September 1996
1 September Earth pointing manoeuvre - 245.11:00 SCET. Performed on LA1.
Manoeuvre was nominal.
2 September KEP IFC - 246.15:13 SCET.
3 September Routine operations.
4 September HED Calibration - 248.08:30 SCET.
Earth pointing manoeuvre - 248.10:00 SCET.
248.14:46-15:03 18m realtime data loss due to DSS 24 antenna halt.
DR G01098.
248.16:35-17:01 26m realtime data loss due to DSS 24 antenna halt.
DR G01098.
(248.20:24-20:34) 10m playback data loss due to 1-way/2-way transition
as a consequence of DSS 24 antenna halt. DR G01107.
(248.23:13-23:28) 15m playback data loss due to 1-way/2-way transition
as a consequence of DSS 24 antenna halt. DR G01107.
5 September
(249.03:29-03:40) 11m playback data loss due to DSS 24 antenna halt.
DR G01107.
(249.05:52-06:32) 40m playback data loss due to DSS 24 antenna halt.
DR G01107.
249.17:01-17:25 20m realtime data loss due to DSS 24 antenna halt.
DR G01107.
There were also numerous small (<10m) losses during this
pass because of one further antenna halt, and associated
1-way/2-way transitions. DR G01107 refers.
6 September BAM-E Counting Interval 56 ms - 250.08:04 SCET.
7 September Earth pointing manoeuvre - 251.11:00 SCET.
(251.20:00-21:00) Patchy playback data due to rain at DSS 61 during playback.
8 September
(252.01:15-01:30) Patchy playback data due to rain at DSS 61 during playback.
(252.03:54-04:04) 10m playback data loss due to unscheduled 1-way/2-way
transition associated with DR L00577.
252.07:19-09:36 2h17m realtime data loss due to DSS 61 declination angle
encoder malfunction. DR L00577.
9 September KEP IFC - 253.07:43 SCET.
10 September SIM HET Calibration - 254.07.00.00 SCET.
Earth pointing manoeuvre - 254.09:00 SCET.
11 September
255.05:45-06:45 Approx 1 hour of bad/patchy realtime data due to rain at
DSS 61.
12 September
256.13:35-13:52 17m realtime data loss due to antenna halt at DSS 24. DR
G01139.
13 September Earth pointing manoeuvre - 257.08:00 SCET.
14 September Routine operations.
15 September
(259.03.22-03:32) 10m playback data loss due to antenna controller malfunction
at 259.06:59 SCET. DR G01149.
(259.06:20-06:30) 10m playback data loss due to 1-way/2-way transition
following antenna controller malfunction. DR G01149.
16 September KEP IFC - 260.14:13 SCET.
Earth pointing manoeuvre - 260.16:00 SCET.
260.13:14-13:28 14m realtime data loss due to DSS 24 long lock-up following
1-way/2-way transition. No DR was raised.
17 September Routine operations.
18 September HED Calibration - 262.07:00 SCET.
19 September GRU Routine Noise Test - 263.17:00 SCET.
Earth pointing manoeuvre - 263.16:00 SCET.
20 September Routine operations.
21 September BAM-I Matrix 1 - 265.14:14 SCET.
22 September Earth pointing manoeuvre - 266.08:00 SCET.
23 September KEP IFC - 267.07:44 SCET.
(267.14:40-15:07) DSS 24 antenna halt during playback caused 25m playback data
loss. DR G01182.
24 September KEP RAM Dump - 268.09:28 SCET.
268.12:51-13:06 DSS 24 antenna halt caused 13m realtime data loss. DR G01182.
(268.21:09-22:07) DSS 24 block 5 receiver drops during playback caused 16m
playback data loss. DR G01186.
(268.22:41-22:57) DSS 24 switched to "sim time" erroneously, had to return to
"standard time"; 16m playback data loss. DR G01185.
(268.23:54-00:22) Failed uplink transfer (DSS 61 to DSS 24) during playback
caused 28m playback data loss. DSS 61 selected 200Hz
acquisition sweep. DR G01184.
25 September KEP GAS Monthly Health Check - 269.10:00 SCET.
Earth pointing manoeuvre - 269.13:00 SCET.
269.12:50-12:52 Failed uplink transfer (DSS 61 to DSS 24) and associated
269.14:15-14:30 reacquisition caused 17m realtime data loss and playback
(269.03:26-03:30) losses on DOY 96.268-269. DR G01184 refers.
269.15:01-15:09 DSS 24 switched to"sim time" erroneously, had to return to
"standard time"; 8m realtime data loss. DR G01185.
269.15:30-16:00 Short outages due to DSS 24 block 5 receiver drops. DR
G01186.
26 September LOC rescheduling:
Dump LOC and RFDU
Deschedule LOC
Schedule LOC - 270.12:00:00.000 SCET.
Dump time tag buffer.
KEP EPAC CR #408:telescope 3, detector A off - 270.06:43 SCET.
27 September KEP EPAC CR #408:telescope 3, detector B off - 271.06:43 SCET.
28 September KEP EPAC CR #408:telescope 3, all on - 272.06:43 SCET.
Earth pointing manoeuvre - 272.13:00 SCET. Please note that
manoeuvres will take place at 4 day intervals from now on.
(272.17:30-18:30) 30 minutes of bad/patchy playback data due to telemetry
degradation during DSS 24 tracking pass. DR G01204.
29 September
273.11:30-12:05 35 minutes of bad/patchy realtime data due to telemetry
degradation during DSS 24 tracking pass. DR G01204.
(273.15:20-15:40) 30 minutes of bad/patchy playback data due to telemetry
degradation during DSS 24 tracking pass. DR G01209.
(273.16:25-17:10) 45 minutes of bad/patchy playback data due to telemetry
degradation during DSS 24 tracking pass. DR G01209.
30 September KEP IFC - 06:43 SCET.
274.11:17-11:40 23m + 15m of bad/patchy realtime data due to telemetry
274.12:00-12:15 degradation during DSS 24 tracking pass. DR G01209.