July 2001
1 July Nutation damping operations.
As a result of above unscheduled command mod. changes,
McElrath Man. with CLC enabled initiated at 182.00:49 SCET.
Nutation went from 0.31 to 0.09 deg.
182.14:03-15:04 1h 1m realtime data lost due to complex-wide power failure
at DSCC Goldstone. DR G10040 refers.
Maximum nutation 0.31 deg. half-cone.
2 July Nutation damping operations.
KEP IFC - 183.15:33 SCET.
Maximum nutation 0.16 deg. half-cone.
3 July Nutation damping operations.
KEP GAS CR#643: NG direct - 184.00:00 SCET.
BAM-I CR#649: BAM-I aperture to motor position 2 - 184.00:17 SCET.
184.06:30-06:41 DSS63, 11m realtime data lost due to keyhole.
Maximum nutation 0.25 deg. half-cone.
4 July Nutation damping operations.
HED calibration - 185.01:00 SCET.
McElrath Man. with CLC enabled initiated at 185.16:17 SCET.
Nutation went from 0.24 to 0.06 deg.
CLC wide deadband (0.23deg) selected - 185.20:55 SCET.
CLC narrow deadband (0.125deg) selected - 185.21:58 SCET.
Maximum nutation 0.28 deg. half-cone.
Independence Day Holiday at JPL.
5 July Nutation damping operations.
186.22:07-22:29 DSS63; 22m realtime data lost as antenna stowed in order to
investigate transmitter interlock problem, DR M100043 refers.
Maximum nutation 0.26 deg. half-cone.
6 July Nutation damping operations.
CLC wide deadband (0.23deg) selected - 187.16:13 SCET.
CLC narrow deadband (0.125deg) selected - 187.17:13 SCET.
Maximum nutation 0.27 deg. half-cone.
7 July Nutation damping operations.
Maximum nutation 0.25 deg. half-cone.
8 July Nutation damping operations.
Maximum nutation 0.22 deg. half-cone.
9 July Nutation damping operations.
CLC wide deadband (0.23deg) selected - 190.01:14 SCET.
CLC narrow deadband (0.125deg) selected - 190.01:51 SCET.
KEP IFC - 190.15:27 SCET.
CLC wide deadband (0.23deg) selected - 190.17:33 SCET.
GAS CR#644: FSS UV mode Part 1 - 190.20:00 SCET.
CLC off - 190.21:16 SCET.
CLC wide deadband (0.23deg) selected - 190.22:34 SCET.
CLC narrow deadband (0.125deg) selected - 190.23:52 SCET.
Maximum nutation 0.28 deg. half-cone.
10 July Nutation damping operations.
CLC wide deadband (0.23deg) selected - 191.02:09 SCET.
CLC off - 191.05:41 SCET.
McElrath Man. with CLC enabled initiated at 191.11:08 SCET.
Nutation went from 0.29 to 0.08 deg.
X wing heater switch on - 191.18:11 SCET.
CLC wide deadband (0.23deg) selected - 191.18:35 SCET.
CLC narrow deadband (0.125deg) selected - 191.20:37 SCET.
Maximum nutation 0.29 deg. half-cone.
11 July Nutation damping operations.
SIM HET calibration - 192.05:00 SCET.
GAS CR#645: FSS UV mode Part 2 - 192.12:00 SCET.
192.14:16-14:45 DSS24; 29m realtime data lost due to SCP failure. DR G9100070 refers.
CLC wide deadband (0.23deg) selected - 192.23:56 SCET.
Maximum nutation 0.27 deg. half-cone.
12 July Nutation damping operations.
CLC narrow deadband (0.125deg) selected - 193.01:29 SCET.
CLC wide deadband (0.23deg) selected - 193.03:23 SCET.
CLC narrow deadband (0.125deg) selected - 193.06:37 SCET.
CLC wide deadband (0.23deg) selected - 193.09:05 SCET.
CLC narrow deadband (0.125deg) selected - 193.11:29 SCET.
Maximum nutation 0.20 deg. half-cone.
13 July Nutation damping operations.
CLC wide deadband (0.23deg) selected - 194.01:06 SCET.
CLC narrow deadband (0.125deg) selected - 194.05:27 SCET.
CLC wide deadband (0.23deg) selected - 194.16:51 SCET.
CLC narrow deadband (0.125deg) selected - 194.18:28 SCET.
GAS CR#646: FSS UV mode Part 3 - 194.04:00 SCET.
Maximum nutation 0.27 deg. half-cone.
14 July Nutation damping operations.
GAS CR#647: FSS UV mode Part 4 - 195.20:00 SCET.
Maximum nutation 0.32 deg. half-cone.
15 July Nutation damping operations.
Maximum nutation 0.30 deg. half-cone.
16 July Nutation damping operations.
KEP IFC - 197.16:16 SCET.
GAS CR#648: FSS UV mode Part 5 - 197.12:00 SCET.
Maximum nutation 0.19 deg. half-cone.
17 July Nutation damping operations.
198.00:00-00:30 DSS63; ~30m patchy data due to Predicts problem. DR M100070 refers.
McElrath Man. with CLC enabled initiated at 198.01:26 SCET.
Nutation went from 0.40 to 0.07 deg.
GAS CR#650: NG Indirect - 198.19:00 SCET.
Maximum nutation 0.40 deg. half-cone.
18 July Nutation damping operations.
HED calibration - 199.01:00 SCET.
McElrath Man. with CLC enabled initiated at 199.14:38 SCET.
Nutation went from 0.25 to 0.06 deg.
Maximum nutation 0.27 deg. half-cone.
19 July Nutation damping operations.
Maximum nutation 0.32 deg. half-cone.
20 July Nutation damping operations.
201.02:46-02:56 DSS14; 10m realtime data lost - late AOS due to Predicts problem. DR G100102 refers.
201.03:23-03:43 DSS14; 20m realtime data lost - bad receiver Predicts, hard reset. DRs G100103-4 refer.
Maximum nutation 0.32 deg. half-cone.
21 July Nutation damping operations.
Maximum nutation 0.31 deg. half-cone.
22 July Nutation damping operations.
203.14:14-17:43 DSS14; 29m realtime data lost due to antenna halt; DR G100108 refers.
203.23:48-00:16 DSS24; 28m realtime data lost due to problems with planetary Predicts reload.
Antenna halt & resweep. DR 100110 refers.
Maximum nutation 0.16 deg. half-cone.
23 July Nutation damping operations.
Maximum nutation 0.18 deg. half-cone.
204.00:34-00:52 DSS24; 18m realtime data lost due to resweep. DR 100110 refers.
KEP IFC - 204.15:17 SCET.
GAS CR#651: NG direct - 204.18:00 SCET.
24 July Nutation damping operations.
Maximum nutation 0.20 deg. half-cone.
205.23:49-00:25 DSS54; 35m realtime data lost due to problems with predicts reload.
Antenna halt & resweep. DR M100087 refers.
25 July Nutation damping operations.
206.00:51-01:07 DSS54; 17m realtime data lost due to problems reacquiring signal following
Tx resweep.
Earlier antenna pointing problems and Tx resweep caused nutation to grow.
Maximum nutation 0.45 deg. half-cone.
McElrath Man. with CLC enabled initiated at 206.02:24 SCET.
Nutation went from 0.41 to 0.1 deg.
BAM-E calibration - 206.15:26 SCET.
BAM-I calibration - 206.15:36 SCET.
26 July Nutation damping operations.
GRU noise test - 207.19:00 SCET.
BT Part C update operation - 207.15:34 SCET.
Maximum nutation 0.16 deg. half-cone.
27 July Nutation damping operations.
208.00:08-00:11 DSS24; 3m plus 10m realtime 1024bps data lost due to Rx lock loss, Tx off
208.00:43-00:53 and Tx resweep. Predicts problems suspected. DR G100122 refers.
208.23:58-00:30 DSS24; 32m realtime data lost due to problems with predicts reload.
Antenna halt & resweep. DR G100125 refers.
Maximum nutation 0.24 deg. half-cone.
28 July Nutation damping operations.
209.01:02-01:10 DSS24; 8m realtime 1024bps data lost due to 1-way to 2-way transition
due to earlier predicts problems and subsequent Tx resweep.
209.23:22-23:33 12m realtime 1024bps data lost due to exciter interface problems at
DSS24. DR G100130 refers.
Maximum nutation 0.36 deg. half-cone.
McElrath Man. with CLC enabled initiated at 209.03:14 SCET.
Nutation went from 0.27 to 0.09 deg.
29 July Nutation damping operations.
210.23:59-00:14 DSS54; 15m realtime 1024pbs data lost due to suspected problems with predicts
reload. DR M100095 refers.
Maximum nutation 0.26 deg. half-cone.
30 July Nutation damping operations.
211.00:23-00:28 DSS54; 5m plus 12m realtime 1024bps data lost due to earlier predicts problems,
211.00:34-00:47 antenna halt and subsequent Tx resweep.
KEP IFC - 211.15:16 SCET.
Maximum nutation 0.27 deg. half-cone.
31 July Nutation damping operations.
212.07:19-08:04 DSS14; 46m realtime 1024pbs data 85% degraded due to UPS problems at SPC10.
DSS65 came up to provide downlink and confirm U/L status. DR G100153 refers.
Maximum nutation 0.15 deg. half-cone.