Subject: AIRS Operations Status Report for January 9, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, January 9 2004 (the end of week 88 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
A MODIS lunar calibration roll maneuver (-3.4 degrees) was successfully executed on Friday, January 2. The timeline was as follows (all times UT on DOY 002).
10:22:00 Guard Test begins (AIRS in CHECKOUT mode)
10:50:00 AIRS back in OPERATE mode
15:10:00 AIRS in READY mode
_______________________________________________________________________
15:10:47 Roll begins
15:14:55 Roll complete
15:16:55 MODIS begins collecting lunar calibration data
15:23:25 Data collection ends and return roll begins
15:27:53 Return roll completed
15:32:53 Spacecraft back in fine point mode
_______________________________________________________________________
15:33:00 AIRS back 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) HSB restart attempt on January 15.
(2) Drag make up burn on January 21. Additional details are not yet available.
(3) MODIS lunar calibration roll maneuver on February 1. Additional details will
follow in a later report.
Subject: AIRS Operations Status Report for January 16, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, January 16 2004 (the end of week 89 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations. There were no AIRS or AMSU-A activities this past week.
An attempt to restart HSB took place on January 15 but it was not successful. Once again, the instrument failed to initialize. The scanner did not move. Due to high scan motor current the spacecraft telemetry monitoring software shut off HSB after about one minute, as designed.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) Drag make up burn #14 on January 21. Here is the timeline (all times UT on DOY021):
15:00:00 AIRS put in READY mode
15:00:03 AIRS time-delayed command queue cleared (stops DC restores)
15:00:06 Restart periodic focal plane temperature read back
15:00:10 AIRS scanner begins parking
15:05:00 Slew out in yaw begins
16:00:00 Burn begins (duration 10 seconds)
16:45:00 Slew back to nominal attitude begins
17:00:00 Spacecraft back in fine point mode
17:45:00 AIRS scanner commanded to resume scanning
17:46:30 Periodic DC restores restarted
17:46:33 AIRS back in OPERATE mode
In accordance with our new policy, the AMSU-A scanners will not be parked for
this burn.
(2) A MODIS lunar calibration roll maneuver is scheduled for February 1. The roll
amount will be -11 degrees. Additional details will follow in a later report.
(3) An orbital inclination maneuver engineering test is tentatively scheduled for
March 15. A series of small inclination adjustments is planned for October 2004.
Subject: AIRS Operations Status Report for January 23, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, January 23 2004 (the end of week 90 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
Drag make up burn #14 was successfully performed on Wednesday, January 21. Here is the detailed timeline (all times UT on DOY021):
15:00:00 AIRS in READY mode
15:00:03 AIRS time-delayed command queue cleared (stops DC restores)
15:00:06 Restart periodic focal plane temperature read back
15:00:10 AIRS scanner began parking
15:05:00 Slew out in yaw began
16:00:00 Burn began (duration 45 seconds)
16:45:00 Slew back to nominal attitude began
17:00:00 Spacecraft back in fine point mode
17:45:00 AIRS scanner commanded to resume scanning
17:46:30 Periodic DC restores restarted
17:46:33 AIRS back 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A MODIS lunar calibration roll maneuver is scheduled for February 1. The roll
amount will be -11 degrees. Here is the detailed timeline (all times UT):
032/11:28:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
032/11:56:45 AIRS put into READY mode (Guard Test complete)
032/11:57:02 Slew begins (roll amount -11.0 degrees)
032/12:05:04 Slew complete
032/12:07:04 MODIS data collection begins
032/12:13:34 MODIS data collection ends and return slew begins
032/12:25:35 Return slew completed
032/12:26:36 Spacecraft back in fine point mode
032/12:26:40 AIRS back in OPERATE mode
Note that the first part of this maneuver (until 12:05:15) takes place in
sunlight. But because the roll is negative eleven degrees there should be
no thermal impact on AIRS.
(2) An orbital inclination maneuver is tentatively scheduled for March 15.
The burn time will be 600 seconds, not including the yaw slews. A series
of four similar inclination adjustments is planned for October 2004. This
entire plan is subject to change. Changes will be noted here if they occur.
Subject: AIRS Operations Status Report for January 30, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, January 30 2004 (the end of week 91 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this week. A MODIS lunar calibration maneuver will be performed this coming Sunday, February 1. The detailed timeline is in "Upcoming events" below. The date of the next drag make up burn is still TBD.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A MODIS lunar calibration roll maneuver is scheduled for February 1. The roll
amount will be -11 degrees. Here is the detailed timeline (all times UT):
032/11:28:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
032/11:56:45 AIRS put into READY mode (Guard Test complete)
032/11:57:02 Slew begins (roll amount -11.0 degrees)
032/12:05:04 Slew complete
032/12:07:04 MODIS data collection begins
032/12:13:34 MODIS data collection ends and return slew begins
032/12:25:35 Return slew completed
032/12:26:36 Spacecraft back in fine point mode
032/12:26:40 AIRS back in OPERATE mode
Note that the first part of this maneuver (until 12:05:15) takes place in
sunlight. But because the roll is negative eleven degrees there should be
no thermal impact on AIRS.
(2) An orbital inclination maneuver is scheduled for March 15.
The burn time will be 600 seconds, not including the yaw slews. A series
of four similar inclination adjustments is planned for October 2004. Changes
to this plan will be noted here if they occur.
Subject: AIRS Operations Status Report for February 6, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, February 6 2004 (the end of week 92 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
A MODIS lunar calibration maneuver was successfully performed this past Sunday, February 1. Here is the detailed timeline (all times UT):
032/11:28:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
032/11:56:45 AIRS put into READY mode (Guard Test complete)
032/11:57:02 Slew begins (roll amount -11.0 degrees)
032/12:05:04 Slew complete
032/12:07:04 MODIS data collection begins
032/12:13:34 MODIS data collection ends and return slew begins
032/12:25:35 Return slew completed
032/12:26:36 Spacecraft back in fine point mode
032/12:26:40 AIRS back in OPERATE mode
The next MODIS lunar calibration is scheduled for March 2. No drag make up burn has been scheduled at this 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A MODIS lunar calibration roll maneuver is scheduled for March 2. No
details are available at this time.
(2) An orbital inclination maneuver is scheduled for March 15.
The burn time will be 600 seconds, not including the yaw slews. A series
of four similar inclination adjustments is planned for October 2004. Changes
to this plan will be noted here if they occur.
Subject: AIRS Operations Status Report for February 13, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, February 13 (Yikes!) 2004 (the end of week 93 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
The next MODIS lunar calibration roll maneuver is scheduled for Tuesday, March 2. The detailed timeline is not yet available. No drag make up burn has been scheduled at this time.
There will be a delta inclination maneuver on Monday, March 15. The detailed timeline is given 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A MODIS lunar calibration roll maneuver is scheduled for March 2. No
details are available at this time.
(2) An orbital inclination maneuver is scheduled for March 15.
A series of four similar inclination adjustments is planned for October
2004. Here is the detailed timeline for the March 15 event (all times UT):
075/15:05:00 AIRS to READY mode
075/15:05:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
075/15:05:10 Periodic read back of the focal plane temperature re-started
075/15:05:15 AIRS scanner parking begins
075/15:09:22 Begin slew-out on thrusters
075/15:18:52 Slew-out complete
075/15:18:52 Start 600-second Delta-I burn
075/15:28:52 End of burn
075/15:29:23 Begin slew-back on thrusters
075/15:40:48 Slew-back complete
075/15:48:19 Full pointing accuracy restored
075/17:15:00 AIRS scanner begins returning to normal scanning
075/17:16:35 Periodic DC restores re-started
075/17:16:40 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for February 20, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, February 20 2004 (the end of week 94 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
The next MODIS lunar calibration roll maneuver is scheduled for Tuesday, March 2. The detailed timeline is not yet available. No drag make up burn has been scheduled at this time.
A delta inclination maneuver is tentatively planned for Monday, March 15. A detailed timeline is given in "Upcoming events" below. There is a possibility that the date of the maneuver will be changed to March 31. If that happens, the detailed timeline will be revised accordingly.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A MODIS lunar calibration roll maneuver is scheduled for March 2. No
details are available at this time.
(2) An orbital inclination maneuver is planned for March 15 or March 31.
A series of four similar inclination adjustments is planned for October
2004. Here is the detailed timeline if the maneuver takes place on March
15 (all times UT):
075/15:05:00 AIRS to READY mode
075/15:05:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
075/15:05:10 Periodic read back of the focal plane temperature re-started
075/15:05:15 AIRS scanner parking begins
075/15:09:22 Begin slew-out on thrusters
075/15:18:52 Slew-out complete
075/15:18:52 Start 600-second Delta-I burn
075/15:28:52 End of burn
075/15:29:23 Begin slew-back on thrusters
075/15:40:48 Slew-back complete
075/15:48:19 Full pointing accuracy restored
075/17:15:00 AIRS scanner begins returning to normal scanning
075/17:16:35 Periodic DC restores re-started
075/17:16:40 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for February 27, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, February 27 2004 (the end of week 95 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
The next MODIS lunar calibration roll maneuver is scheduled for Tuesday, March 2. Details are in "Upcoming events" below. The roll amount this month is -14.2 degrees.
A delta inclination maneuver is tentatively planned for Monday, March 15. A detailed timeline is given in "Upcoming events" below. It is now looking more and more likely that the date of the maneuver will be changed to March 31. A detailed timeline for that date is not yet available. A final decision on the date of the maneuver is expected by March 8.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A MODIS lunar calibration roll maneuver is scheduled for March 2. Here is
the detailed timeline (all times UT):
062/06:41:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
062/07:10:00 AIRS put into READY mode (Guard Test complete)
062/07:13:11 Slew begins (roll amount -14.19 degrees)
062/07:22:18 Slew complete
062/07:24:18 MODIS data collection begins
062/07:30:48 MODIS data collection ends and return slew begins
062/07:39:55 Return slew completed
062/07:44:55 Spacecraft back in fine point mode
062/07:45:00 AIRS back in OPERATE mode
(2) An orbital inclination maneuver is planned for March 15 or March 31.
A series of four similar inclination adjustments is planned for October
2004. Here is the detailed timeline if the maneuver takes place on March
15 (all times UT):
075/15:05:00 AIRS to READY mode
075/15:05:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
075/15:05:10 Periodic read back of the focal plane temperature re-started
075/15:05:15 AIRS scanner parking begins
075/15:09:22 Begin slew-out on thrusters
075/15:18:52 Slew-out complete
075/15:18:52 Start 600-second Delta-I burn
075/15:28:52 End of burn
075/15:29:23 Begin slew-back on thrusters
075/15:40:48 Slew-back complete
075/15:48:19 Full pointing accuracy restored
075/17:15:00 AIRS scanner begins returning to normal scanning
075/17:16:35 Periodic DC restores re-started
075/17:16:40 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for March 4, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, March 4 2004 (the end of week 96 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There was a successful MODIS lunar calibration roll maneuver on Tuesday, March 2. As usual, an AIRS guard test was performed prior to the roll. The roll amount was -14.2 degrees. Here is the timeline (all times UT):
062/06:41:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
062/07:10:00 AIRS put into READY mode (Guard Test complete)
062/07:13:11 Slew begins (roll amount -14.19 degrees)
062/07:22:18 Slew complete
062/07:24:18 MODIS data collection begins
062/07:30:48 MODIS data collection ends and return slew begins
062/07:39:55 Return slew completed
062/07:44:55 Spacecraft back in fine point mode
062/07:45:00 AIRS back in OPERATE mode
A delta inclination maneuver is tentatively planned for Monday, March 15. A detailed timeline is given in "Upcoming events" below. It is likely that the date of the maneuver will be changed to March 31. A detailed timeline for that date is not yet available. A final decision on the date of the maneuver is expected by March 8.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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 orbital inclination maneuver is planned for March 15 or March 31.
A series of four similar inclination adjustments is planned for October
2004. Here is the detailed timeline if the maneuver takes place on March
15 (all times UT):
075/15:05:00 AIRS to READY mode
075/15:05:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
075/15:05:10 Periodic read back of the focal plane temperature re-started
075/15:05:15 AIRS scanner parking begins
075/15:09:22 Begin slew-out on thrusters
075/15:18:52 Slew-out complete
075/15:18:52 Start 600-second Delta-I burn
075/15:28:52 End of burn
075/15:29:23 Begin slew-back on thrusters
075/15:40:48 Slew-back complete
075/15:48:19 Full pointing accuracy restored
075/17:15:00 AIRS scanner begins returning to normal scanning
075/17:16:35 Periodic DC restores re-started
075/17:16:40 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for March 12, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, March 12 2004 (the end of week 97 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
The delta inclination maneuver is now definitely scheduled for March 31. The detailed timeline appears below. Both slews, as well as the delta-i burn itself, use thrusters. There will be no maneuver on March 15.
The next MODIS lunar calibration roll maneuver is scheduled for April 1. The roll amount will be -12.1 degrees. The detailed timeline is not yet available.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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 orbital inclination maneuver is scheduled for March 31.
A series of four similar inclination adjustments is planned for October
2004. Here is the detailed timeline for March 31 (all times UT):
091/15:05:00 AIRS to READY mode
091/15:05:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
091/15:05:10 Periodic read back of the focal plane temperature re-started
091/15:05:15 AIRS scanner parking begins
091/15:11:00 Begin slew-out on thrusters
091/15:20:25 Slew-out complete
091/15:20:25 Start 600-second Delta-I burn
091/15:30:25 End of burn
091/15:30:56 Begin slew-back on thrusters
091/15:42:21 Slew-back complete
091/15:47:21 Full pointing accuracy restored
091/17:15:00 AIRS scanner begins returning to normal scanning
091/17:16:35 Periodic DC restores re-started
091/17:16:40 AIRS back in OPERATE mode
(2) MODIS lunar calibration roll maneuver on April 1. Details TBD. Roll amount
-12.1 degrees.
Subject: AIRS Operations Status Report for March 19, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, March 19 2004 (the end of week 98 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
A delta inclination maneuver is scheduled for March 31. The detailed timeline appears below. Both slews, as well as the delta-i burn itself, use thrusters.
The next MODIS lunar calibration roll maneuver is scheduled for April 1. The roll amount will be -12.1 degrees. The detailed timeline is not yet available.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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 orbital inclination maneuver is scheduled for March 31.
A series of four similar inclination adjustments is planned for October
2004. Here is the detailed timeline for March 31 (all times UT):
091/15:05:00 AIRS to READY mode
091/15:05:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
091/15:05:10 Periodic read back of the focal plane temperature re-started
091/15:05:15 AIRS scanner parking begins
091/15:11:00 Begin slew-out on thrusters
091/15:20:25 Slew-out complete
091/15:20:25 Start 600-second Delta-I burn
091/15:30:25 End of burn
091/15:30:56 Begin slew-back on thrusters
091/15:42:21 Slew-back complete
091/15:47:21 Full pointing accuracy restored
091/17:15:00 AIRS scanner begins returning to normal scanning
091/17:16:35 Periodic DC restores re-started
091/17:16:40 AIRS back in OPERATE mode
(2) MODIS lunar calibration roll maneuver on April 1. Details TBD. Roll amount
-12.1 degrees.
Subject: AIRS Operations Status Report for March 26, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, March 26 2004 (the end of week 99 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
Today the photometric calibrator lamps (for the AIRS Vis/NIR channels) are being turned on. As usual when we do a Vis/NIR calibration, each lamp is turned on for 8 minutes twice, once during spacecraft day and once during spacecraft night. The detailed timeline is as follows:
086/18:22:44 Photocal Lamp 1 On (S/C night)
086/18:30:44 Photocal Lamps Off (S/C night)
086/19:12:03 Photocal Lamp 1 On (S/C day)
086/19:20:03 Photocal Lamps Off (S/C day)
086/20:01:38 Photocal Lamp 2 On (S/C night)
086/20:09:38 Photocal Lamps Off (S/C night)
086/20:50:56 Photocal Lamp 2 On (S/C day)
086/20:58:56 Photocal Lamps Off (S/C day)
086/21:40:31 Photocal Lamp 3 On (S/C night)
086/21:48:31 Photocal Lamps Off (S/C night)
086/22:28:50 Photocal Lamp 3 On (S/C day)
086/22:36:50 Photocal Lamps Off (S/C day)
A delta inclination maneuver is scheduled for Wednesday, March 31. The detailed timeline appears below. Both slews, as well as the delta-i burn itself, use thrusters.
The next MODIS lunar calibration roll maneuver is scheduled for Thursday, April 1. The roll amount will be -12.1 degrees. 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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 orbital inclination maneuver is scheduled for March 31.
A series of four similar inclination adjustments is planned for October
2004. Here is the detailed timeline (all times UT):
091/15:05:00 AIRS to READY mode
091/15:05:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
091/15:05:10 Periodic read back of the focal plane temperature re-started
091/15:05:15 AIRS scanner parking begins
091/15:11:00 Begin slew-out on thrusters
091/15:20:25 Slew-out complete
091/15:20:25 Start 600-second Delta-I burn
091/15:30:25 End of burn
091/15:30:56 Begin slew-back on thrusters
091/15:42:21 Slew-back complete
091/15:47:21 Full pointing accuracy restored
091/17:15:00 AIRS scanner begins returning to normal scanning
091/17:16:35 Periodic DC restores re-started
091/17:16:40 AIRS back in OPERATE mode
(2) A MODIS lunar calibration roll maneuver will take place on April 1.
The roll amount will be -12.1 degrees. Here is the detailed timeline
(all times UT):
092/00:16:18 AIRS Guard Test begins (AIRS in CHECKOUT mode)
092/00:45:00 AIRS put into OPERATE mode (Guard Test complete)
092/02:33:00 AIRS put into READY mode
092/02:33:59 Slew begins (roll amount -12.1168 degrees)
092/02:45:25 Slew complete
092/02:44:25 MODIS data collection begins
092/02:50:55 MODIS data collection ends and return slew begins
092/02:59:21 Return slew completed
092/03:04:21 Spacecraft back in fine point mode
092/03:05:00 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for April 2, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, April 2 2004 (the end of week 100 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
A delta inclination maneuver was successfully performed Wednesday, March 31. The resulting new inclination and new semi-major axis came out much closer to predictions than the results of the October 2003 maneuver. Improvements in the modeling of the interaction of the thruster plume and the spacecraft (especially the solar panels) appear to have been successful. The ESMOS Project at GSFC is now confidently planning four more inclination adjustments for this coming October. Here is the detailed timeline for this week's activity (all times UT):
091/15:05:00 AIRS to READY mode
091/15:05:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
091/15:05:10 Periodic read back of the focal plane temperature re-started
091/15:05:15 AIRS scanner parking begins
091/15:11:00 Begin slew-out on thrusters
091/15:20:25 Slew-out complete
091/15:20:25 Start 600-second Delta-I burn
091/15:30:25 End of burn
091/15:30:56 Begin slew-back on thrusters
091/15:42:21 Slew-back complete
091/15:47:21 Full pointing accuracy restored
091/17:15:00 AIRS scanner begins returning to normal scanning
091/17:16:35 Periodic DC restores re-started
091/17:16:40 AIRS back in OPERATE mode
A MODIS lunar calibration roll maneuver was successfully performed Thursday, April 1. The roll amount was -12.1 degrees. Here is the detailed timeline (all times UT). Note that the start time of the AIRS guard test was moved about four minutes earlier than the time specified in last week's status report. This change had to be made to avoid a constraint violation involving performing guard tests too close in time to a South Atlantic Anomaly crossing.
092/00:12:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
092/00:45:00 AIRS put into OPERATE mode (Guard Test complete)
092/02:33:00 AIRS put into READY mode
092/02:33:59 Slew begins (roll amount -12.1168 degrees)
092/02:45:25 Slew complete
092/02:44:25 MODIS data collection begins
092/02:50:55 MODIS data collection ends and return slew begins
092/02:59:21 Return slew completed
092/03:04:21 Spacecraft back in fine point mode
092/03:05:00 AIRS back 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) Drag make up burn in early or mid-April. The date is still TBD.
Subject: AIRS Operations Status Report for April 8, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, April 8 2004 (the end of week 101 of the Aqua mission). The weekly report is being issued one day early this week, because I will not be in the office on April 9.
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week. The next drag make up burn and the next MODIS lunar calibration roll maneuver have been scheduled. 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) Drag make up burn #15 has been scheduled for Wednesday, April 21. No detailed
timeline is available at this time.
(2) The next MODIS lunar calibration roll maneuver will take place on Friday,
April 30. The roll amount will be -7 degrees. The detailed timeline is not yet
available.
Subject: AIRS Operations Status Report for April 15, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, April 15 2004 (the end of week 102 of the Aqua mission). The weekly report is being issued one day early this week (again), because I will not be in the office on April 16.
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
The next drag make up burn will take place on Wednesday, April 21. The planned burn duration is 34 seconds. A detailed timeline can be found in "Upcoming events" below.
The next MODIS lunar calibration roll is scheduled for Friday, April 30. The detailed timeline is not yet available.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) Drag make up burn #15 has been scheduled for Wednesday, April 21. Here is the
detailed timeline (all times UT):
112/14:44:00 AIRS put into READY mode
112/14:44:03 Time-delayed command queue cleared (DC restores stopped)
112/14:44:06 Restart periodic read back of the focal plane temperature
112/14:44:10 AIRS scanner begins parking
__________________________________________________________________________________
112/14:46:00 Spacecraft slew out begins
112/15:49:00 Burn begins (duration 34 seconds)
112/16:25:00 Spacecraft return slew begins
112/16:40:00 Spacecraft back in fine point mode
__________________________________________________________________________________
112/17:30:00 AIRS scanner commanded back to scan mode
112/17:31:45 Periodic DC restores restarted
112/17:31:48 AIRS back in OPERATE mode
(2) The next MODIS lunar calibration roll maneuver will take place on Friday,
April 30. The roll amount will be -7 degrees. The detailed timeline is not yet
available.
Subject: AIRS Operations Status Report for April 23, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, April 23 2004 (the end of week 103 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There was a successful drag make up burn on Wednesday, April 21. The burn duration was 27 seconds. Here is the detailed timeline (all times UT):
112/14:44:00 AIRS put into READY mode
112/14:44:03 Time-delayed command queue cleared (DC restores stopped)
112/14:44:06 Restart periodic read back of the focal plane temperature
112/14:44:10 AIRS scanner began parking
__________________________________________________________________________________
112/14:46:00 Spacecraft slew out began
112/15:49:00 Burn begins (duration 27.25 seconds)
112/16:25:00 Spacecraft return slew began
112/16:40:00 Spacecraft back in fine point mode
__________________________________________________________________________________
112/17:30:00 AIRS scanner commanded back to scan mode
112/17:31:45 Periodic DC restores restarted
112/17:31:48 AIRS back in OPERATE mode
The next MODIS lunar calibration roll is scheduled for Friday, April 30. The detailed timeline can be found 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) The next MODIS lunar calibration roll maneuver will take place on Friday,
April 30. The roll amount will be -7 degrees. Here is the detailed timeline
(all times UT):
121/11:19:10 AIRS Guard Test begins (AIRS in CHECKOUT mode)
121/11:47:00 AIRS put into OPERATE mode (Guard Test complete)
121/17:04:00 AIRS put into READY mode
121/17:04:14 Slew begins (roll amount -6.9795 degrees)
121/17:10:38 Slew complete
121/17:12:38 MODIS data collection begins
121/17:19:08 MODIS data collection ends and return slew begins
121/17:25:32 Return slew completed
121/17:30:32 Spacecraft back in fine point mode
121/17:31:00 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for April 30, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, April 30 2004 (the end of week 104 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There was a successful MODIS lunar calibration roll maneuver today. The roll amount was -7 degrees. Here is the detailed timeline (all times UT):
121/11:19:10 AIRS Guard Test begins (AIRS in CHECKOUT mode)
121/11:47:00 AIRS put into OPERATE mode (Guard Test complete)
121/17:04:00 AIRS put into READY mode
121/17:04:14 Slew begins (roll amount -6.9795 degrees)
121/17:10:38 Slew complete
121/17:12:38 MODIS data collection begins
121/17:19:08 MODIS data collection ends and return slew begins
121/17:25:32 Return slew completed
121/17:30:32 Spacecraft back in fine point mode
121/17:31:00 AIRS back 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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 7, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, May 7 2004 (the end of week 105 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A MODIS lunar calibration roll maneuver is scheduled for Sunday, May 30.
The detailed timeline is not available yet.
(2) The next drag make up burn (#16) is planned for Wednesday, June 9. The detailed
timeline is not available at this time.
Subject: AIRS Operations Status Report for May 14, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, May 14 2004 (the end of week 106 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A MODIS lunar calibration roll maneuver is scheduled for Sunday, May 30.
The detailed timeline is not available yet.
(2) The next drag make up burn (#16) is planned for Wednesday, June 9. The detailed
timeline is not available at this time.
Subject: AIRS Operations Status Report for May 21, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, May 21 2004 (the end of week 107 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
Because of lower than forecast solar activity, the drag make up burn formerly planned for June 9 has been delayed for about a month. The exact date has not been set.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A MODIS lunar calibration roll maneuver is scheduled for Sunday, May 30.
Here is the detailed timeline (all times UT):
150/23:10:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
150/23:37:00 AIRS put into OPERATE mode (Guard Test complete)
151/04:18:00 AIRS put into READY mode
_______________________________________________________________
151/04:18:28 Slew begins (roll amount -7.8218 degrees)
151/04:25:14 Slew complete
151/04:27:14 MODIS data collection begins
151/04:33:44 MODIS data collection ends and return slew begins
151/04:40:30 Return slew completed
151/04:45:30 Spacecraft back in fine point mode
_______________________________________________________________
151/04:46:00 AIRS back in OPERATE mode
Note that the above times are actually all on Saturday afternoon and evening
Pacific time (May 29).
(2) The next drag make up burn (#16) is planned for early July. The actual date
is not available at this time.
Subject: AIRS Operations Status Report for May 28, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, May 28 2004 (the end of week 108 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
Because of lower than forecast solar activity, the drag make up burn formerly planned for June 9 has been delayed for about a month. The exact date has not been set, but will be no earlier than mid-July.
A MODIS lunar calibration roll maneuver takes place over this weekend. Details are 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A MODIS lunar calibration roll maneuver is scheduled for Sunday, May 30.
Here is the detailed timeline (all times UT):
150/23:10:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
150/23:37:00 AIRS put into OPERATE mode (Guard Test complete)
151/04:18:00 AIRS put into READY mode
_______________________________________________________________
151/04:18:28 Slew begins (roll amount -7.8218 degrees)
151/04:25:14 Slew complete
151/04:27:14 MODIS data collection begins
151/04:33:44 MODIS data collection ends and return slew begins
151/04:40:30 Return slew completed
151/04:45:30 Spacecraft back in fine point mode
_______________________________________________________________
151/04:46:00 AIRS back in OPERATE mode
Note that the above times are actually all on Saturday afternoon and evening
Pacific time (May 29).
(2) The next drag make up burn (#16) is planned for mid-July. The actual date
has not been set.
Subject: AIRS Operations Status Report for June 4, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, June 4 2004 (the end of week 109 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
A MODIS lunar calibration roll maneuver and an AIRS guard test were successfully performed last weekend. Here is the detailed timeline (all times UT):
150/23:10:00 AIRS Guard Test began (AIRS in CHECKOUT mode)
150/23:37:00 AIRS back in OPERATE mode (Guard Test complete)
151/04:18:00 AIRS put into READY mode
_______________________________________________________________
151/04:18:28 Slew began (roll amount -7.8218 degrees)
151/04:25:14 Slew complete
151/04:27:14 MODIS data collection began
151/04:33:44 MODIS data collection ended and return slew began
151/04:40:30 Return slew completed
151/04:45:30 Spacecraft back in fine point mode
_______________________________________________________________
151/04:46:00 AIRS back 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) The next drag make up burn (#16) is planned for mid-July or late July.
The actual date has not been set.
Subject: AIRS Operations Status Report for June 11, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, June 11 2004 (the end of week 110 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
The next MODIS lunar calibration roll maneuver will take place on Monday, June 28. The roll amount will be -16 degrees.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A MODIS lunar calibration roll maneuver has been scheduled for Monday,
June 28. The detailed time line is not available yet.
(2) The next drag make up burn (#16) is planned for mid-July or late July.
The actual date has not been set. The date of this maneuver depends on the Aura
launch date, which is still fluid.
Subject: AIRS Operations Status Report for June 18, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, June 18 2004 (the end of week 111 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
The next MODIS lunar calibration roll maneuver will take place on Monday, June 28. The roll amount will be -16 degrees.
Because of delays in the Aura launch, it has been decided to perform a small Aqua drag make up burn this coming Tuesday, June 22. The burn duration will be only 10 seconds. The plan to do a normal burn in mid-July has been changed because, given the present schedule, that would be in the middle of critical Aura post-launch operations. The detailed timeline for next week's maneuver is in the "Upcoming events" section 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) The next drag make up burn (#16) will be on Tuesday, June 22. Here is the
timeline (all times UT):
174/19:05:00 AIRS put in READY mode
174/19:05:03 AIRS time-delayed command queue cleared
174/19:05:06 Restart periodic focal plane temperature read back
174/19:05:10 AIRS scanner begins parking
174/19:07:00 Slew out in yaw begins
174/20:46:00 Burn begins (duration 10 seconds)
174/21:00:00 Slew back to nominal attitude begins
174/21:15:00 Spacecraft back in fine point mode
174/22:30:00 AIRS scanner commanded to resume scanning
174/22:31:45 Periodic DC restores restarted
174/22:31:48 AIRS back in OPERATE mode
(2) A MODIS lunar calibration roll maneuver has been scheduled for Monday,
June 28. The detailed time line is not available yet.
Subject: AIRS Operations Status Report for June 25, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, June 25 2004 (the end of week 112 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There was a drag make up burn on Tuesday, June 22. Here is the detailed timeline (all times UT):
174/19:05:00 AIRS put in READY mode
174/19:05:03 AIRS time-delayed command queue cleared
174/19:05:06 Restarted periodic focal plane temperature read back
174/19:05:10 AIRS scanner began parking
174/19:07:00 Slew out in yaw began
174/20:46:00 Burn began (duration 10 seconds)
174/21:00:00 Slew back to nominal attitude began
174/21:15:00 Spacecraft back in fine point mode
174/22:30:00 AIRS scanner commanded to resume scanning
174/22:31:45 Periodic DC restores restarted
174/22:31:48 AIRS back in OPERATE mode
The next MODIS lunar calibration roll maneuver will take place on Monday, June 28. The roll amount will be -16 degrees.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A MODIS lunar calibration roll maneuver has been scheduled for Monday,
June 28. Here is the timeline (all times UT):
180/11:01:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
180/11:28:00 AIRS put into OPERATE mode (Guard Test complete)
180/12:06:00 AIRS put into READY mode
180/12:06:47 Slew begins (roll amount -16.0286 degrees)
180/12:06:28 Slew complete
180/12:18:28 MODIS data collection begins
180/12:24:58 MODIS data collection ends and return slew begins
180/12:34:39 Return slew completed
180/12:39:39 Spacecraft back in fine point mode
180/12:40:00 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for July 2, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, July 2 2004 (the end of week 113 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
A major forest fire in Alaska has damaged the Poker Flats ground station, which is one of the primary stations used by Aqua and will be used by Aura. The full extent of the damage is not yet known, so there is no estimate of when the station will be back in operation. Aqua has not lost any data due to this situation. We are not expected to lose any, at least until the Aura launch. A NOAA station at Gilmore Creek (Alaska) is being used as a backup while Poker Flats is down.
There was a MODIS lunar calibration roll maneuver on Monday, June 28. The roll amount was -16 degrees. Here is the detailed timeline (all times UT):
180/11:01:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
180/11:28:00 AIRS put into OPERATE mode (Guard Test complete)
180/12:06:00 AIRS put into READY mode
180/12:06:47 Slew begins (roll amount -16.0286 degrees)
180/12:06:28 Slew complete
180/12:18:28 MODIS data collection begins
180/12:24:58 MODIS data collection ends and return slew begins
180/12:34:39 Return slew completed
180/12:39:39 Spacecraft back in fine point mode
180/12:40:00 AIRS back 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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 July 9, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, July 9 2004 (the end of week 114 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
The fire damage to the Poker Flats ground station is still being ascertained. At this point we have not received any information pointing towards expected data outages for Aqua.
The Aura launch, currently scheduled for 03:02 a.m. PDT on Sunday, July 11, will block near-real-time visibility into Aqua engineering telemetry from 12 hours before until 6 hours after launch, but should otherwise not affect Aqua 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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 July 16, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, July 16 2004 (the end of week 115 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week. All non-essential Aqua operations tasks are on hold while the FOT supports Aura launch and immediate post-launch operations.
Congratulations to everyone involved in Aura on the successful launch yesterday, July 15!!!
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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:
A series of Aqua orbital inclination adjustments is scheduled to begin in September. More details will be available in future reports.
Subject: AIRS Operations Status Report for July 23, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, July 23 2004 (the end of week 116 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week. All non-essential Aqua operations tasks are on hold while the FOT supports Aura launch and immediate post-launch operations.
No MODIS lunar calibration roll maneuvers are planned until October. Spacecraft attitude constraints forbid the large rolls which would be required during the next few months.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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:
A series of Aqua orbital inclination adjustments is scheduled to begin in September. More details will be available in future reports.
Subject: AIRS Operations Status Report for July 30, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, July 30 2004 (the end of week 117 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
No MODIS lunar calibration roll maneuvers are planned until October. Spacecraft attitude constraints forbid the large rolls which would be required during the next few months.
There will be a drag make up burn (DMUM #17) next Thursday, August 5. The burn time will be 21 seconds. The detailed timeline 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) Drag make up maneuver #17 on Thursday, August 5. Here is the detailed timeline
(all times UT):
218/09:44:00 AIRS put in READY mode
218/09:44:03 AIRS time-delayed command queue cleared
218/09:44:06 Restart periodic focal plane temperature read back
218/09:44:10 AIRS scanner begins parking
218/09:46:00 Slew out in yaw begins
218/10:31:46 Burn begins (duration 21 seconds)
218/11:21:00 Slew back to nominal attitude begins
218/11:36:00 Spacecraft back in fine point mode
218/12:12:00 AIRS scanner commanded to resume scanning
218/12:13:45 Periodic DC Restores restarted
218/12:13:48 AIRS back in OPERATE mode
2) A series of five Aqua orbital inclination adjustments is scheduled on
consecutive Tuesdays in September and October. The presently-planned dates
are: September 14, 21, and 28; October 5 and 12. More details will be available
in future reports.
Subject: AIRS Operations Status Report for August 6, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, August 6 2004 (the end of week 118 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There was a successful drag make up burn on Thursday, August 5. Here is the detailed timeline (all times UT):
218/09:44:00 AIRS put in READY mode
218/09:44:03 AIRS time-delayed command queue cleared
218/09:44:06 Restart periodic focal plane temperature read back
218/09:44:10 AIRS scanner began parking
218/09:46:00 Slew out in yaw began
218/10:31:46 Burn began (duration 21 seconds)
218/11:21:00 Slew back to nominal attitude began
218/11:36:00 Spacecraft back in fine point mode
218/12:12:00 AIRS scanner commanded to resume scanning
218/12:13:45 Periodic DC Restores restarted
218/12:13:48 AIRS back in OPERATE mode
No MODIS lunar calibration roll maneuvers are planned until October. Spacecraft attitude constraints forbid the large rolls which would be required during the next few months.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A series of five Aqua orbital inclination adjustments is scheduled on
consecutive Tuesdays in September and October. The presently-planned dates
are: September 14, 21, and 28; October 5 and 12. More details will be available
in future reports.
Subject: AIRS Operations Status Report for August 13, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, August 13 2004 (the end of week 119 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
No MODIS lunar calibration roll maneuvers are planned until October. Spacecraft attitude constraints forbid the large rolls which would be required during the next few months.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A series of five Aqua orbital inclination adjustments is scheduled on
consecutive Tuesdays in September and October. The presently-planned dates
are: September 14, 21, and 28; October 5 and 12. More details will be available
in future reports.
Subject: AIRS Operations Status Report for August 20, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, August 20 2004 (the end of week 120 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
Next week's status report will not come out until August 30 because I will be on travel from August 23-30.
No MODIS lunar calibration roll maneuvers are planned until October. Spacecraft attitude constraints forbid the large rolls which would be required during the next few months.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A series of five Aqua orbital inclination adjustments is scheduled on
consecutive Tuesdays in September and October. The presently-planned dates
are: September 14, 21, and 28; October 5 and 12. More details will be available
in future reports.
Subject: AIRS Operations Status Report for August 27, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, August 27 2004 (the end of week 121 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
No MODIS lunar calibration roll maneuvers are planned until October. Spacecraft attitude constraints forbid the large rolls which would be required during the next few months.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A series of five Aqua orbital inclination adjustments is scheduled on
consecutive Tuesdays in September and October. The presently-planned dates
are: September 14, 21, and 28; October 5 and 12. More details will be available
in future reports.
Subject: AIRS Operations Status Report for September 3, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, September 3, 2004 (the end of week 122 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
A set of photometric calibrator runs will be performed this Monday, September 6 (UT). The detailed timeline can be found in "Upcoming events" below.
No MODIS lunar calibration roll maneuvers are planned until October. Spacecraft attitude constraints forbid the large rolls which would be required during the next few months.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) The photometric calibration lamps will be turned on this Monday. Each of the three
lamps will be on for 8 minutes twice, once during spacecraft day and once during
spacecraft night. Here is the detailed timeline (all times UT):
250/05:38:31 Photocal Lamp 1 On (S/C day)
250/05:46:31 Photocal Lamps Off (S/C day)
250/06:27:58 Photocal Lamp 1 On (S/C night)
250/06:35:58 Photocal Lamps Off (S/C night)
250/07:17:24 Photocal Lamp 2 On (S/C day)
250/07:25:24 Photocal Lamps Off (S/C day)
250/08:06:51 Photocal Lamp 2 On (S/C night
250/08:14:51 Photocal Lamps Off (S/C night)
250/08:56:17 Photocal Lamp 3 On (S/C day)
250/09:04:17 Photocal Lamps Off (S/C day)
250/09:45:43 Photocal Lamp 3 On (S/C night)
250/09:53:43 Photocal Lamps Off (S/C night)
2) A series of five Aqua orbital inclination adjustments is scheduled on
consecutive Tuesdays in September and October. The planned dates
are: September 14, 21, and 28; October 5 and 12. More details will be available
in future reports.
Subject: AIRS Operations Status Report for September 10, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, September 10, 2004 (the end of week 123 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
On Monday, September 6, a set of photometric calibrations was run. Each of the three lamps was turned on for eight minutes two times. One time was during spacecraft day. The other was during spacecraft night. Here is the detailed timeline (all times UT):
250/05:38:31 Photocal Lamp 1 On (S/C day)
250/05:46:31 Photocal Lamps Off (S/C day)
250/06:27:58 Photocal Lamp 1 On (S/C night)
250/06:35:58 Photocal Lamps Off (S/C night)
250/07:17:24 Photocal Lamp 2 On (S/C day)
250/07:25:24 Photocal Lamps Off (S/C day)
250/08:06:51 Photocal Lamp 2 On (S/C night
250/08:14:51 Photocal Lamps Off (S/C night)
250/08:56:17 Photocal Lamp 3 On (S/C day)
250/09:04:17 Photocal Lamps Off (S/C day)
250/09:45:43 Photocal Lamp 3 On (S/C night)
250/09:53:43 Photocal Lamps Off (S/C night)
This coming Tuesday, September 14, the first of five Aqua orbital inclination adjustment maneuvers will take place. There will be one such maneuver every Tuesday from now until (and including) October 12. The timeline can be found in "Upcoming events" below. These maneuvers all involve a large yaw done using thrusters, followed by a burn of approximately 10 minutes duration, followed by a yaw back to nominal attitude (again using thrusters).
No MODIS lunar calibration roll maneuvers are planned until October. Spacecraft attitude constraints forbid the large rolls which would be required before then.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A series of five Aqua orbital inclination adjustments is scheduled on
consecutive Tuesdays in September and October. The planned dates
are: September 14, 21, and 28; October 5 and 12. Here is the detailed timeline
for the September 14 maneuver (all times UT):
258/15:15:00 AIRS to READY mode
258/15:15:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
258/15:15:10 Periodic read back of the focal plane temperature re-started
258/15:15:15 AIRS scanner parking begins
258/15:18:11 Begin slew-out on thrusters
258/15:28:06 Start 550-second Delta-I burn
258/15:37:16 End of burn
258/15:37:47 Begin slew-back on thrusters
258/15:49:32 Slew-back complete
258/17:20:00 AIRS scanner begins returning to normal scanning
258/17:21:35 Periodic DC restores re-started
258/17:21:40 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for September 17, 2004---Corrected
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, September 17, 2004 (the end of week 124 of the Aqua mission).
This report corrects an error in the one sent out a few minutes ago. I forgot to paste in the times of the September 14 activities, and inadvertently left in the photocal lamp activation times from last week's report. Thanks to Steve Broberg for catching this so quickly!
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
On Tuesday, September 14, there was a successful Aqua orbital inclination adjustment maneuver. This was the first of five such adjustments planned for consecutive Tuesdays. Here is the detailed timeline for the maneuver of September 14 (all times UT):
258/15:15:00 AIRS to READY mode
258/15:15:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
258/15:15:10 Periodic read back of the focal plane temperature re-started
258/15:15:15 AIRS scanner parking begins
258/15:18:11 Begin slew-out on thrusters
258/15:28:06 Start 550-second Delta-I burn
258/15:37:16 End of burn
258/15:37:47 Begin slew-back on thrusters
258/15:49:32 Slew-back complete
258/17:20:00 AIRS scanner begins returning to normal scanning
258/17:21:35 Periodic DC restores re-started
258/17:21:40 AIRS back in OPERATE mode
The second inclination adjustment of this series will take place this coming Tuesday, September 21. 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A series of five Aqua orbital inclination adjustments on consecutive
Tuesdays in September and October is in progress. These maneuvers are labeled
#3, #4, #5, #6, and #7, since there were two during 2003. The planned dates
are: September 14, 21, and 28; October 5 and 12. Here is the detailed timeline
for DIM (delta inclination maneuver) #4 on September 21 (all times UT):
265/15:15:00 AIRS to READY mode
265/15:15:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
265/15:15:10 Periodic read back of the focal plane temperature re-started
265/15:15:15 AIRS scanner parking begins
265/15:23:36 Begin slew-out on thrusters
265/15:33:31 Start 550-second Delta-I burn
265/15:42:41 End of burn
265/15:43:11 Begin slew-back on thrusters
265/15:54:56 Slew-back complete
265/17:40:00 AIRS scanner begins returning to normal scanning
265/17:41:35 Periodic DC restores re-started
265/17:41:40 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for September 24, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, September 24, 2004 (the end of week 125 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
On Tuesday, September 21, there was a successful Aqua orbital inclination adjustment maneuver. This was the second of five such adjustments planned for consecutive Tuesdays. Here is the detailed timeline for the maneuver of September 21 (all times UT):
265/15:15:00 AIRS to READY mode
265/15:15:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
265/15:15:10 Periodic read back of the focal plane temperature re-started
265/15:15:15 AIRS scanner parking begins
265/15:23:36 Begin slew-out on thrusters
265/15:33:31 Start 550-second Delta-I burn
265/15:42:41 End of burn
265/15:43:11 Begin slew-back on thrusters
265/15:54:56 Slew-back complete
265/17:40:00 AIRS scanner begins returning to normal scanning
265/17:41:35 Periodic DC restores re-started
265/17:41:40 AIRS back in OPERATE mode
The third inclination adjustment of this series will take place this coming Tuesday, September 28. 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A series of five Aqua orbital inclination adjustments on consecutive
Tuesdays in September and October is in progress. These maneuvers are labeled
#3, #4, #5, #6, and #7, since there were two during 2003. The planned dates
are: September 14, 21, and 28; October 5 and 12. Here is the detailed timeline
for DIM #5 on September 28 (all times UT):
272/15:25:00 AIRS to READY mode
272/15:25:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
272/15:25:10 Periodic read back of the focal plane temperature re-started
272/15:25:15 AIRS scanner parking begins
272/15:28:59 Begin slew-out on thrusters
272/15:38:54 Start 550-second Delta-I burn
272/15:48:04 End of burn
272/15:48:34 Begin slew-back on thrusters
272/16:00:19 Slew-back complete
272/17:45:00 AIRS scanner begins returning to normal scanning
272/17:46:35 Periodic DC restores re-started
272/17:46:40 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for October 1, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, October 1, 2004 (the end of week 126 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
On Tuesday, September 28, there was a successful Aqua orbital inclination adjustment maneuver. This was the third of five such adjustments planned for consecutive Tuesdays. Here is the detailed timeline for the maneuver of September 28 (all times UT):
272/15:25:00 AIRS to READY mode
272/15:25:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
272/15:25:10 Periodic read back of the focal plane temperature re-started
272/15:25:15 AIRS scanner parking begins
272/15:28:59 Begin slew-out on thrusters
272/15:38:54 Start 550-second Delta-I burn
272/15:48:04 End of burn
272/15:48:34 Begin slew-back on thrusters
272/16:00:19 Slew-back complete
272/17:45:00 AIRS scanner begins returning to normal scanning
272/17:46:35 Periodic DC restores re-started
272/17:46:40 AIRS back in OPERATE mode
The fourth inclination adjustment of this series will take place this coming Tuesday, October 5. 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) A series of five Aqua orbital inclination adjustments on consecutive
Tuesdays in September and October is in progress. These maneuvers are labeled
#3, #4, #5, #6, and #7, since there were two during 2003. The planned dates
are: September 14, 21, and 28; October 5 and 12. Here is the detailed timeline
for DIM #6 on October 5 (all times UT):
279/15:30:00 AIRS to READY mode
279/15:30:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
279/15:30:10 Periodic read back of the focal plane temperature re-started
279/15:30:15 AIRS scanner parking begins
279/15:34:22 Begin slew-out on thrusters
279/15:44:17 Start 550-second Delta-I burn
279/15:53:27 End of burn
279/15:53:57 Begin slew-back on thrusters
279/16:05:42 Slew-back complete
279/17:46:00 AIRS scanner begins returning to normal scanning
279/17:47:35 Periodic DC restores re-started
279/17:47:40 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for October 8, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, October 8, 2004 (the end of week 127 of the Aqua mission). It is being sent out one day early because I will be out of the office on October 8.
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
On Tuesday, October 5, there was a successful Aqua orbital inclination adjustment maneuver. This was the fourth of five such adjustments planned for consecutive Tuesdays. Here is the detailed timeline for the maneuver of October 5 (all times UT):
279/15:30:00 AIRS to READY mode
279/15:30:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
279/15:30:10 Periodic read back of the focal plane temperature re-started
279/15:30:15 AIRS scanner parking begins
279/15:34:22 Begin slew-out on thrusters
279/15:44:17 Start 550-second Delta-I burn
279/15:53:27 End of burn
279/15:53:57 Begin slew-back on thrusters
279/16:05:42 Slew-back complete
279/17:46:00 AIRS scanner begins returning to normal scanning
279/17:47:35 Periodic DC restores re-started
279/17:47:40 AIRS back in OPERATE mode
The fifth and last inclination adjustment of this series will take place this coming Tuesday, October 12. The detailed timeline is in "Upcoming events" below. Assuming the success of the upcoming maneuver, and assuming the success of the related Aura maneuvers, it is estimated that no further orbital adjustments will be required for three years.
We will be performing photometric calibrations for the Vis/NIR channels monthly for the next few months. The next such activity will be on October 10. The detailed timeline is in "Upcoming events" below.
The monthly MODIS lunar calibration roll maneuvers will be resumed starting on October 23. The detailed timeline is not available at this 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) We will perform another photometric calibration activity on Sunday, October 10.
Each of the three lamps will be turned on twice for eight minutes each time---once
during spacecraft night and once during spacecraft day. Here is the detailed
timeline (all times UT):
284/05:22:00 Photocal Lamp 1 On (S/C day)
284/05:30:00 Photocal Lamps Off (S/C day)
284/06:11:30 Photocal Lamp 1 On (S/C night)
284/06:19:30 Photocal Lamps Off (S/C night)
284/07:01:00 Photocal Lamp 2 On (S/C day)
284/07:09:00 Photocal Lamps Off (S/C day)
284/07:50:30 Photocal Lamp 2 On (S/C night
284/07:58:30 Photocal Lamps Off (S/C night)
284/08:40:00 Photocal Lamp 3 On (S/C day)
284/08:48:00 Photocal Lamps Off (S/C day)
284/09:29:30 Photocal Lamp 3 On (S/C night)
284/09:37:30 Photocal Lamps Off (S/C night)
2) A series of five Aqua orbital inclination adjustments on consecutive
Tuesdays in September and October is in progress. These maneuvers are labeled
#3, #4, #5, #6, and #7, since there were two during 2003. The dates
are: September 14, 21, and 28; October 5 and 12. Here is the detailed timeline
for DIM #7 on October 12 (all times UT):
286/15:36:00 AIRS to READY mode
286/15:36:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
286/15:36:10 Periodic read back of the focal plane temperature re-started
286/15:36:15 AIRS scanner parking begins
286/15:39:46 Begin slew-out on thrusters
286/15:49:41 Start 550-second Delta-I burn
286/15:58:51 End of burn
286/15:59:21 Begin slew-back on thrusters
286/16:11:06 Slew-back complete
286/17:54:00 AIRS scanner begins returning to normal scanning
286/17:55:35 Periodic DC restores re-started
286/17:55:40 AIRS back in OPERATE mode
3) There will be a MODIS lunar calibration roll maneuver on October 23. No detailed times
are available yet. As usual, an AIRS guard test will be performed on the same day as
the maneuver
Subject: AIRS Operations Status Report for October 15, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, October 15, 2004 (the end of week 128 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
On Sunday, October 10, a photometric calibration sequence was run (for the Vis/NIR channels). Each of the three lamps was turned on two times for 8 minutes each time---once during spacecraft day and once at night. Here is the detailed timeline (all times UT):
284/05:22:00 Photocal Lamp 1 On (S/C day)
284/05:30:00 Photocal Lamps Off (S/C day)
284/06:11:30 Photocal Lamp 1 On (S/C night)
284/06:19:30 Photocal Lamps Off (S/C night)
284/07:01:00 Photocal Lamp 2 On (S/C day)
284/07:09:00 Photocal Lamps Off (S/C day)
284/07:50:30 Photocal Lamp 2 On (S/C night
284/07:58:30 Photocal Lamps Off (S/C night)
284/08:40:00 Photocal Lamp 3 On (S/C day)
284/08:48:00 Photocal Lamps Off (S/C day)
284/09:29:30 Photocal Lamp 3 On (S/C night)
284/09:37:30 Photocal Lamps Off (S/C night)
On Tuesday, October 12, there was a successful Aqua orbital inclination adjustment maneuver. This was the last of five such adjustments in recent weeks. It is expected that there will be no more orbital adjustment maneuvers for about three years. Here is the detailed timeline for the maneuver of October 12 (all times UT):
286/15:36:00 AIRS to READY mode
286/15:36:05 Periodic DC Restores halted by clearing AIRS' time-delayed queue
286/15:36:10 Periodic read back of the focal plane temperature re-started
286/15:36:15 AIRS scanner parking begins
286/15:39:46 Begin slew-out on thrusters
286/15:49:41 Start 550-second Delta-I burn
286/15:58:51 End of burn
286/15:59:21 Begin slew-back on thrusters
286/16:11:06 Slew-back complete
286/17:54:00 AIRS scanner begins returning to normal scanning
286/17:55:35 Periodic DC restores re-started
286/17:55:40 AIRS back in OPERATE mode
The monthly MODIS lunar calibration roll maneuvers will be resumed starting on Saturday October 23. The maneuver will begin on 297/22:13:02 UT and end at 297/22:46:18. The detailed timeline, including an AIRS guard test on the same day, will appear in next week's report.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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 a MODIS lunar calibration roll maneuver on October 23. As usual, an AIRS
guard test will be performed on the same day.
Subject: AIRS Operations Status Report for October 22, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, October 22, 2004 (the end of week 129 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There were no instrument activities this past week.
A MODIS lunar calibration roll maneuver will take place tomorrow, October 23. See "Upcoming events" below for details.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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 a MODIS lunar calibration roll maneuver on October 23. Here is the detailed
timeline (all times UT):
297/20:25:35 AIRS Guard Test begins (AIRS in CHECKOUT mode)
297/20:51:00 AIRS put into OPERATE mode (Guard Test complete)
297/22:12:00 AIRS put into READY mode
297/22:13:02 Slew begins (roll amount -16.6865 degrees)
297/22:22:55 Slew complete
297/22:24:55 MODIS data collection begins
297/22:31:25 MODIS data collection ends and return slew begins
297/22:41:18 Return slew completed
297/22:46:18 Spacecraft back in fine point mode
297/22:47:00 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for October 29, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, October 29, 2004 (the end of week 130 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
There was a MODIS lunar calibration roll maneuver last Saturday, October 23. As usual, we performed an AIRS guard test on the same day. Here is the detailed timeline (all times UT):
297/20:25:35 AIRS Guard Test begins (AIRS in CHECKOUT mode)
297/20:51:00 AIRS put into OPERATE mode (Guard Test complete)
297/22:12:00 AIRS put into READY mode
297/22:13:02 Slew begins (roll amount -16.6865 degrees)
297/22:22:55 Slew complete
297/22:24:55 MODIS data collection begins
297/22:31:25 MODIS data collection ends and return slew begins
297/22:41:18 Return slew completed
297/22:46:18 Spacecraft back in fine point mode
297/22:47:00 AIRS back 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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 November 5, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, November 5, 2004 (the end of week 131 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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 (Interim) for November 7, 2004
This is an interim AIRS/AMSU-A/HSB operations status report for
Sunday, November 7, 2004. At approximately 312/05:08:53 UT (shortly
after 9:00 pm Pacific time on Saturday) the AIRS scanner went into
idle mode, pointed at the index position about 11 degrees off nadir.
(All times below are UT.)
The Aqua FOT discovered the problem at the start of the next pass at
312/06:11:53 and contacted the AIRS IOT. We recommended that they
put AIRS into READY mode as soon as possible. Because of spacecraft
contact limitations, the procedural safeguards in place which control
instrument commanding, and because the problem occurred in the wee
hours of a Sunday morning, the command to place AIRS into READY mode
did not actually get sent until 312/09:30. This means that there are
approximately 4 hours and 22 minutes of data which are definitely not
useful for Level 2 processing but which are not labeled as such in
the data. Data prior to the anomaly may or may not be valid.
We had also recommended that the FOT run the procedure which commands
the scanner into idle mode, in order to try to put the scanner into a
known state. That procedure was run immediately after AIRS was put
into READY mode. A strongly encouraging sign is that the instrument
obeyed all commands in that procedure. One of the commands moves the
scanner to the on-board calibrator. The scanner is still parked at
the OBC at this time. The periodic DC Restore operations were stopped
at 17:42.
The rest of the instrument continues to operate normally. The coolers
continue to maintain the focal plane temperature at the desired
level, and the choke point heater is doing the same for the
spectrometer.
The circumstances of this anomaly are now under investigation. We
know that the spacecraft was at approximately 187 W longitude and +14
latitude. Plots of scan motor current, voltage, and temperature are
being prepared and will be examined as soon as they are produced.
Subject: AIRS Operations Status Report (Interim #2) for November 7, 2004
The AIRS scanner is back in operation. The instrument was placed back
in OPERATE mode at approximately 313/00:15 UT (4:15 pm Sunday
November 7 Pacific time).
Our working hypothesis is that the anomaly was due to a radiation
event in the scanner electronics. The reasoning is as follows:
1) There is a strong active region on the sun which, according to
the ACE spacecraft, was expected to send a shock wave past earth in
the early hours of November 7. That was the time of the anomaly.
2) There was nothing at all unusual about the telemetry prior to
the time the scanner mode changed. The scan motor current, voltage,
and all scanner-related temperatures were normal immediately prior to
the incident.
3) Scanner telemetry in the hours following the event was normal
given the scanner mode at the time.
4) The scanner had successfully responded to all commands in the
AIR_SCANNER_IDLE_XXX proc which had been run during the night. Its
movement from the index position near -11 degrees to the OBC near 180
degrees proved that there was no mechanical obstruction.
The scanner was restarted at approximately 312/21:45 UT (1:45 pm
Pacific time). We monitored it for a few hours before returning to
OPERATE mode.
At the time of writing this report everything on AIRS appears to be
normal. Many thanks to the Aqua FOT operations controllers, FOT
management, and to the Aqua offline instrument engineer (Don Haxton)
for their help during this incident. We will continue to analyze this
event and (hopefully) confirm the radiation theory.
A more detailed timeline of today's events will be in a third interim
status report to be issued Monday, November 8.
Subject: AIRS Operations Status Report (interim) for November 8, 2004
This is an AIRS, AMSU-A, and HSB interim operations status report for Monday, November 8, 2004 (the middle of week 132 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations. The AIRS scanner is operating normally.
Here is a timeline of the events of this past weekend (all times UT). Day 312 is Sunday, November 7.
312/05:08:35 The AIRS scanner puts itself into idle mode, parked at its index position (scan angle near -11 degrees
where 0 is nadir). There was no spacecraft contact at this time.
312/06:11:53 The Aqua Flight Operations Team (FOT) sees that the scanner is in idle mode at the start of the
first ground station contact after the event.
312/09:27:17 AIRS put into READY mode (no hardware change---data now marked as "not for routine processing")
312/09:28:18 The AIRS procedure to move the scanner to the on-board calibrator (scan angle 180) and go into
idle mode was started. All commands were obeyed without error and the scanner moved to the OBC.
312/17:46:21 DC Restore operations halted
312/21:30:00 The procedure to put the AIRS scanner back into normal scan mode was started. The restart was
successful.
312/21:34:16 DC Restore operations were resumed.
313/00:14:08 AIRS put back into OPERATE mode.
Data from the time of the incident until READY mode was commanded are marked as good when in fact they are not good. Based on analysis of engineering telemetry we believe data up to the onset of the incident are all valid.
There will be an AIRS anomaly team formed to study what took place. For now, we believe the cause was a radiation hit in the scanner electronics. There were no abnormalities in the scanner telemetry prior to its stopping. All subsequent commands have been obeyed without any problems. All scanner telemetry has been normal since the incident. The current was at zero while it was parked, so the scanner was truly idle and not jammed.
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 (Version GNC130 uploaded on November 18 and activated on
November 19, 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:
Patch version 11 loaded
Macro 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.
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 Nov 10---Correction to Nov 8 Report
This is an AIRS, AMSU-A, and HSB interim operations status report for Wednesday, November 10, 2004 (the middle of week 132 of the Aqua mission). The purpose is to correct one item in the November 8 report. The scan angle at which the AIRS scanner unexpectedly parked was actually +48.57 degrees, not -11 degrees as originally reported. The value of -11 was obtained by telephone from the operations controller at the EOS operations center. That person apparently misinterpreted the AIRS scanner status display. By the time the AIRS IOT arrived at JPL and checked scanner status, the procedure to move the scanner to the on-board calibrator had already run successfully. Once all the telemetry data was available at JPL for inspection, the discrepancy was discovered.
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations. The AIRS scanner is operating normally.
Here is a corrected timeline of the events of this past weekend (all times UT). Day 312 is Sunday, November 7.
312/05:08:35 The AIRS scanner puts itself into idle mode, parked at a scan angle of +48.57 degrees. That position is
near the last scene footprint in a scan. There was no spacecraft contact at this time.
312/06:11:53 The Aqua Flight Operations Team (FOT) sees that the scanner is in idle mode at the start of the
first ground station contact after the event.
312/09:27:17 AIRS put into READY mode (no hardware change---data now marked as "not for routine processing")
312/09:28:18 The AIRS procedure to move the scanner to the on-board calibrator (scan angle 180) and go into
idle mode was started. All commands were obeyed without error and the scanner moved to the OBC.
312/17:46:21 DC Restore operations halted
312/21:30:00 The procedure to put the AIRS scanner back into normal scan mode was started. The restart was
successful.
312/21:34:16 DC Restore operations were resumed.
313/00:14:08 AIRS put back into OPERATE mode.
Data from the time of the incident until READY mode was commanded are marked as good when in fact they are not good. Based on analysis of engineering telemetry we believe data up to the onset of the incident are all valid.
There will be an AIRS anomaly team formed to study what took place. For now, we think the cause was a radiation hit in the scanner electronics. There were no abnormalities in the scanner telemetry prior to its stopping. All subsequent commands have been obeyed without any problems. All scanner telemetry has been normal since the incident. The current was at zero while it was parked, so the scanner was truly idle and not jammed.
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 (Version GNC130 uploaded on November 18 and activated on
November 19, 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:
Patch version 11 loaded
Macro 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.
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 November 12, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, November 12, 2004 (the end of week 132 of the Aqua mission).
AIRS and AMSU-A remain healthy, with all voltages, currents, and temperatures as expected. Both instruments continue in routine operations.
The AIRS scanner continues to operate normally since being restarted after the scanner anomaly of November 7. For details please refer to the two interim status reports on November 7 and the report of November 10. The anomaly is under investigation. Scanner data have been sent to BAE Systems for analysis. The leading hypothesis continues to be a radiation hit affecting the scanner electronics.
A monthly photometric calibration is scheduled for Monday, November 15.
Aqua drag make up maneuver #18 will take place on Thursday, November 18.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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) Photometric calibration on Monday, November 15. Here is the detailed timeline in UT:
320/01:35:32 Photocal Lamp 1 On (S/C day)
320/01:43:32 Photocal Lamps Off (S/C day)
320/02:24:59 Photocal Lamp 1 On (S/C night)
320/02:32:59 Photocal Lamps Off (S/C night)
320/03:14:25 Photocal Lamp 2 On (S/C day)
320/03:22:25 Photocal Lamps Off (S/C day)
320/04:03:52 Photocal Lamp 2 On (S/C night
320/04:11:52 Photocal Lamps Off (S/C night)
320/04:53:17 Photocal Lamp 3 On (S/C day)
320/05:01:17 Photocal Lamps Off (S/C day)
320/05:42:44 Photocal Lamp 3 On (S/C night)
320/05:50:44 Photocal Lamps Off (S/C night)
2) Drag make up burn #18 on Thursday, November 18
323/14:30:00 AIRS put in READY mode
323/14:30:03 AIRS time-delayed command queue cleared
323/14:30:06 Restart periodic focal plane temperature read back
323/14:30:10 AIRS scanner begins parking
323/14:32:30 Slew out in yaw begins
323/15:32:02 Burn begins (duration 43.5 seconds)
323/16:10:30 Slew back to nominal attitude begins
323/16:25:30 Spacecraft back in fine point mode
323/17:15:00 AIRS scanner commanded to resume scanning
323/17:16:45 Periodic DC Restores restarted
323/17:16:50 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for November 19, 2004---AMSU-A Telemetry Anomaly
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, November 19, 2004 (the end of week 133 of the Aqua mission).
AIRS remains healthy, with all voltages, currents, and temperatures as expected. It shows no apparent effects from the scanner anomaly of November 7. Both AIRS and AMSU-A continue in routine operations. But see the next few paragraphs on a new AMSU-A2 temperature readout anomaly.
AMSU-A2 (channels 1 and 2) now has anomalous temperature telemetry. AMSU-A1 (channels 2 through 15) is fully nominal.
All temperature readings in the telemetry for AMSU-A2 other than the warm load started showing very large noise on Wednesday, November 17, at 13:21:19 UT. The change occurred suddenly and simultaneously for all twelve affected temperatures. The PRT reference voltage has the same anomalous behavior. All other AMSU-A2 telemetry is normal. Although the average temperatures read out from the affected sensors remain correct, their noise is now very large, amounting to several degrees C. It is clear that the physical temperatures on the instrument have not changed.
The root cause of this problem is under investigation, with help from Northrop Grumman Electronic Systems (formerly Aerojet), who built AMSU-A. There are two circuit boards devoted to processing the temperature measurements made by PRT's. One board handles all seven independent measurements of the warm load temperature, which strongly influences the calibration. This board remains healthy and is producing nominal telemetry. The other board handles all other temperature measurements. There are twelve sensors processed by this second board. These include temperatures of the scan motor, local oscillators, RF shelf, 1553 interface, DC to DC converter, feed horn, and others. The temperature readings for all 12 are anomalously noisy.
One of the temperatures with high noise has a small effect on the non-linearity term in the calibration. Bjorn Lambrigtsen has looked at AMSU-A brightness temperatures and calibration parameters calculated since the onset of this problem. He sees no noticeable effect on any science products.
We continue to work with NGES to determine the cause of this problem.
A monthly photometric calibration took place on Monday, November 15. Here is the detailed timeline (UT):
320/01:35:32 Photocal Lamp 1 On (S/C day)
320/01:43:32 Photocal Lamps Off (S/C day)
320/02:24:59 Photocal Lamp 1 On (S/C night)
320/02:32:59 Photocal Lamps Off (S/C night)
320/03:14:25 Photocal Lamp 2 On (S/C day)
320/03:22:25 Photocal Lamps Off (S/C day)
320/04:03:52 Photocal Lamp 2 On (S/C night
320/04:11:52 Photocal Lamps Off (S/C night)
320/04:53:17 Photocal Lamp 3 On (S/C day)
320/05:01:17 Photocal Lamps Off (S/C day)
320/05:42:44 Photocal Lamp 3 On (S/C night)
320/05:50:44 Photocal Lamps Off (S/C night)
Aqua drag make up maneuver #18 was successfully accomplished on Thursday, November 18. Here is the timeline (UT):
323/14:30:00 AIRS put in READY mode
323/14:30:03 AIRS time-delayed command queue cleared
323/14:30:06 Restart periodic focal plane temperature read back
323/14:30:10 AIRS scanner begins parking
323/14:32:30 Slew out in yaw begins
323/15:32:02 Burn begins (duration 43.5 seconds)
323/16:10:30 Slew back to nominal attitude begins
323/16:25:30 Spacecraft back in fine point mode
323/17:15:00 AIRS scanner commanded to resume scanning
323/17:16:45 Periodic DC Restores restarted
323/17:16:50 AIRS back in OPERATE mode
There will be a MODIS lunar calibration roll maneuver on Monday, November 22. See "Upcoming events" below. Actually the maneuver takes place late Sunday afternoon Pacific time. As usual, we will run an AIRS guard test prior to the maneuver.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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.
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 late Sunday Pacific time (early Monday UT). Here is the detailed timeline in UT:
326/23:10:00 AIRS Guard Test begins (AIRS in CHECKOUT mode)
326/23:37:00 AIRS put into OPERATE mode (Guard Test complete)
327/01:00:00AIRS put into READY mode
327/01:00:56 Slew begins (roll amount -4.1991 degrees)
327/01:05:54 Slew complete
327/01:07:54 MODIS data collection begins
327/01:14:24 MODIS data collection ends and return slew begins
327/01:19:22 Return slew completed
327/01:24:22 Spacecraft back in fine point mode
327/01:25:00 AIRS back in OPERATE mode
Subject: AIRS Operations Status Report for November 24, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Wednesday, November 24, 2004 (during week 134 of the Aqua mission). This report is coming out early because of the Thanksgiving holiday.
AIRS remains healthy, with all voltages, currents, and temperatures as expected. AMSU-A is basically healthy, with the exception of the AMSU-A2 temperature readout anomaly described in the November 19 report. That problem is not affecting the quality of AMSU-A science data or products. Investigation into the cause of the anomaly is continuing. Both AIRS and AMSU-A continue in routine operations.
The November 19 report had an error in the time of the onset of the anomaly. It actually started one day earlier than originally stated, at UT 13:21:19 on day 2004/321, which was Tuesday, November 16.
There was a MODIS lunar calibration roll maneuver on Monday, November 22. As usual, we ran an AIRS guard test prior to the maneuver. Here is the detailed timeline (UT):
326/23:10:00 AIRS Guard Test began (AIRS in CHECKOUT mode)
326/23:37:00 AIRS put into OPERATE mode (Guard Test complete)
327/01:00:00AIRS put into READY mode
327/01:00:56 Slew began (roll amount -4.1991 degrees)
327/01:05:54 Slew completed
327/01:07:54 MODIS data collection began
327/01:14:24 MODIS data collection ended and return slew began
327/01:19:22 Return slew completed
327/01:24:22 Spacecraft back in fine point mode
327/01:25:00 AIRS back 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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 December 3, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, December 3, 2004 (the end of week 135 of the Aqua mission).
AIRS remains healthy, with all voltages, currents, and temperatures as expected.
AMSU-A is basically healthy, with the exception of the AMSU-A2 temperature readout anomaly described in the November 19 report. That problem is not affecting the quality of AMSU-A science data or products. The noise signature for the affected temperatures has not changed since the onset of the anomaly on November 16. Investigation into the cause of the anomaly is continuing. 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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 December 10, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, December 10, 2004 (the end of week 136 of the Aqua mission).
AIRS remains healthy, with all voltages, currents, and temperatures as expected.
AMSU-A is basically healthy, with the exception of the AMSU-A2 temperature readout anomaly described in the November 19 report. The noise signature for the affected temperatures has not changed since the onset of the anomaly on November 16. Investigation into the cause of the anomaly and its effect on the science data is continuing. NGES (formerly Aerojet) believes the problem is a capacitor (or its connection) in the amplifier circuit for the reference voltage used in the temperature read out process. The anomaly was reproduced on the AMSU-A engineering model by removing that capacitor.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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 an AIRS photometric calibration on Wednesday, December 15. Here is the detailed
timeline (all times UT):
350/06:43:06 Photocal Lamp 1 On (S/C day)
350/06:51:06 Photocal Lamps Off (S/C day)
350/07:32:35 Photocal Lamp 1 On (S/C night)
350/07:40:35 Photocal Lamps Off (S/C night)
350/08:22:00 Photocal Lamp 2 On (S/C day)
350/08:30:00 Photocal Lamps Off (S/C day)
350/09:11:30 Photocal Lamp 2 On (S/C night
350/09:19:30 Photocal Lamps Off (S/C night)
350/10:00:52 Photocal Lamp 3 On (S/C day)
350/10:08:52 Photocal Lamps Off (S/C day)
350/10:50:21 Photocal Lamp 3 On (S/C night)
350/10:58:21 Photocal Lamps Off (S/C night)
2) There will be a MODIS lunar calibration roll maneuver, with accompanying AIRS guard test, on
Tuesday, December 21. The detailed timeline is not available yet.
3) Aqua drag make up burn #19 is planned for mid-January. The exact date has not been set.
Subject: AIRS Operations Status Report for December 17, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Friday, December 17, 2004 (the end of week 137 of the Aqua mission).
AIRS remains healthy, with all voltages, currents, and temperatures as expected.
AMSU-A is basically healthy, with the exception of the AMSU-A2 temperature readout anomaly described in the November 19 report. The noise signature for the affected temperatures has not changed since the onset of the anomaly on November 16. Investigation into the cause of the anomaly and its effect on the science data is continuing. NGES (formerly Aerojet) believes the problem is a capacitor (or its connection) in the amplifier circuit for the reference voltage used in the temperature read out process. The anomaly was reproduced on the AMSU-A engineering model by removing that capacitor.
Both AIRS and AMSU-A continue in routine operations.
There was an AIRS photometric calibration on Wednesday, December 15. Here is the detailed timeline (all times UT):
350/06:43:06 Photocal Lamp 1 On (S/C day)
350/06:51:06 Photocal Lamps Off (S/C day)
350/07:32:35 Photocal Lamp 1 On (S/C night)
350/07:40:35 Photocal Lamps Off (S/C night)
350/08:22:00 Photocal Lamp 2 On (S/C day)
350/08:30:00 Photocal Lamps Off (S/C day)
350/09:11:30 Photocal Lamp 2 On (S/C night
350/09:19:30 Photocal Lamps Off (S/C night)
350/10:00:52 Photocal Lamp 3 On (S/C day)
350/10:08:52 Photocal Lamps Off (S/C day)
350/10:50:21 Photocal Lamp 3 On (S/C night)
350/10:58:21 Photocal Lamps Off (S/C night)
The next MODIS lunar calibration roll maneuver takes place this coming Tuesday, December 21. See "Upcoming events" below for details.
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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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 a MODIS lunar calibration roll maneuver, with accompanying AIRS guard test, on
Tuesday, December 21. Here is the detailed timeline (all times UT).
356/11:00:40 AIRS Guard Test begins (AIRS in CHECKOUT mode)
356/11:28:00 AIRS put into OPERATE mode (Guard Test complete)
356/16:41:00AIRS put into READY mode
356/16:41:46 Slew begins (roll amount -1.4013 degrees)
356/16:44:28 Slew complete
356/16:46:38 MODIS data collection begins
356/16:53:08 MODIS data collection ends and return slew begins
356/16:56:00 Return slew completed
356/17:01:00 Spacecraft back in fine point mode
356/17:02:00 AIRS back in OPERATE mode
2) Aqua drag make up burn #19 is planned for mid-January. The exact date has not been set.
Subject: AIRS Operations Status Report for December 23, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, December 23, 2004 (week 138 of the Aqua mission).
AIRS remains healthy, with all voltages, currents, and temperatures as expected.
On December 20, at 16:14:06 UTC, a DC Restore operation, periodically performed every 20 minutes, resulted in an unexpected drop in detector readouts for numerous IR channels. The readouts remained low for the remainder for the DC Restore cycle. They returned to normal levels with the following DC Restore operation, 20 minutes later.
The cause and implications of this event are under investigation.
AMSU-A is basically healthy, with the exception of the 12 noisy AMSU-A2 temperature readings.
Both AIRS and AMSU-A continue in routine operations.
A MODIS Lunar Calibration maneuver on Tuesday, December 21, was combined with a Guard test. Here are the times in UTC:
356/11:00:40 AIRS Guard Test begins (AIRS in CHECKOUT mode)
356/11:28:00 AIRS put into OPERATE mode (Guard Test complete)
356/16:41:00 AIRS put into READY mode
356/16:41:46 Slew begins (roll amount -1.4013 degrees)
356/16:44:28 Slew complete
356/16:46:38 MODIS data collection begins
356/16:53:08 MODIS data collection ends and return slew begins
356/16:56:00 Return slew completed
356/17:01:00 Spacecraft back in fine point mode
356/17:02:00 AIRS back 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 (as of last week) loaded
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:
Patch version 11 loaded
Macro 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:
Aqua drag make up burn #19 is planned for mid-January. The exact date is not known yet.
Subject: AIRS Operations Status Report for December 30, 2004
This is the AIRS, AMSU-A, and HSB weekly operations status report for Thursday, December 30, 2004 (week 139 of the Aqua mission).
AIRS remains healthy, with all voltages, currents, and temperatures as expected. The drop in infra-red detector readouts following a DC Restore operation on December 20 has been analyzed. It has been determined that the appearance of the moon in the space view ports caused the anomalous readouts. The need for preventative measures - if any - for future occurrences of such a rare event is being investigated.
AMSU-A is basically healthy, except for the noisy temperatures reported earlier.
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 (as of last week) loaded
Radiometric calibr. 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 det. modules on
Circumvention processing on
AIRS software state:
Patch version 11 loaded
Macro 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. i
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:
Drag Makeup Burn # 19 is planned for mid-January. The timeline is not available yet