53:07 AIRS in Ready mode, DC Restores suspended, scanner parked
311/14:55:00 Slew out in yaw begins
311/15:04:10 Slew out complete (14.35 ∞ yaw angle)
311/15:45:00 Burn begins (duration 16.0 seconds)
311/15:45:16 Burn complete
311/15:55:00 Slew back to nominal attitude begins
311/16:04:10 Slew back complete
311/17:45:00 AIRS Thruster Resume sequence started
311/17:46:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
3) An AIRS photometric calibration sequence is also scheduled for Wednesday, November 7. Here is the detailed timeline (UT):
311/20:41:00 Photocal Lamp 3 On (S/C day)
311/20:49:00 Photocal Lamps Off (S/C day)
311/21:30:00 Photocal Lamp 3 On (S/C night)
311/21:38:00 Photocal Lamps Off (S/C night)
4) MODIS lunar calibration roll maneuver #49 and an AIRS guard test are planned for Tuesday, November 20.
The detailed timeline is not available yet.
Subject: AIRS Operations Status Report (interim)For November 6, 2007
This is an interim AIRS, AMSU-A, and HSB operations status report for Tuesday, November 6 (during week 287 of the Aqua mission).
This report is being issued because Aqua drag make up maneuver #31, originally scheduled for November 7, has been postponed. The probable new date is Friday, November 9, but that date is not definite. Naturally, no detailed timeline is available at this time.
AIRS remains healthy with all voltages, currents, and temperatures as expected. Except for channel 4, AMSU-A is also healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
An AIRS guard test was performed on Friday, November 2. Here is the detailed timeline (UT):
306/19:27:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
306/19:54:00 AIRS put into OPERATE mode (Guard Test complete)
A telecon with the Earth Science Mission Operations (ESMO) project at GSFC was held today to discuss the degradation we are seeing in AMSU-A channel 4. The AIRS Project continues to study the potential impact on our Level 2 products. At the moment no effect is discernible, but if the channel continues to degrade some impact is inevitable. The Project is also studying a number of options involving the Level 2 science software which could mitigate the possible future loss of this channel. ESMO is looking into the contractual requirements for obtaining consulting help from NGES, the builders of AMSU-A.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal. Channel 4 is exhibiting decreasing responsivity
and increasing noise.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) Aqua drag make up maneuver #31 has been postponed and will not take place on Wednesday, November 7,
as originally planned. The estimated new date is Friday, November 9. No detailed timeline is available yet.
2) An AIRS photometric calibration sequence is still scheduled for Wednesday, November 7. Here is the detailed timeline (UT):
311/20:41:00 Photocal Lamp 3 On (S/C day)
311/20:49:00 Photocal Lamps Off (S/C day)
311/21:30:00 Photocal Lamp 3 On (S/C night)
311/21:38:00 Photocal Lamps Off (S/C night)
3) MODIS lunar calibration roll maneuver #49 and an AIRS guard test are planned for Tuesday, November 20.
The detailed timeline is not available yet.
Subject: AIRS Operations Status Report (interim) For November 7, 2007
This is an interim AIRS, AMSU-A, and HSB operations status report for Wednesday, November 7 (during week 287 of the Aqua mission).
This report is being issued to provide the new detailed timeline for Aqua drag make up maneuver #31, which was rescheduled from today to Friday, November 9. See "Upcoming events" below.
AIRS remains healthy with all voltages, currents, and temperatures as expected. Except for channel 4, AMSU-A is also healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal. Channel 4 is exhibiting decreasing responsivity
and increasing noise.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS photometric calibration sequence is scheduled for Wednesday, November 7. Here is the detailed timeline (UT):
311/20:41:00 Photocal Lamp 3 On (S/C day)
311/20:49:00 Photocal Lamps Off (S/C day)
311/21:30:00 Photocal Lamp 3 On (S/C night)
311/21:38:00 Photocal Lamps Off (S/C night)
2) Aqua drag make up maneuver #31 has been rescheduled to Friday, November 9. Here is the detailed timeline (UT):
313/14:42:00 AIRS Thruster Suspend sequence started
313/14:43:07 AIRS in Ready mode, DC Restores suspended, scanner parked
313/14:45:00 Slew out in yaw begins
313/14:54:10 Slew out complete (14.35 ∞ yaw angle)
313/15:35:00 Burn begins (duration 18.5 seconds)
313/15:35:19 Burn complete
313/15:45:00 Slew back to nominal attitude begins
313/15:54:10 Slew back complete
313/17:35:00 AIRS Thruster Resume sequence started
313/17:36:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
3) MODIS lunar calibration roll maneuver #49 and an AIRS guard test are planned for Tuesday, November 20.
The detailed timeline is not available yet.
Subject: AIRS Operations Status Report For November 9, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, November 9 (the end of week 287 of the Aqua mission).
AIRS remains healthy with all voltages, currents, and temperatures as expected. Except for channel 4, AMSU-A is also healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
An AIRS photometric calibration sequence was run on Wednesday, November 7. Here is the detailed timeline (UT):
311/20:41:00 Photocal Lamp 3 On (S/C day)
311/20:49:00 Photocal Lamps Off (S/C day)
311/21:30:00 Photocal Lamp 3 On (S/C night)
311/21:38:00 Photocal Lamps Off (S/C night)
Aqua drag make up maneuver #31, which had been rescheduled from Wednesday November 7, ran successfully today. The AIRS instrument is now completely back in normal operating configuration (see the paragraph below just before "AIRS hardware state"). Here is the detailed timeline (UT):
313/14:42:00 AIRS Thruster Suspend sequence started
313/14:43:07 AIRS in Ready mode, DC Restores suspended, scanner parked
313/14:45:00 Slew out in yaw begins
313/14:54:10 Slew out complete (14.35 ∞ yaw angle)
313/15:35:00 Burn begins (duration 18.5 seconds)
313/15:35:19 Burn complete
313/15:45:00 Slew back to nominal attitude begins
313/15:54:10 Slew back complete
313/17:35:00 AIRS Thruster Resume sequence started
313/17:36:50 Scanner scanning, DC Restores resumed, AIRS in Operate mode
The AIRS Project continues to study the impact of the degradation of AMSU-A channel 4 on our science products. The Level 2 products have not been significantly impacted yet. But we believe the degradation of channel 4 is likely to continue, so some change to the Level 2 software needs to be made. Several options are under consideration for the short term, including:
a) (temporarily) switching to the already-in-place AIRS-only retrieval algorithm;
b) (could be implemented before the end of December) modifying the standard AIRS Level 2 software to either avoid the use of channel 4 or model channel 4's new behavior.
No final short-term option has been selected yet. In the meantime, the health of AMSU-A is being carefully weighed during the planning of Version 6 of the science software, scheduled for release in late 2008.
On Wednesday, November 7 a human error caused a spacecraft command to be sent earlier than it should have been. That command released for execution an AIRS command sequence which was not supposed to run. The net result was that, for several minutes starting at 17:45 UT, the AIRS scanner was not in scan mode even though the instrument mode was marked as "Operate" in the telemetry. This means that the automated AIRS science software would try to process the data and would produce erroneous results for several minutes. In addition, a periodic DC restore command was issued to run every 20 minutes, even though another such command was already running. The science software is not designed to handle multiple DC restores in a single granule. Fortunately, the radiances produced by the Level 1B software appear to be fine. Only some status and quality flags are improperly set. We chose to leave AIRS in this double DC restore state until today's drag make up maneuver, at which time the instrument was restored to its normal state.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal. Channel 4 is exhibiting decreasing responsivity
and increasing noise.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #49 and an AIRS guard test are planned for Tuesday, November 20.
The detailed timeline is not available yet.
Subject: AIRS Operations Status Report For November 16, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, November 16 (the end of week 288 of the Aqua mission).
AIRS remains healthy with all voltages, currents, and temperatures as expected. Except for channel 4, AMSU-A is also healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
The AIRS Project continues to study the impact of the degradation of AMSU-A channel 4 on our science products. Channel 4 performance is steadily getting worse. Level 2 products are beginning to be impacted. Because of this, we have requested that the GES DISC begin running the AIRS-only algorithm. For the time being, both the standard AIRS+AMSU PGE and the new AIRS-only PGE will run in parallel, and the output from both programs will be accessible to the public. In this way, users can determine which product works best for them.
In the meantime, work is proceeding on a modified AIRS+AMSU Level 2 PGE that takes into account the fact that channel 4 has degraded. Careful testing must be performed and complete documentation made available before the new software can be used at the GES DISC.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal. Channel 4 is exhibiting decreasing responsivity
and increasing noise.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) MODIS lunar calibration roll maneuver #49 and an AIRS guard test are scheduled for Tuesday, November 20.
Here is the detailed timeline (UT):
324/16:10:00 AIRS put into READY mode (Lunar Cal begins)
324/16:11:50 Slew begins (roll amount -0.3906 degrees)
324/16:13:21 Slew complete
324/16:21:51 Return slew begins
324/16:23:22 Return slew complete
324/16:28:22 Spacecraft back in fine point mode
324/16:30:00 AIRS back in OPERATE mode
324/19:15:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
324/19:42:00 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report For November 30, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, November 30 (the end of week 290 of the Aqua mission).
AIRS remains healthy with all voltages, currents, and temperatures as expected. Except for channel 4, AMSU-A is also healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
MODIS lunar calibration roll maneuver #49 and an AIRS guard test took place on Tuesday, November 20. Here is the detailed timeline (UT):
324/16:10:00 AIRS put into READY mode (Lunar Cal begins)
324/16:11:50 Slew began (roll amount -0.3906 degrees)
324/16:13:21 Slew completed
324/16:21:51 Return slew began
324/16:23:22 Return slew completed
324/16:28:22 Spacecraft back in fine point mode
324/16:30:00 AIRS back in OPERATE mode
324/19:15:00 AIRS Guard Test began (AIRS in CHECKOUT mode)
324/19:42:00 AIRS back in OPERATE mode
AMSU-A channel 4 continues to degrade. Although the standard AIRS Level 2 product (which uses combined AIRS and AMSU-A data) has been impacted somewhat, it is still good quality. If the degradation continues, the product quality will eventually become unacceptable unless something is done. The AIRS science team has approved for implementation a revised version 5 Level 2 PGE which will not use AMSU-A channel 4, but will use all other channels (except 7). The code changes are minimal. However, thorough testing and documentation are expected to take six to eight weeks. In the meantime, the GES DISC is running both the standard PGE and the AIRS-only version of the PGE, and making both products available to users. The root hardware cause of the anomaly is under investigation by Northrop Grumman Electronic Systems (NGES) in Azusa, California. NGES built AMSU-A.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal. Channel 4 is exhibiting decreasing responsivity
and increasing noise.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS photometric calibration is scheduled for Thursday, December 6. Here is the detailed timeline (UT):
340/19:19:00 Photocal Lamp 1 On (S/C night)
340/19:27:00 Photocal Lamps Off (S/C night)
340/20:08:00 Photocal Lamp 1 On (S/C day)
340/20:16:00 Photocal Lamps Off (S/C day)
340/20:57:00 Photocal Lamp 2 On (S/C night)
340/21:05:00 Photocal Lamps Off (S/C night)
340/21:47:00 Photocal Lamp 2 On (S/C day)
340/21:55:00 Photocal Lamps Off (S/C day)
340/22:36:00 Photocal Lamp 3 On (S/C night)
340/22:44:00 Photocal Lamps Off (S/C night)
340/23:26:00 Photocal Lamp 3 On (S/C day)
340/23:34:00 Photocal Lamps Off (S/C day)
Note that all three lamps will be exercised. That is in accordance with our standard procedure, which calls for using
lamp 3 alone most months, but using lamps 1 and 3 in June and all three lamps in December.
Subject: AIRS Operations Status Report For December 6, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, December 6 (almost the end of week 291 of the Aqua mission).
AIRS remains healthy with all voltages, currents, and temperatures as expected. Except for channel 4, AMSU-A is also healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
Early this past Sunday (December 2) a combination of ground system problems and operator error at the EOS Operations Center caused corruption of the memory partition that holds the ground-based attitude determination (GBAD) data in the Aqua spacecraft's solid state recorder (SSR). About 19 hours of GBAD data were permanently lost because nothing was written to that partition for most of Sunday. Since late Sunday GBAD data have been being recorded on the SSR and downlinked as usual. But the data has format problems which have prevented it from being processed at EDOS. That means that all data from all Aqua instruments can be captured and stored, but at this time cannot be processed through Level 1 or beyond by most users because GBAD is required for geolocation. Direct broadcast users are not affected because they get the GBAD in the direct broadcast without it having to pass through the SSR. Affected users include NOAA, which gets AIRS and AMSU-A data directly from EDOS for use in weather forecasting, as well as the GES DISC which performs standard Level 1 and Level 2 processing of AIRS and AMSU-A data. The AIRS Project has requested the GES DISC to run its near-real-time process with a flag set to run Level 1 without storing valid latitudes and longitudes in the products. But the standard pipeline and all Level 2 processing are halted until further notice. Instrument housekeeping data is available and is processed at the EOC, so the instruments (and spacecraft) are not in danger. Processing of instrument housekeeping telemetry at the GES DISC is done in Level 1A, so the standard pipeline at the GES DISC is not processing engineering data.
The ESMO Project at GSFC is working with NGST (the builders of the spacecraft) to correct the problem, which is still on-going. Possible solutions are being discussed. Unfortunately, all options involve new procedures which will have to be developed and thoroughly tested. In the meantime, EDOS is working on a way to process the GBAD data that is coming down now, so that normal science data processing can resume while the SSR problem is being worked.
The ESMO Project is also investigating the possibility of reconstructing the lost GBAD data using other spacecraft telemetry and help from the Flight Dynamics Facility.
An AIRS photometric calibration sequence took place today. Here is the detailed timeline (UT):
340/19:19:00 Photocal Lamp 1 On (S/C night)
340/19:27:00 Photocal Lamps Off (S/C night)
340/20:08:00 Photocal Lamp 1 On (S/C day)
340/20:16:00 Photocal Lamps Off (S/C day)
340/20:57:00 Photocal Lamp 2 On (S/C night)
340/21:05:00 Photocal Lamps Off (S/C night)
340/21:47:00 Photocal Lamp 2 On (S/C day)
340/21:55:00 Photocal Lamps Off (S/C day)
340/22:36:00 Photocal Lamp 3 On (S/C night)
340/22:44:00 Photocal Lamps Off (S/C night)
340/23:26:00 Photocal Lamp 3 On (S/C day)
340/23:34:00 Photocal Lamps Off (S/C day)
Note that all three lamps were exercised. That is in accordance with our standard procedure, which calls for using
lamp 3 alone most months, but using lamps 1 and 3 in June and all three lamps in December.
AMSU-A channel 4 continues to degrade. As of December 1, NeDT calculated by the AMSU-A Level 1B software had reached 2.2K. Engineers from Northrop Grumman Electronic Systems (NGES) (the builders of AMSU-A) came to JPL on December 5. We gave them two days of AMSU-A data, one from mid-2005 (when channel 4 was healthy) and one from recent days. They will use the data in their investigation to find the root hardware cause of the anomaly.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal. Channel 4 is exhibiting decreasing responsivity
and increasing noise.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
None scheduled at this time.
Subject: AIRS Operations Status Report For December 14, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, December 13 (the end of week 292 of the Aqua mission).
AIRS remains healthy with all voltages, currents, and temperatures as expected. Except for channel 4, AMSU-A is also healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
The Aqua SSR anomaly described in last week's report is still present on board the spacecraft. However, the Aqua Flight Operations Team has an operational work around that permits the spacecraft attitude data to be downloaded to the ground in a format that EDOS can read. So, as far as the ground system is concerned, the anomaly no longer affects normal operations. All science processing, including near-real-time processing, resumed as of late Tuesday, December 11. Catch-up processing of data from late December 2 (when writing the attitude data to the SSR resumed) through December 11 is virtually complete as well. The Earth Science Mission Operations project (ESMO) at GSFC believes that even the lost attitude data (most of December 2) can eventually be regenerated from other sources, though at lower temporal resolution. In the meantime, work on fixing the original problem on Aqua has been temporarily suspended until more serious problems with the Aura spacecraft's FMU/SSR can be corrected. The Aura anomaly correction work is expected to continue into January 2008. Once it is completed, the Aqua problem will then be worked on and a permanent fix implemented.
AMSU-A channel 4 continues to degrade. As of December 12, NeDT calculated by the AMSU-A Level 1B software had reached 2.6K. Engineers from Northrop Grumman Electronic Systems (NGES) (the builders of AMSU-A) continue to investigate the root hardware cause of the anomaly. Within the AIRS Project, work is proceeding on an updated version of the Version 5 Level 2 PGE. The updated version will make no use of AMSU-A channel 4, but will use all other healthy channels. The GES DISC is still running the original Version 5 PGE and, in parallel, the AIRS-only Level 2 PGE.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal. Channel 4 is exhibiting decreasing responsivity
and increasing noise.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
1) An AIRS guard test has been scheduled for Thursday, December 20. Here is the detailed timeline (UT):
354/19:28:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
354/19:55:00 AIRS put into OPERATE mode (Guard Test complete)
There is no MODIS lunar calibration roll maneuver planned for this month.
Subject: AIRS Operations Status Report For December 20, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, December 20 (almost the end of week 293 of the Aqua mission).
AIRS remains healthy with all voltages, currents, and temperatures as expected. Except for channel 4, AMSU-A is also healthy. Both instruments continue in routine operations.
The operational workaround developed by the Aqua Flight Operations Team is providing timely science and engineering data in spite of the problem with the Aqua solid state recorder.
AMSU-A channel 4 is still degrading. As of December 15, NeDT calculated by the AMSU-A Level 1B software was slightly under 3.0K. Engineers from Northrop Grumman Electronic Systems (NGES) (the builders of AMSU-A) are investigating the root hardware cause of the anomaly. Within the AIRS Project, work is proceeding on an updated version of the Version 5 Level 2 PGE. The updated version will make no use of AMSU-A channel 4, but will use all other healthy channels. The GES DISC is still running the original Version 5 PGE and, in parallel, the AIRS-only Level 2 PGE.
An AIRS guard test ran today (December 20). Here is the detailed timeline (UT):
354/19:28:00 AIRS Guard Test began (AIRS in CHECKOUT mode)
354/19:55:00 AIRS put into OPERATE mode (Guard Test complete)
There was no MODIS lunar calibration roll maneuver performed this month.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal. Channel 4 is exhibiting decreasing responsivity
and increasing noise.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
None scheduled at this time.
Subject: AIRS Operations Status Report For December 27, 2007
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, December 27 (almost the end of week 294 of the Aqua mission).
AIRS remains healthy with all voltages, currents, and temperatures as expected. Except for channel 4, AMSU-A is also healthy. Both instruments continue in routine operations.
The operational workaround developed by the Aqua Flight Operations Team is providing timely science and engineering data in spite of the problem with the Aqua solid state recorder.
AMSU-A channel 4 is still degrading. As of December 25, NeDT calculated by the AMSU-A Level 1B software was about 3.35K. Engineers from Northrop Grumman Electronic Systems (NGES) (the builders of AMSU-A) are investigating the root hardware cause of the anomaly. Within the AIRS Project, work is proceeding on an updated version of the Version 5 Level 2 PGE. The updated version will make no use of AMSU-A channel 4, but will use all other healthy channels. The GES DISC is still running the original Version 5 PGE and, in parallel, the AIRS-only Level 2 PGE.
The initial public announcement of this problem, first issued in late October, can be found at:
http://daac.gsfc.nasa.gov/AIRS/amsu_ch4_noise_increase.shtml
A more detailed announcement regarding the impact on Level 2 science products was issued on Friday, December 21 by Steve Friedman, Deputy AIRS Project Manager. It can be found on the GES DISC web site. To summarize, the yield of retrieval products from the operational version 5 AMSU+AIRS PGE is now significant, especially near the surface.
AIRS hardware state: (any changes since previous report are in bold)
AIRS Quiet Bus A on
AIRS Noisy Bus A on
AIRS Survival Bus A on
AIRS Quiet Bus B off
AIRS Noisy Bus B on
AIRS Survival Bus B on
Decontamination heater A off
Decontamination heater B off
Group 2 power on
Detector gain tables optimal gains loaded---Table
PM1_ISC_AIR_450_air_gnc_optimum_v15_0
first loaded on November 18, 2003
Radiometric calibrator heater on
Choke point heater enabled with a set point of 155.56 K
Scanner uncaged;scanning using nominal profile
Cooler A uncaged, electronics on, compressor on,
cold head set point 56.47 K
Cooler B uncaged, electronics on, compressor on,
cold head set point 56.47 K
Focal plane detector modules on
Circumvention processing on
AIRS software state:
Patches: version 11 loaded
Macros: version 17 loaded
EDC tables: alternates #1, #2, and #4 loaded,
nominal EDC table active
TMON's: active
OpMode: "OPERATE"
Op submode: "0"
CalFunc bits: All zeroes
AMSU-A hardware state:
On; scanners in full scan mode. Selected space view is #3. AMSU-A2
non-warm-load temperature read outs are noisy. Actual instrument
temperatures are normal. Channel 4 is exhibiting decreasing responsivity
and increasing noise.
HSB hardware state:
Off (survival mode); scanner stopped at about scan position 38
(about 8 degrees off nadir). TMON 51, which turns on the survival
heater at -15 degrees C, is enabled. TMON 52, which turns off the
survival heater at 0 degrees C, is disabled. The survival heater is
on. Local Oscillator temperatures have stabilized at about +15 C.
Upcoming events:
None scheduled at this time.