August 2003
1 August HUS Heater tests - 213.17:25:27 to 213.17:29:43 SCET.
(HUS Heat OFF 64s, 3 x ON/OFF with 32s interval, heat ON.)
GRU CR #773: New program reload seq 1-6 - 213.17:26 SCET.
213.21:15-21:29 13m realtime 4096bps plus 1h 22m playback 512bps data lost at
(213.08:31-09:53) DSS14 due to antenna pointing problems. Antenna conscan had been
used earlier to try to improve signal. DR N101249 refers.
2 August GRU reset command (anomaly ULY059 refers) - 214.01:08 SCET.
214.15:08-15:26 10m realtime 512bps plus 8m realtime 1024bps data lost at DSS14
due to problems with Antenna Pointing Assembly (APA) at AOS.
DR G103116 refers.
3 August Earth pointing manoeuvre w/power save - 215.16.21 SCET.
4 August Routine operations
5 August Routine operations
6 August STO1 Calibration - 218.15:52 SCET.
Earth pointing manoeuvre w/power save - 218.13.41 SCET.
7 August HUS Heater tests - 219.15:24:59 to 219.15:35:07 SCET.
(HUS Heat OFF 64s, 8 x ON/OFF with 32s interval, heat ON.)
SIM HET Calibration - 219.14:10 SCET. (calibration performed at
incorrect bitrate of 512bps, will repeat on DOY 222 at 1024bps)
219.18:49-19:15 Intermittent bad data. 16m 1024bps real-time data lost due to
RNS swap at DSS-24. DR G103157 refers.
8 August Routine operations
220.15:47-15:49 2m real-time 1024bps data loss and 12m 512bps data lost due to an
(219.00:15-00:27) unexplained data hit during 4k playback. No DR raised.
9 August Earth pointing manoeuvre w/power save - 221.08:30 SCET.
10 August GRU CR#772: Program reload, version 4 - 222.08:20 SCET.
SIM HET Calibration - 222.09:00 SCET.
11 August GRU CR #773: New program reload seq 1-6 - 223.09:30 SCET.
GRU reset command (anomaly ULY059 refers) - 223.17:05 SCET.
12 August Earth pointing manoeuvre w/power save - 224.08:00 SCET.
GRU Program reload, version 3 (ULY059 refers) - 224.10:00 SCET.
GRU Program activation (ULY059 refers) - 224.17:20 SCET.
13 August HED Calibration - 225.15:00 SCET.
GRU HV Level 0 - cancelled due to uplink failure at DSS-14.
225.17:32-19:08 1h36m 1024bps real-time and 7h1m 512bps playback data lost due
(225.07:11-14:12) to severe communication circuit failure at Goldstone. Downlink
restored at DSS-15. DR G103193 refers.
14 August GRU HV Level 0 - cancelled due to uplink failure at DSS-24.
226.17:39-17:51 12m 1024bps real-time data lost due to uplink failure at DSS-24.
Feed mirrors not positioned/configured correctly. DR G103200 refers.
226.21:41-22:05 Contingency command window opened at DSS-24 to send DSU commands
for DOY 227. Incorrect file transmitted, partial GRU load sent
before command aborted.
15 August Routine operations.
16 August Earth pointing manoeuvre w/power save - 228.08.41 SCET.
GRU Program reload, version 3 (ULY059 refers) - 228.10:45 SCET.
228.12:08-12:33 25m 1024bps real-time data lost due to long one-way accquisition
at DSS-63. DR M101820 refers.
17 August GRU Program activation (ULY059 refers) - 229.20:55 SCET.
18 August Routine operations.
230.07:42-07:48 6m realtime 1024bps data lost due to long 1-way to 2-way acquisition
at DSS63. No DR was raised.
19 August Earth pointing manoeuvre w/power save - 231.14.56 SCET.
GRU HV Level 0 - 231.12:51 SCET.
231.16:22-16:28 6m realtime 1024bps data lost due to long 1-way to 2-way acquisition
at DSS24. No DR was raised.
Subreflector problems at DSS24 led to multiple data outages. DR G103227
refers. Outage summary as follows:
231.17:04-17:22 18m realtime 1024 bps data lost.
231.17:49-17:58 9m realtime 1024 bps data lost.
231.18:14-18:25 84% realtime 1024 and 512bps data lost.
20 August GRU Routine Noise Test - postponed until experiment configuration
completed.
HUS heater test, 96s OFF.
HUS Heat OFF - 232.17:09:09 SCET
HUS Heat ON - 232.17:10:45 SCET
21 August BAM-E calibration - 233.15:26 SCET.
BAM-I calibration - 233.15:36 SCET.
22 August GRU HV Level 1 - 234.17:22 SCET.
GRU HV Level 2 - 234.17:26 SCET.
GRU HV Level 3 - 234.17:32 SCET.
GRU HV Level 4 - 234.17:39 SCET.
23 August Routine operations
24 August Earth pointing manoeuvre w/power save - 236.08.56 SCET.
25 August Routine operations
26 August HED Calibration - 238.14:00 SCET.
238.13:15-16:41 Intermittent data losses due to Receiver & Ranging Processor (RRP2)
failures at DSS-14. RRP2 was reset. DR G103264 refers.
27 August Routine operations
28 August Earth pointing manoeuvre w/power save - 240.13.51 SCET.
240.20:23-20:32 9m 1024bps real-time and 19m 512bps play-back data lost due to a
(240.05:27-05:46) power outage at DSS-26. DR G103273 refers.
29 August Routine operations
30 August Routine operations
31 August
243.19:41-19:44 3m realtime 1024bps plus 29m playback 512bps data degraded by 63% due to
(243.09:04-09:33) problems with antenna conscan offsets at DSS14. No DR was raised.