10 December 2017 - Mission Day: 8045 - DOY: 344
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

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