OPERATIONS
Science Operations
DOY = day-of-the-year; FD = Flight date. Times are in UTC.
Month | Day | Year | DOY | FD | Time | Event |
JAN | 20 | 2005 | 020 | 3338 | - | Major Flare (18-21 Jan). Led to many anomalies, in particular multiple star swaps on Jan 20. |
JAN | 24 | 2005 | 024 | 3342 | 19:15 | SSR Memory Unit #11 switched back ON |
FEB | 03 | 2005 | 034 | 3352 | - | MDI 4-Day Continuous until February 6 |
FEB | 18 | 2005 | 049 | 3367 | - | FSPAAD state indicated "detected" |
MAR | 03 | 2005 | 062 | 3380 | - | Beginning of March keyhole period |
MAR | 10 | 2005 | 069 | 3387 | - | Transponder Swap (1->2) |
MAR | 22 | 2005 | 081 | 3399 | - | SK-46: jets 2,3,4; dV:0.1137 m/s |
MAR | 22 | 2005 | 081 | 3399 | - | Momentum Management 3 segments. Final speeds: --947/--400/2272 rpm |
MAR | 22 | 2005 | 081 | 3399 | - | 180 degree Roll, satellite back to regular position. Final speds: 1885/400/--1370 rpm |
MAR | 24 | 2005 | 083 | 3401 | - | Transponder Swap (2->1) |
MAR | 31 | 2005 | 090 | 3408 | - | End of March keyhole period |
MAR | 31 | 2005 | 090 | 3408 | - | MDI 5-Day Continuous until April 4 |
APR | 8 & 9 | 2005 | 098 | 3416 | - | GOLF polarizer and quarter wave electronics switched off, substitution heaters (68 & 69) to 30 % |
APR | 20 | 2005 | 110 | 3428 | 14:14-14:26 | HGA Moved around Z axis by -70 steps (dual coil) to -18.553 deg to eliminate mini-keyholes |
APR | 27 | 2005 | 117 | 3435 | - | MDI 6-Day Continuous until May 2 |
MAY | 16 | 2005 | 136 | 3454 | - | MEDOC Campaign #15, until June 05 |
MAY | 16 | 2005 | 136 | 3454 | 22:27 | APME A switched OFF |
MAY | 26 | 2005 | 146 | 3464 | 18:58 | APME A switched back ON |
JUN | 02 | 2005 | 153 | 3471 | 15:00 | HGA moved through APME A around Y axis by -35 steps to get a fine pulse (whole APME A loop control) |
JUN | 05 | 2005 | 156 | 3474 | - | Beginning of June keyhole period |
JUN | 09 | 2005 | 160 | 3478 | - | Transponder Swap (1->2) |
JUN | 17 | 2005 | 168 | 3486 | - | SK-47: jets 2,3,4; dV: 0.030 m/s |
JUN | 17 | 2005 | 168 | 3486 | - | Momentum Management 3 segments. Final speeds: 610/390/--1000 rpm |
JUN | 17 | 2005 | 168 | 3486 | - | 180 degree Roll, satellite in inverted position. Final speeds:--615/--385/990 rpm |
JUN | 17 | 2005 | 168 | 3486 | - | Upload of SSU Patch 2B (One Word Patch) |
JUN | 17 | 2005 | 168 | 3486 | - | Determine exact fine pulse position vs step counter + move antenna (Y axis) to -4.06875 degrees (June 20 16:00) |
JUN | 18 | 2005 | 169 | 3487 | 07:54 | Star swap from star 1 to star 2 |
JUN | 20 | 2005 | 171 | 3489 | - | Transponder Swap (2->1) |
JUN | 25 | 2005 | 176 | 3494 | - | End of June keyhole period |
JUN | 25 | 2005 | 176 | 3494 | - | MDI 60-Day Continuous period until August 30 |
JUN | 27 | 2005 | 178 | 3496 | 04:00-10:00 | Telemetry and Telecommand test with New Norcia Station |
JUL | 12 | 2005 | 193 | 3511 | 14:30 | FPSS-B comparison with FPSS-A (OCD #2045) |
AUG | 30 | 2005 | 242 | 3560 | - | Beginning of September keyhole period |
SEP | 01 | 2005 | 244 | 3562 | 18:15 | Tape Recorder maintenance |
SEP | 06 | 2005 | 249 | 3567 | - | Transponder Swap (1->2) |
SEP | 08 | 2005 | 250 | 3568 | - | SK-48: jets 2,3,4; dV: 0.089 m/s |
SEP | 08 | 2005 | 250 | 3568 | - | Momentum Management 3 segments. Final speeds: --1495/--425/1500 rpm |
SEP | 08 | 2005 | 250 | 3568 | - | 180 degree Roll, satellite back to regular position. Final speeds: 1080/425/--1910 rpm |
SEP | 22 | 2005 | 265 | 3583 | - | Transponder Swap (2->1) |
SEP | 30 | 2005 | 273 | 3591 | - | End of September keyhole period |
OCT | 12 | 2005 | 285 | 3603 | - | MDI 5-Day Continuous until October 16 |
OCT | 13 | 2005 | 286 | 3604 | - | Star Swap |
NOV | 09 | 2005 | 313 | 3631 | - | MDI 5-Day Continuous until November 13 |
NOV | 11 | 2005 | 315 | 3633 | - | HGA Y axis movements down from 3/day (@ 00:00, 08:00 and 16:00) to 1/day (@ 00:00) - OCD 2088 |
DEC | 03 | 2005 | 337 | 3655 | - | Beginning of December keyhole period |
DEC | 06 | 2005 | 340 | 3658 | - | Transponder Swap (1->2) |
DEC | 14 | 2005 | 348 | 3666 | - | Upload of SSR patch. Software version has been updated from version 2.02 to version 2.03.0 (SEF/DEF + IT2) |
DEC | 15 | 2005 | 349 | 3667 | - | SK -49: jets 2,3,4: dV: 0.076 m/s |
DEC | 15 | 2005 | 349 | 3667 | - | Momentum Management 3 segments. Final speeds: 1230/390/--810 rpm |
DEC | 15 | 2005 | 349 | 3667 | - | 180 degree Roll, satellite in inverted position. Final speeds: --430/--380/1605 rpm |
DEC | 17 | 2005 | 351 | 3669 | - | Transponder Swap (2->1) |
DEC | 21 | 2005 | 355 | 3673 | - | End of December keyhole period |