Month,Day,Year,Day of Year,Flight Day,Time (UTC),Event DEC,2,1995,336,1,8:08,Launch DEC,2,1995,336,1,10:10,Separation from Centaur DEC,2,1995,336,1,10:14,Telemetry acquired (delayed by ~ 3 min.) DEC,2,1995,336,1,10:19,Solar Array deployed DEC,2,1995,336,1,16:48,Fail-over to Gyro Mode DEC,2,1995,336,1,18:30,High Gain Antenna deployed DEC,3,1995,337,2,2:04,Thermal Reconfiguration (GOLF Sub.Htr.) DEC,4,1995,338,3,0:10,MCC1 X-1 Burn DEC,4,1995,338,3,2:05,"ESR-1 (Emergency Sun Reorientation), by roll rate; failure was ACU Reset" DEC,4,1995,338,3,18:00,MCC1 X-2 Burn DEC,4,1995,338,3,19:18,Fail-over to Gyro Mode DEC,14,1995,348,13,0:27,Momentum Management; +3500/+600/+1000 DEC,14,1995,348,13,5:50,Roll to nominal attitude complete DEC,14,1995,348,13,16:15,Fail-over to Gyro Mode DEC,15,1995,349,14,4:34,Fail-over to Gyro Mode DEC,17,1995,351,16,6:46,Fail-over to Gyro Mode DEC,18,1995,352,17,16:41,Tape Recorder Maintenance DEC,23,1995,357,22,13:37,Onboard Time Frequency Adjustment DEC,26,1995,360,25,23:33,Onboard Time Frequency Adjustment ,,,,,, JAN,5,1996,5,35,5:40,MCC2 X-1 Burn JAN,13,1996,13,43,14:31,Onboard Time Frequency Adjustment JAN,16,1996,16,46,18:25,Momentum Management; -1200/+1000/+3200 FEB,1,1996,32,62,10:16,Fail-over to Gyro Mode FEB,14,1996,45,75,17:00,Halo Orbit Insertion Manoeuvre (HOI) FEB,14,1996,45,75,19:01,Reaction Wheel 4 Commissioning FEB,16,1996,47,77,16:11,GOLF power cycle for re-boot (4 minutes) FEB,17,1996,48,78,14:45,"Offset Tests:FPSS Pi&Ya; Golf: Ro,Pi,Ya (PCPG)" FEB,21,1996,52,82,5:52,J2 - Golf Oscillation Tests - Yaw (PCPG) FEB,22,1996,53,83,2:30,J2 - Golf Oscillation Tests - Pitch (PCPG) FEB,24,1996,55,85,9:52,Fail-over to Gyro Mode FEB,26,1996,57,87,21:56,"Telemetry Submodes 2,3,4 tested" MAR,2,1996,62,92,14:52,Tape Recorder Maintenance MAR,5,1996,65,95,21:02,Fail-over to Gyro Mode MAR,7,1996,67,97,13:32,FPSS Pitch reference updated to -810 arcsec MAR,11,1996,71,101,18:50,"COBS patch for ACU Reset Monitoring (via ""troubleshoot"" function)" MAR,14,1996,74,104,16:13,"ACU Patch 5 uplinked (SEU's are screened by ""staircase filter""); name:CSEA003" MAR,15,1996,75,105,8:00,GOLF Roll Oscillations +/-45 arcsec for 16 hrs (PCPG) MAR,18,1996,78,108,21:56,Momentum Management; +2350/-3010/+958 MAR,19,1996,79,109,16:58,"J1 Test - 360 degree roll, steps of 30,45 and 90 degrees" MAR,20,1996,80,110,16:45,Wheels Test and MMM: -1200/+1000/+3000 MAR,20,1996,80,110,22:45,Halo Orbit Insertion Manoeuvre (HOI) - Trim MAR,21,1996,81,111,18:18,GOLF commissions redundant channel MAR,26,1996,86,116,15:46,VIRGO LOI Door opened with COBS Patch APR,3,1996,94,124,17:10,J3 - FPSS Trim -10 arcmin North (in 50 min) 20 moves APR,4,1996,95,125,12:20,J3 - FPSS Trim - 20 arcmin East (in 55 min) 40 moves APR,13,1996,104,134,16:55,Fail-over to Gyro Mode APR,16,1996,107,137,23:13,FPSS Pitch Bias set 3.3 arcmin APR,19,1996,110,140,19:21,Onboard Time Frequency Adjustment APR,21,1996,112,142,17:11,Fail-over to Gyro Mode APR,24,1996,115,145,,"MDI Continuous Coverage, 3 days until 119/08:30" APR,26,1996,117,147,15:32,Fail-over to Gyro Mode MAY,16,1996,137,167,20:45,Tape Recorder Maintenance MAY,17,1996,138,168,22:56,Momentum Management; -2000/+1000/-1000 MAY,20,1996,141,171,23:30,"Roll 90 degrees for CDS, SUMER (JOP2)" MAY,22,1996,143,173,19:40,Momentum Management; -800/+1000/-800 MAY,23,1996,144,174,0:02,SK-1; X-1; (141 sec) MAY,23,1996,144,174,,"MDI Continuous Coverage, 2 months until 206/04:30" MAY,26,1996,147,177,18:18,Fail-over to Gyro Mode JUN,25,1996,177,207,13:46,Onboard Time Frequency Adjustment JUN,27,1996,179,209,18:05,Momentum Management; -1200/+1000/+3000 JUL,24,1996,206,236,16:52,Fail-over to Gyro Mode JUL,26,1996,208,238,19:31,Fail-over to Gyro Mode JUL,27,1996,209,239,20:39,SWAN powered off until July 29 at 15:01 JUL,30,1996,212,242,18:41,Fail-over to Gyro Mode AUG,18,1996,231,261,,"MDI Continuous Coverage, 3 days until 235/03:10" AUG,18,1996,231,261,19:06,"CTOF (CELIAS) power -off untill Nov 29,96" SEP,3,1996,247,277,17:55,Fail-over to Gyro Mode SEP,9,1996,253,283,15:48,"VIRGO ""safe "" mode (low power) untill Sept.12, 19:50" SEP,11,1996,255,285,19:59,Reaction Wheel 4 maintenance SEP,11,1996,255,285,20:42,Momentum Management; -1200/+1000/+3000 SEP,11,1996,255,285,23:15,SK-2; X-1; ( 210 sec) SEP,12,1996,256,286,15:15,"ACU Patch 6 uplinked (""star jump filter""); name: CSEA004" SEP,17,1996,261,291,,"MDI Continuous Coverage, 3 days until 265/01:35" OCT,1,1996,275,305,15:49,Tape Recorder Maintenance OCT,4,1996,278,308,14:50,Onboard Time Frequency Adjustment OCT,13,1996,287,317,2:28,Fail-over to Gyro Mode OCT,13,1996,287,317,18:32,Fail-over to Gyro Mode OCT,17,1996,291,321,,"MDI Continuous Coverage, 3 days until 295/07:30" OCT,20,1996,294,324,21:26,Fail-over to Gyro Mode NOV,9,1996,314,344,21:53,Momentum Management; +1800/+800/+3000 NOV,10,1996,315,345,15:41,Fail-over to Gyro Mode NOV,16,1996,321,351,,"MDI Continuous Coverage, 3 days until 325/00:30" NOV,20,1996,325,355,21:05,FPSS Off-pointing by 10 arcsec Pitch and Yaw NOV,21,1996,326,356,16:29,Roll to 45 and 90 degrees NOV,22,1996,327,357,7:15,Roll back from 90 to 0 degrees NOV,22,1996,327,357,17:07,Momentum Management; +500/+1000/+2500 NOV,30,1996,335,365,16:22,Fail-over to Gyro Mode DEC,2,1996,337,367,15:23,Tape Recorder Maintenance DEC,4,1996,339,369,18:30,Telemetry Submode 2 tested for 4 hrs DEC,5,1996,340,370,13:00,Telemetry Submode 3 tested for 3 hrs DEC,15,1996,350,380,,"MDI Continuous Coverage, 3 days until 354/01:50" ,,,,,, JAN,14,1997,14,410,16:39,"SK-3; ( X 1=16sec, X 2=3.6sec)" JAN,14,1997,14,410,23:53,Fail-over to Gyro Mode JAN,15,1997,15,411,,"MDI Continuous Coverage, 3 days (until 018/21:50)" JAN,21,1997,21,417,21:55,Fail-over to Gyro Mode JAN,30,1997,30,426,14:44,SSU staircase threshold for fail-over to gyro: increased from 5 to 30 FEB,1,1997,32,428,17:30,Tape Recorder Maintenance FEB,10,1997,41,437,17:00,Telemetry Submode 5 (new) replaces submode 1 FEB,11,1997,42,438,17:01,Telemetry Submode 6 (new) tested for 4 hrs FEB,13,1997,44,440,,"MDI Continuous Coverage, 3 days (until 048/05:30)" FEB,13,1997,44,440,19:41,"SEU counter trace with COBS min/max channels 15,16" FEB,15,1997,46,442,10:26,Thermal Reconfiguration (CEPAC/ESU hot) MAR,6,1997,65,461,9:08,Fail-over to Gyro Mode (2hrs in RMW) MAR,12,1997,71,467,,"MDI Continuous Coverage, 3 days (until 075/04:20)" MAR,18,1997,77,473,17:50,Wheel 4 maint. & Momentum Mgmt: 2517/-3103/1615 (till 22:40) MAR,20,1997,79,475,12:02,Two Rolls for MDI&SWAN; 12 *30 deg.& 4*90 deg. (till 02:33) MAR,21,1997,80,476,5:37,"HGA points to center of earth, not to station D16 from now on" APR,2,1997,92,488,17:45,Tape Recorder Maintenance APR,10,1997,100,496,10:10,Fail-over to Gyro Mode (6.1 hrs in RMW) APR,11,1997,101,497,17:09,Mom. Mgmt. (-501/512/1589) APR,11,1997,101,497,,"SK-4; Delta-V = - 0.19 m/s, burn time 1.5 min, fuel used 0.21 kg; NM at 22:50" APR,13,1997,103,499,,"MDI Continuous Coverage, 3 months (until 195/04:20)" APR,23,1997,113,509,3:20,Spacecraft Receiver 1 lost lock APR,28,1997,118,514,19:51,Spacecraft Receiver 1 lock frequency found @ 2066.86 Mhz MAY,2,1997,122,518,14:59,OBT Freqency Adjustment MAY,19,1997,139,535,,"Medoc Campaign #1, run for 3 weeks until June 6,1997" MAY,29,1997,149,545,9:28,Fail-over to Gyro Mode (3 hrs in RMW) JUN,1,1997,152,548,21:00,Tape Recorder Maintenance JUN,13,1997,164,560,,SSU Staircase Filter changed from 30 to 60 in AOCS Software AUG,1,1997,213,609,16:00,Tape Recorder Maintenance AUG,1,1997,213,609,20:26,Fail-over to Gyro Mode (52 min in RMW) AUG,10,1997,222,618,,"MDI Continuous Coverage, 3 days (until 226/03:50)" SEP,1,1997,244,640,15:33,Momentum Management preparing for roll; fuel 53 gr.;done 18:36 SEP,2,1997,245,641,14:50,Fail-over to Gyro Mode (75 min in RMW) SEP,3,1997,246,642,8:32,"Roll;dwell: @ 45 deg. 1.5 hrs, @ 90 deg. 12 hrs; done 247/00:09" SEP,3,1997,246,642,16:06,Fail-over to Gyro Mode (114 min in RMW) during dwell @ 90 deg SEP,4,1997,247,643,1:00,"Switch to Communications Back-up (TM low rate), recovered: 7:39" SEP,4,1997,247,643,16:51,Wheel 4 Maintenance & Mom. Mgmt. (-500/500/1600); done 19:00 SEP,4,1997,247,643,21:49,"SK-5; Delta-V = - 1.9 m/s, burn time 15.5 min, fuel used 2 kg; done 00:18" SEP,11,1997,254,650,,"MDI Continuous Coverage, 3 days (until 258/05:20)" SEP,25,1997,268,664,19:07,"Test of new TM submode 3, until 24:00" SEP,26,1997,268,664,15:10,"Test of new TM submode 2, until 19:05" OCT,7,1997,280,676,,"MDI Continuous Coverage, 3 days (until Oct.11, 04:35)" OCT,8,1997,281,677,13:30,CDS processor swap (to remedy the watch dog triggering) OCT,13,1997,286,682,22:14,Fail-over to Gyro Mode (2 hrs in RMW) OCT,27,1997,300,696,,"Medoc Campaign #2, run for 3 weeks until Nov.9,1997" OCT,30,1997,303,699,15:02,Fail-over to Gyro Mode (50 min in RMW) NOV,5,1997,309,705,,"MDI Continuous Coverage, until Nov. 9 at 06:00)" NOV,6,1997,310,706,17:31,Fail-over to Gyro Mode (76 min in RMW) due to X9.4 flare in AR8100 NOV,7,1997,311,707,0:51,"Fail-over to Gyro Mode, 3 times (4 hrs, 41 min total in RMW)" NOV,19,1997,323,719,14:40,"ESR-2, by off-pointing (ACU power failure), recovered Nov.20 at 15:43" NOV,20,1997,324,720,10:20,"Switch to Communications Back-up (TM low rate), recovered:12:33" NOV,29,1997,333,729,14:05,"Wheel 4 Maint.,Mom. Mgmt. (3000/500/1800)" NOV,29,1997,333,729,20:45,"SK-6, Delta -V = + 0.04 m/s, 15 sec burn, fuel 0.03 kg " DEC,11,1997,345,741,,"MDI Continuous Coverage, (until Dec.15, 07:00)" DEC,15,1997,349,745,14:45,OBT Freqency Adjustment DEC,19,1997,353,749,18:00,Mom. Mgmt. (3000/500/1800) & SK 07; done 20:38 (result of ESR) DEC,19,1997,353,749,20:30,"SK-7, Delta -V = - 0.4 m/s, 3min burn, fuel 0.42 kg " ,,,,,, JAN,30,1998,30,791,1:54,Fail-over to Gyro Mode (2 hours in RMW) FEB,27,1998,58,819,23:49,"Fail-over to Gyro Mode (1 hr, 42 min in RMW)" MAR,2,1998,61,822,14:00,"New Telemetry Subformat 3 test, ran until Warm Start-up" MAR,3,1998,62,823,9:02,DHSS Warm Start-Up MAR,3,1998,62,823,19:03,ESR-3 by off-pointing MAR,3,1998,62,823,22:53,ESR-4 by roll rate; back to Normal Mode: March 5 at 00:04 UT MAR,14,1998,73,834,,OBT Frequency Adjustment. MAR,25,1998,85,846,2:40,"VIRGO ""safe"" mode (low power) until Mar. 26, @00:00" APR,8,1998,98,859,,OBT Frequency Adjustment. APR,10,1998,100,861,11:13,Fail-over to Gyro Mode (2 hrs 26 min in RMW) APR,17,1998,107,868,18:52,"SK-8, Delta V = 1.4 m/sec, 11 min burn, 1.5kg fuel" APR,20,1998,110,871,3:58,Fail-over to Gyro Mode (2 hrs in RMW) MAY,1,1998,121,882,17:35,"Fail-over to Gyro-Mode (1 hr, 20 min in RMW)" MAY,1,1998,121,882,,"MDI Continuous Coverage (until May 7, 21:30 UT)" JUN,11,1998,162,923,,"MDI Continuous Coverage (until June 18, 05:30 UT)" JUN,24,1998,175,936,23:16,ESR-5 by (false) roll rate JUN,25,1998,176,937,2:35,ESR-6 by roll rate JUN,25,1998,176,937,4:38,ESR-7 by off-pointing JUN,25,1998,176,937,4:43,Loss of Telemetry JUL,23,1998,204,965,10:00,RADAR from DSN & Arecibo determine SOHO position and Spin Rate AUG,3,1998,215,976,22:51,SOHO Telemetry carrier signal received by DSN AUG,8,1998,220,981,23:14,"Reception of Telemetry, Batteries charging" AUG,9,1998,221,982,,Payload RTU switched ON AUG,12,1998,224,985,23:39,Begin of hydrazine tank thawing AUG,28,1998,240,1001,23:02,Completion of hydrazine tank thawing; AUG,30,1998,242,1003,,Begin of hydrazine lines thawing SEP,16,1998,259,1020,5:45,Begin of Attitude Recovery SEP,16,1998,259,1020,18:29,ESR-8 (Commanded as part of the recovery) SEP,16,1998,259,1020,18:30,SOHO locks onto the sun SEP,22,1998,265,1026,19:35,ESR-9 by (false) off-pointing SEP,22,1998,265,1026,21:32,DHSS Warm start-up SEP,23,1998,266,1027,16:58,Attitude Control in Roll Maneuver Wheels Mode SEP,25,1998,268,1029,18:00,"SK-9, Delta - V = - 6.21 m/sec, 45.5 min burn, 6.7 kg fuel (in 2 segments)" SEP,25,1998,268,1029,19:52,Attitude Control in Normal Mode OCT,1,1998,274,1035,12:15,"SSU Patch, repeated on Oct.2" OCT,4,1998,277,1038,13:15,Fail-over to Gyro Mode (0.5 hrs in RMW) OCT,5,1998,278,1039,18:20,SUMER power ON post recovery OCT,6,1998,279,1040,17:53,VIRGO power ON post recovery OCT,7,1998,280,1041,18:52,Offset -198 arcsec OCT,7,1998,280,1041,13:55,Fail-over to Gyro Mode (0.5 hrs in RMW) OCT,8,1998,281,1042,17:38,GOLF power ON post recovery OCT,9,1998,282,1043,10:35,CEPAC power ON post recovery OCT,10,1998,283,1044,17:28,UVCS power ON post recovery OCT,12,1998,285,1046,19:42,MDI power ON post recovery OCT,13,1998,286,1047,17:22,LASCO power ON post recovery OCT,12,1998,286,1047,17:26,Fail-over to Gyro Mode (0.5 hrs in RMW) OCT,13,1998,287,1048,15:46,"OSR & FPSS duty cycle to 20%, to zero Oct 14" OCT,16,1998,289,1050,21:42,Mom. Mgmt. (-666/602/2357) & roll from 53 to 3 deg OCT,16,1998,289,1050,,"SK-10, Delta - V = 2.4 m/sec" OCT,17,1998,290,1051,8:17,Fail-over to Gyro Mode (1.7 hrs in RMW) OCT,17,1998,290,1051,18:52,Fail-over to Gyro Mode (0.4 hrs in RMW) OCT,17,1998,290,1051,19:51,CDS power ON post recovery OCT,17,1998,290,1051,21:11,Fail-over to Gyro Mode (0.6 hrs in RMW) OCT,18,1998,291,1052,17:23,SWAN power ON post recovery OCT,19,1998,292,1053,18:17,Close LV-B OCT,23,1998,296,1057,15:35,"X-Panel duty cycle decreased by 20% (TCS2, TCS3)" OCT,24,1998,297,1058,17:59,CELIAS power ON post recovery NOV,4,1998,308,1069,,Instrument Recommissioning Ends NOV,12,1998,316,1077,,Instrument Prep. for Leonids Begins NOV,13,1998,317,1078,19:46,Mom. Mgmt (-719/911/1173) & SK-11 (2m/sec) NOV,15,1998,319,1080,18:30,Roll to -120 degrees (protect for Leonids) NOV,20,1998,324,1085,,SSU Patch; this time successful NOV,22,1998,326,1087,,Instrument Recovery from Leonids Ends DEC,21,1998,355,1116,17:49,ESR-10 by off-pointing (loss of the last gyro) DEC,21,1998,355,1116,23:30,Started with roll rate braking (thruster 5B) ,,,,,, JAN,8,1999,8,1134,19:58,Start reduction of yaw rate JAN,19,1999,19,1145,18:30,"SK-13 (in ESR), Delta-V = - 8.6 m/s, segment 1/2/3: 20/30/20 min, fuel 9.2 kg" JAN,20,1999,20,1146,,Reaction wheels spinning and wheel 4 maintenance JAN,26,1999,26,1152,19:00,"SK-14 (in ESR), Delta-V =-3.9m/s ; segment 1/2/3 = 5/21/1 min, fuel 4.27 kg" JAN,28,1999,28,1154,,Flight test of FPSS raw data processing JAN,29,1999,29,1155,,Preparation of ESR exit maneuver (ACU & SSU patches) JAN,30,1999,30,1156,,ESR exit maneuver JAN,30,1999,30,1156,17:45,In RMW (Roll Angle -63 deg); mom mgt 21:10 JAN,30,1999,30,1156,22:57,DHS Reconfiguration FEB,1,1999,32,1158,19:15,"SK-15 (in RMW), Delta-V = +0.32 m/s, segment 1/2 = 10/25 min; fuel: 0.27 kg" FEB,1,1999,32,1158,22:12,DHS Reconfiguration FEB,2,1999,33,1159,16:11,Transition Tests RMW/NM FEB,2,1999,33,1159,19:12,Back to Normal Mode FEB,5,1999,36,1162,15:59,Tape Recorder Maintenance FEB,14,1999,45,1171,13:53,"ESR-11, by off-pointing" FEB,18,1999,49,1175,18:52,"Back to Normal Mode (Roll Angle -120 deg), mom mgt 15:20" MAR,3,1999,62,1188,16:05,"Mom.Mgmt, 4 segments: yaw/roll/pitch/yaw;final speeds: 600/-750/600 rpm" MAR,4,1999,63,1189,16:18,Roll by 120 degrees to 0.653; roll trim to - 0.109 degrees; 198 arcsec yaw off-set 23:03 MAR,4,1999,63,1189,,Loss of SSU Patch during S/C roll. MAR,5,1999,64,1190,17:35,"Mom.Mgmt, 3 segments: pitch/yaw/roll;final speeds: 2000/2000/-2000 rpm; 20:05 done" MAR,5,1999,64,1190,20:30,"SK-16, Delta V = -11.87 cm/sec; 4 segments: jets 1/2/4/6: 52/52/2/2 sec on-time " MAR,5,1999,64,1190,21:30,"Mom.Mgmt, 3 segments: roll/yaw/pitch;final speeds: 3000/500/-1700 rpm, 22:30 done" MAR,6,1999,65,1191,19:25,SSU SEU Flag (Fail-over to no roll control); back to Normal Mode 20:00 MAR,8,1999,67,1193,16:00,Roll trim by 1645 arcsec (0.45 degrees) for RSL activation at 17:25 MAR,13,1999,72,1198,,"MDI Continuous Coverage, planned until June 14 at 01:50" MAR,15,1999,74,1200,16:48,Roll trim by 378.86 arcsec (RSL correction) MAR,18,1999,77,1203,,SSU-A: heater for startracker head switched off APR,9,1999,99,1225,,RSL preparation on ground changed to skip pixel boundaries APR,29,1999,119,1245,19:09,SSU SEU Flag (Fail-over to no roll control); back to Normal Mode 20:26 MAY,10,1999,130,1256,,"Medoc Campaign #3, run for 3 weeks until May 31,1999" MAY,11,1999,131,1257,17:37,Gyro B power off (all 3 gyros are off) MAY,18,1999,138,1264,14:00,"Mom.Mgmt, 3 segments: roll/pitch/yaw; final speeds: -581/762/1877 rpm; 17:00 done" MAY,20,1999,140,1266,17:07,SSU SEU Flag (Fail-over to no roll control); back to Normal Mode 18:31 JUN,11,1999,162,1288,19:49,SSU Staircase Filter changed from 60 to 600 in AOCS Software JUN,14,1999,165,1291,13:10,Tape Recorder Maintenance JUN,17,1999,168,1294,20:30,"SK-17, Delta V = 0.46m/sec; 3 segments: jets 2/3/4: 3.5/155/151 sec on-time " JUN,17,1999,168,1294,23:00,"Mom.Mgmt, 3 segments: roll/yaw/pitch;final speeds: -520/520/1900 rpm, 00:00 done" AUG,27,1999,239,1365,12:33,SSU SEU Flag (Fail-over to no roll control); back to Normal Mode 12:42 SEP,24,1999,267,1393,,Gyroless Flight Comm.: AOCS Software part 1 upload SEP,27,1999,270,1396,,"Gyroless Flight Comm.: AOCS Software part 2 and COBS upload; test of CRP,RMW,NM" SEP,28,1999,271,1397,,"Gyroless Flight Comm.: star swap, P/Y/R profiles in NM, protection functions, Mom mgt" SEP,29,1999,272,1398,14:55,"Gyroless Flight Comm.: P/Y profiles in CRP, 1st part of 360 deg. roll: 8, 10 and 54 deg." SEP,30,1999,273,1399,10:30,"Gyroless Flight Comm.: final part of 360 deg.roll: 90, 105 and 90 deg." OCT,1,1999,274,1400,,"Gyroless Flight Comm.: SSU patch, profiles P/Y/R in RMW, fallback to CRP & recovery" OCT,2,1999,275,1401,,"Gyroless Flight Comm.: Mom.Mgt, RW4 maint., Mom.Mgt, SK-18 (delta V=0.05m/sec)" OCT,4,1999,277,1403,,"Gyroless Flight Comm.: test of routine ops (release guide star, RSL uplink, recover star" OCT,6,1999,279,1405,,"Medoc Campaign #4, run until Oct.17,1999" OCT,13,1999,286,1412,,"MDI Continuous Coverage, planned until Oct.19 at 12:45 UT" OCT,21,1999,294,1420,,Tape Recorder Maintenance NOV,8,1999,312,1438,,Instruments Prep. for Leonides begins NOV,9,1999,313,1439,20:34,"Mom.Mgmt, 3 segments: jets 5/4/1;final speeds: -600/800/1500 rpm, done 21:48 " NOV,9,1999,313,1439,,"MDI Continuous Coverage, planned until Nov.16,13:30 UT" NOV,16,1999,320,1446,17:20,"Leonides roll in CRP: -113.42 deg. to position -120.992 deg.; TM in MR; SSR, SSU off" NOV,19,1999,323,1449,14:39,Leonides roll back in CRP: -114 deg. to position -6.12 deg.; TM in MR; done 18:30 NOV,19,1999,323,1449,22:16,"Mom.Mgmt, 1 segment : jet 4; final speeds: 2106/1439/-2127 rpm, done 23:40" NOV,20,1999,324,1450,0:20,"SK-19, Delta V = 6.8 cm/sec; jets 1/2/4/6: 27.9/28.4/1/1.3 sec on-time " NOV,20,1999,324,1450,1:00,"Mom.Mgmt, 2 segm.:jets 1/5; speeds: 2986/511/-1285 rpm, Hx=10.52 Nms; done 1:45" NOV,22,1999,326,1452,,Instruments Recovery from Leonides Ends NOV,28,1999,332,1458,11:55,"ESR-12, triggered by ACU Reset Monitoring" NOV,29,1999,333,1459,18:35,"Recovery to CRP, roll angle -125 deg" NOV,30,1999,334,1460,1:13,"Mom.Mgmt, 2 segments : jets 5/2; final speeds: 2021/-2389/1967 rpm, done 15:40" NOV,30,1999,334,1460,16:20,roll-back by 117.22 deg; to -7.219 deg; done 20:16 DEC,1,1999,335,1461,15:00,"Mom.Mgmt, 3 segments : jets 4/2/5; final speeds: 1750/1750/-1750 rpm, done 16:40" DEC,1,1999,335,1461,18:00,"SK-20, Delta V = 0.364 m/sec; jets 1/2/4/6; 148/151/5/6 sec. on-time" DEC,1,1999,335,1461,18:09,Guide star loss during station keeping; CRP mode fails to control the roll DEC,1,1999,335,1461,18:43,"ESR-13, triggered from ground; no roll control in CRP due to ACU TM buffer overrun" DEC,2,1999,336,1462,19:42,"Recovery to CRP, roll angle -67.67 deg" DEC,8,1999,342,1468,,"MDI Continuous Coverage, planned until Dec.13 at 14;00 UT" DEC,8,1999,342,1468,15:12,AOCS patch 11 uploaded (prelimenary fix of the ACU S/W to clear ACU errors in TM) DEC,8,1999,342,1468,16:45,"Mom.Mgmt, 3 segments : jets 5/1/3; final speeds: 730/-1615/2485 rpm, done 17:42" DEC,8,1999,342,1468,19:52,roll-back by 69.0 deg; to -6.565 deg; done 21:32 DEC,9,1999,343,1469,12:25,"Mom.Mgmt, 2 segments : jets 4/2; final speeds: 1624/1622/-1690 rpm, done 13:48" DEC,9,1999,343,1469,14:05,"SK-21, delta v = 0.73 m/s; in 4 segm.; jets 1/2/4/6; final speeds: 1680/1357/-1493 rpm " DEC,9,1999,343,1469,21:25,"Mom.Mgmt, 3 segm.: jets 4/1/5; final rpm's: 2790/609/-1292, done 23:12; Hx=10.1Nms" DEC,10,1999,344,1470,1:00,Back in Normal Mode DEC,29,1999,363,1489,17:32,UVCS closed door in anticipation of Y2K problems ,,,,,, JAN,7,2000,7,1498,0:28,"ESR-14, triggered by FSPAAD" JAN,10,2000,10,1501,15:15,"roll-back to -6 deg; Mom.Mgmt (19:00 UT), jets 5/1/4, to 1741/-1744/1764 rpm; " JAN,10,2000,10,1501,20:20,"SK-22, 3 segm., jets 1/2/4/6, deltaV=0.52 m/sec" JAN,11,2000,11,1502,15:10,"Mom.Mgmt, jets 2/4, to 2565/867/-1539 rpm; Hx=9.0 Nms" JAN,11,2000,11,1502,18:54,Normal Mode JAN,19,2000,19,1510,11:42,Automatic star swap #1 FEB,8,2000,39,1530,14:39,"Fall-back to CRP, back to Normal Mode 20:11" FEB,10,2000,41,1532,,"MDI Continuous, planned until February 15 at 07:50 UT" MAR,7,2000,67,1558,,"Uplink/ flight commissioning of ACU patch 9, patch 10, patch 12, patch 13 (until Mar.9)" MAR,23,2000,83,1574,15:36,"Reaction Wheel 4 maintenance, 21:25: SK-23, jets 1/2/4/6, deltaV=0.23 m/sec" MAR,23,2000,83,1574,22:30,"Mom.Mgmt, 7 burns, final speeds: -517/511/1512 rpm; Hx=7.4 Nms, in NM at 00:50" APR,3,2000,94,1585,,MDI continuous 3 month contact. First month best effort; prime from May 9-July 11 MAY,1,2000,122,1613,,Medoc Campaign #5; until May 21 JUL ,14,2000,196,1687,10:15,"Proton Flare X.5.7 in AR 9077; 24000 particle flux units; UVCS, CDS& CTOFcmd'd to safe status " JUL ,14,2000,196,1687,14:09,"3 Starswaps by AOCS due to the flare (at 14:09, 17:21 and 197/10:03)" JUL,18,2000,200,1691,14:00,"Mom.Mgmt, burn 1 jet 5, 30 min, speeds: -1518/1169/2020 rpm;" JUL,18,2000,200,1691,15:00,"SK-24, jets 1,2,4,6; two burns: 74&14 min, delta V: 0.52 & 0.09 m/sec" JUL,18,2000,200,1691,18:30,"Mom.Mgmt, burn 2 jet 4, 18 min, speeds: -903/1284/1237rpm;" JUL,18,2000,200,1691,19:00,"Mom.Mgmt, burn 3 jet 1, 19 min, speeds: -515/530/1614 rpm; overall fuel use: 0.68 kg" AUG,15,2000,228,1719,,MDI continuous until Aug. 29 at 05:50 AUG,26,2000,239,1730,1:06,Starswap by AOCS from star 4 (mv 6.6) to star 1 SEP,20,2000,264,1755,,MDI continuous until Sept.26 at 8:45 OCT,18,2000,292,1783,,MDI continuous until Oct.23 at 16:00 OCT,27,2000,301,1792,17:07,"Mom.Mgmt, jets 5&4, speeds from: -2483/871/1142 rpm to 2491/1429/-2224 rpm;" OCT,27,2000,301,1792,19:50,"Pros Clear burn: (2523/1407/-2212); SK-25, jets 1,2,4,6; one burn: 82 min, delta V:- 0.566 m/sec" OCT,27,2000,301,1792,23:05,"Mom.Mgmt, jets 3&1; final speeds:2973/530/-1807 rpm, overall fuel use: 0.68 kg" OCT,30,2000,304,1795,,"MEDOC Campaign #6, until Nov.13" NOV,9,2000,314,1805,0:00,"Proton Flare, lasted until Nov 10" NOV,29,2000,334,1825,0:19,"ESR-15, due to ACU reset; in CRP @ 10:58; Mom.Mgmt: 3 burns 19:10; start roll 20:58" NOV,30,2000,335,1826,1:55,roll back (142 deg) done; Mom.Mgmt burn 1: 16:15; SK-26: 17:15; Mom.Mgmt burn 2&3: 18:05 NOV,30,2000,335,1826,19:21,back to Normal Mode from ESR ,,,,,, JAN,14,2001,14,1871,21:02,"ESR-16, caused by ACU Reset" JAN,16,2001,16,1873,0:30,"roll back from -55 to -5.6 deg., completed 02:20" JAN,16,2001,16,1873,16:45,Mom.Mgmt burn 1 with jet 4; wheels from 277/-960/1124 to 587/-910/762 JAN,16,2001,16,1873,17:05,Mom.Mgmt burn 2 with jet 5; wheels go to 854/-921/1029 JAN,16,2001,16,1873,17:50,"SK-27: thrusters 1,2,4,and 6; delta V: 0.154 m/s, fuel:0.168 kg" JAN,16,2001,16,1873,18:50,Mom.Mgmt burn 1 with jet 3; wheels go from 865/-919/1038 to 390/1049/1644 JAN,16,2001,16,1873,19:15,Mom.Mgmt burn 2 with jet 2; wheels go to 309/351/991; Hx: 5.04 NMS JAN,16,2001,16,1873,20:35,Roll Profile to trim the final roll attitude (- 5.5 degrees); back in Normal Mode @ 20:49 FEB,8,2001,39,1896,18:26,"Offptg. for EIT (arcsec): Yaw: -225,-100,0,68,383,0; Pitch: -225,-100,0,68,383,30,0; done 21:00" FEB,22,2001,53,1910,17:00,SK -28: delta V: 2 mm/s; fuel 1.8 gram FEB,22,2001,53,1910,17:30,"Mom.Mgmt; jets 1 & 3, final speeds: -977; 501; 1023 rpm ; " FEB,28,2001,59,1916,,MDI continuous until May 31 at 1:50 APR,2,2001,92,1949,21:51,Proton event - X20 flare with elevated proton counts for 6 days APR,15,2001,105,1962,14:27,Proton event - X14 flare APR,18,2001,108,1965,3:00,Proton event MAY,14,2001,134,1991,0:00,"Medoc Campaign #7, until May 28" JUN,28,2001,179,2036,14:10,"SK-29: thrusters 2,3,4; delta V: 0.659 m/s, fuel: 0.55 kg; 76 min" JUN,28,2001,179,2036,15:55,"Mom.Mgmt; 3 segments: jets 5,4,1; final speeds: -335/327/1092 rpm" JUL,28,2001,209,2066,20:16,"ESR-17, caused by ACU reset; recovery to CRP 3:20" JUL,29,2001,210,2067,17:06,"roll back (by 158°) from 162° to 4 °, completed 22:46" JUL,30,2001,211,2068,0:14,"Mom.Mgmt; 3 segments: jets 3,1,5; final speeds: -522/585/1024 rpm" JUL,31,2001,212,2069,15:30,"SK-30: thrusters 1,2,4,and 6; delta V: 0.185 m/s, fuel: 0.202 kg" AUG,8,2001,220,2077,19:48,ACU Patch 15 uplinked (fixing RAM corruption by selfcheck); name: CSEA015 AUG,16,2001,228,2085,0:30,"Proton event; intensity dropping fast, so no instrument needed to be saved" AUG,29,2001,241,2098,,MDI continuous until Sept.4 at 8:32 SEP,24,2001,267,2124,9:36,"CME; X-ray flare (X2.6), peak @10:38; energetic particle event @12:00, lasting until 269/12:00" OCT,15,2001,288,2145,,"Medoc Campaign #8, until Oct.26" OCT,24,2001,297,2154,,MDI continuous until Oct.30 at 9:25 NOV,3,2001,307,2164,20:09,Start of X-panel heater switch-down in 10% steps; completed Nov. 19 at 18:51 NOV,4,2001,308,2165,16:00,"proton event, X1 flare at 16:03; CTOF powered off after limit violation until Nov 19 @ 19:17" NOV,7,2001,311,2168,7:20,"SK-31: jets 1,2,4,5; delta V: 0.02 m/s, fuel: 0.02 kg; Mom.Mgmt: 3 segm.; speeds: -487/215/2477" NOV,14,2001,318,2175,12:00,Science roll: from 6.5 ° to 330° in 30°steps; back to 270°- overnight stay; back to 6.5° next day NOV,20,2001,324,2181,14:45,Tank heating thresholds changed from 18-23° to 20-21° NOV,22,2001,327,2184,21:00,"Proton event; M9.9 flare, lasting until Nov.24 @ 13:00; CDS safed Nov.24" DEC,26,2001,360,2217,5:00,"Proton event, went on until 15:00" ,,,,,, JAN,15,2002,15,2237,16:30,"SK-32: jets 1,2,4,6; dV: 0.048m/s; fuel 0.053 kg Mom.Mgmt: 3 segm.; speeds: -322/328/1824" FEB,5,2002,36,2258,2:39,"ESR-18: main bus voltage drop. Probable cause: ""Tin Wiskers""" FEB,8,2002,39,2261,14:00,"SK-33: jets 1,2,4,6; dV: 0.26m/s; Mom.Mgmt: 3 segm.; speeds: -1006/629/898; done 17:05" MAR,13,2002,72,2294,23:06,"Both battery1 BDRs configured OFF, since battery 1 lost" MAR,24,2002,83,2305,,"MDI 60-Day Continuous until 05:00 UT, June 3" APR,21,2002,111,2333,1:30,Proton event - X1 flare JUN,3,2002,154,2376,13:30,"SK-34: jets 2,3,4,5; dV: 0.87m/s; Mom.Mgmt: 3 segm.; speeds: --404/483/1639 rpm; done 17:01" JUN,19,2002,170,2392,,MDI 5-Day Continuous until 4:20 June 23 JUN ,20,2002,171,2393,10:07,Kevlar Cutter electronics switched ON (to STBY) to reduce batt2 charge current by 20/40 mA JUL,17,2002,198,2420,,MDI 5-Day Continuous until 7:00 July 22 AUG,20,2002,232,2454,11:00,EIT Off-pointing (in NM&HR); 19 steps; max absolute off-pntg (arcsec): yaw: 720; pitch: 798 AUG,28,2002,240,2462,,MDI Continuous until 8:30 on September 2 SEP,4,2002,247,2469,17:00,Tank heating limits changed to 25.5/26.5 °C SEP,26,2002,269,2491,,MDI 5-Day Continuous until 17:10 on September 30 OCT,7,2002,280,2502,20:18,Pros ring heater ON with duty cycle 100% OCT,10,2002,283,2505,15:10,"SK-35: jets 2,3,4,5; dV: 0.245m/s; Mom.Mgmt: 3 segm.; speeds: --318/386/1168 rpm; done 17:50" OCT,16,2002,289,2511,13:12,CAE B switched ON to monitor branch B pressure OCT,21,2002,294,2516,0:00,"Medoc Campaign # 10, until Nov.3" NOV,19,2002,323,2545,,CAE telemetry swap between CAE A and CAE B once a week for branch press.survey ,,,,,, JAN,20,2003,20,2607,,MDI Best Effort Continuous until February 16 FEB,27,2003,58,2645,,MDI 5-Day Continuous until 7:55 on March 3 MAR,26,2003,85,2672,,MDI 5-Day Continuous until 7:25 on March 31 APR,26,2003,116,2703,,MDI Continuous until 6:30 on Apr.27 (original plan was to start Apr.23) MAY,5,2003,125,2712,0:00,"Comms Backup triggered by HGA monitoring on antenna Z-axis, Anomaly S3-0017" MAY,14,2003,134,2721,11:10,"GOLF switch-off by itself; turned back ON May 19, 2003" MAY,19,2003,139,2726,0:00,"Medoc Campaign # 11, until June 1" MAY,25,2003,145,2732,8:00,Stop HGA movements after 2003/05/25 08:00 (investigation of HGA anomaly; OCD 1779) JUN,4,2003,155,2742,16:25,HGA pattern/pointing test JUN,11,2003,162,2749,15:10,"SK-37: jets 2,3,4,5; dV: 0.41m/s; Mom.Mgmt: 3 segm.; speeds: --555/402/1417 rpm; done 17:51" JUN,18,2003,169,2756,15:30,HGA pattern/pointing test JUN,18,2003,169,2756,,MDI 5-Day Continuous until 14:45 on June 23 JUN,19,2003,170,2757,18:05,HGA moves ok with APME-A and APME-B motor currents used in parallel JUN,25,2003,176,2763,18:35,SSR Memory Unit 15 switched back ON JUN,27,2003,178,2765,,Beginning of June keyhole period JUL,1,2003,182,2769,10:00,HR downlink on 34 m station lost as expected (HGA off-point from LOS to earth: 12.75 °) JUL,8,2003,189,2776,0:15,ESR-19 caused by FSPAAD JUL,8,2003,189,2776,17:40,"SK-38: jets 1,2,4,6; dV: -0.12 m/s; Mom.Mgmt: 2 segm.; speeds: 1154/-722/-1982 rpm" JUL,8,2003,189,2776,13:24,"Roll 180 ° to prepare for next HGA ""sweet spot"" speeds : --2704/722/432. Position = inverted" JUL,14,2003,195,2782,,End of June keyhole period JUL,14,2003,195,2782,15:47,Warm start-up due to too tightly spaced mode 3 commands (for APME dual coil commands) JUL,23,2003,204,2791,,"MDI 5-day continuous til June 28, 14:05" AUG,7,2003,219,2806,14:25,APME Z axis dual coil command to confirm the exact off-pointing.Off-pointing confirmed. Result is -17.9 degrees AUG,27,2003,239,2826,,MDI 5-Day Continuous until September 1 SEP,2,2003,245,2832,18:10,Test in Low Rate by 26m station. SEP,10,2003,253,2840,,MDI 60-Day Continuous until November 23 SEP,23,2003,266,2853,,Beginning of September keyhole period SEP,29,2003,272,2859,,Transponder Swap (1->2) OCT,7,2003,280,2867,8:45,"SK-39: jets 2,3,4; dV : 0.14m/s" OCT,7,2003,280,2867,9:15,Momentum Management 3 segments. Final speeds --1330/--308/1860 rpm OCT,7,2003,280,2867,11:10,"180 ° Roll, satellite back to regular position. Final speeds : 1561/312/--1630 rpm" OCT,11,2003,284,2871,,Transponder Swap (2->1) OCT,19,2003,292,2879,,End of September keyhole period OCT,20,2003,293,2880,,Increase Ground Limits for QTR26 : FPSS temp going up due to aging OCT,28,2003,301,2888,,Proton storm (one guide star swap and one star declared ineligible) NOV,3,2003,307,2894,20:08,Beginning of Z axis movements for a ten day period as per OCD #1860 NOV,17,2003,321,2908,0:00,"MEDOC Campaign #12, until November 30" NOV,17,2003,321,2908,6:05,End of Z axis improvement (OCD#1860) NOV,17,2003,321,2908,19:30,OCD #1865 Single coil Z axis movement try (post OCD#1860) : failed DEC,1,2003,335,2922,20:00,Beginning of Z axis movements for a ten day period as per OCD #1873 DEC,11,2003,345,2932,19:00,OCD #1875 Single coil Z axis movement try (post OCD#1873) : failed DEC,18,2003,352,2939,13:00,OCD#1877 Test to operate SSR and TR simultaneously DEC,23,2003,357,2944,,Beginning of December keyhole period DEC,26,2003,360,2947,,Transponder Swap (1->2) DEC,30,2003,364,2951,17:00,"SK-40: jets 2,3,4; dV : 0.007349 m/s" DEC,30,2003,364,2951,17:45,Momentum Management 3 segments. Final speeds 1200/400/--800 rpm DEC,30,2003,364,2951,19:00,"180 ° Roll, satellite in inverted position. Final speeds : --400/--400/1600 rpm" ,,,,,, JAN,6,2004,6,2958,,Transponder Swap (2->1) JAN,9,2004,9,2961,,End of December keyhole period JAN,28,2004,28,2980,,MDI 5-Day Continuous until February 2 JAN,31,2004,31,2983,11:20,First day of telemetry outage (2 minutes duration) from Madrid D66 station. RFI with MSG after it has been moved from 10 deg west to 3.6 deg west. FEB,11,2004,42,2994,,MDI 5-Day Continuous until February 16 FEB,22,2004,53,3005,14:22,Last day of telemetry outage (2 minutes duration) from Madrid D66 station. RFI with MSG. FEB,23,2004,54,3006,16:00,"GSFC/JPL teleconference about receivers sweep times. Major conclusions: - DSN will do its best to perform only one sweep cycle to lock onto the receivers - SOHO project has agreed that it may take more than one cycle to lock since this longer duration should not harm the spacecraft receivers." MAR,16,2004,76,3028,,Beginning of March keyhole period MAR,19,2004,79,3031,,Transponder Swap (1->2) MAR,30,2004,90,3042,,"SK-41: jets 2,3,4; dV : 0.008567 m/s" MAR,30,2004,90,3042,,Momentum Management 3 segments. Final speeds --1185/--520/2245 rpm MAR,30,2004,90,3042,,"180 ° Roll, satellite back to regular position. Final speeds : 1735/520/--1700 rpm" APR,2,2004,93,3045,,"VIRGO switched-off by itself; turned back ON Apr 3, 2004" APR,3,2004,94,3046,,Transponder Swap (2->1) APR,7,2004,98,3050,,End of March keyhole period APR,21,2004,112,3064,5:37,ESR 20 triggered by FSPAAD APR,22,2004,113,3065,7:27,ESR 21 triggered by FSPAAD APR,22,2004,113,3065,16:12,ESR 22 triggered by FSPAAD APR,23,2004,114,3066,23:37,ESR 23 triggered by FPSS Sun Presence monitoring APR,27,2004,118,3070,17:05,"SK-42: jets 1,2,4,6; dV: 0.7349 m/s" APR,27,2004,118,3070,19:20,Momentum Management 3 segments. Final speeds: --1275/340/1205 rpm MAY,24,2004,145,3097,,MDI 5-Day Continuous until June 6 JUN,3,2004,155,3107,0:00,"MEDOC Campaign #13, until June 17" JUN,16,2004,168,3120,,Beginning of June keyhole period JUN,19,2004,171,3123,,Transponder Swap (1->2) JUN,22,2004,174,3126,,"SK-43: jets 2,3,4; dV : 0.476 m/s" JUN,22,2004,174,3126,,"180 ° Roll, satellite in inverted position. Final speeds : 2250/--665/--1085 rpm" JUN,30,2004,182,3134,,Transponder Swap (2->1) JUL,3,2004,185,3137,,End of June keyhole period JUL,4,2004,186,3138,,MDI 60-Day Continuous until September 5 SEP,5,2004,249,3201,6:34,"Spacecraft transitioned to CRP mode due to SSU reset. Tracking windows of two stars became too close to each other leading the SSU software into an endless loop." SEP,11,2004,255,3207,,Beginning of September keyhole period SEP,17,2004,261,3213,,Transponder Swap (1->2) SEP,21,2004,265,3217,,"180 ° Roll, satellite back to regular position. Final speeds : --1285/430/870 rpm" SEP,21,2004,265,3217,,"SK-44: jets 1,2,4,6; dV : 0.01516 m/s" SEP,21,2004,265,3217,,Momentum Management 3 segments. Final speeds: --435/395/495 rpm SEP,21,2004,265,3217,,"""Intermittent recording"" patch upload" SEP,22,2004,266,3218,,"Patch ""intermittent recording"" test; subset #3" SEP,24,2004,268,3220,,"Patch ""intermittent recording"" activation; subset #6" SEP,29,2004,273,3225,,"SSR dump with ""intermittent recording"" data. Successful session" OCT,1,2004,275,3227,,Transponder Swap (2->1) OCT,8,2004,282,3234,,End of September keyhole period OCT,22,2004,296,3248,,First day of telemetry outage from Madrid D66 station. Suspected RFI with P92-3 USAF satellite. NOV,3,2004,308,3260,,MDI 5-Day Continuous until November 7 NOV,8,2004,313,3265,,"MEDOC Campaign #14, until November 21" NOV,12,2004,317,3269,,"Last day of telemetry outage from Madrid D66 station. Suspected RFI with P92-3 USAF satellite. RFI durations of a couple of minutes around 10:45 UT occurred on: Oct 22 & 24; Nov 1,2,3,6,7,10 & 12 " DEC,1,2004,336,3288,,MDI 5-Day Continuous until December 5 DEC,8,2004,343,3295,21:59,ESR-24 triggered by CSPAAD (false trigger) DEC,9,2004,344,3296,16:20,"--162.346 deg roll + Momentum Management 3 segments as part of the ESR-24 recovery. Final speeds: --600/3400/--1510 rpm" DEC,12,2004,347,3299,,Beginning of December keyhole period DEC,16,2004,351,3303,,Transponder Swap (1->2) DEC,21,2004,356,3308,,"SK-45: jets 1,2,4,6; dV: 0.3358 m/s" DEC,21,2004,356,3308,,Momentum Management 3 segments. Final speeds: 1165/455/--835 rpm DEC,21,2004,356,3308,,"180 ° Roll, satellite in inverted position. Final speeds: --380/--455/1615 rpm" DEC,26,2004,361,3313,,Transponder Swap (2->1) DEC,26,2004,361,3313,20:00,SSR Memory Unit #11 switched off by itself DEC,30,2004,365,3317,,End of December keyhole period ,,,,,, JAN,20,2005,20,3338,,"Major flare (18-21 Jan). Led to many anomalies, in particular multiple star swaps on Jan 20." JAN,24,2005,24,3342,19:15,SSR Memory Unit #11 switched back ON FEB,3,2005,34,3352,,MDI 4-Day Continuous until February 6 FEB,18,2005,49,3367,,"FSPAAD state indicated ""detected""" MAR,3,2005,62,3380,,Beginning of March keyhole period MAR,10,2005,69,3387,,Transponder Swap (1->2) MAR,22,2005,81,3399,,"SK-46: jets 2,3,4; dV: 0.1137 m/s" MAR,22,2005,81,3399,,Momentum Management 3 segments. Final speeds: --974/--400/2272 rpm MAR,22,2005,81,3399,,"180 ° Roll, satellite back to regular position. Final speeds: 1885/400/--1370 rpm" MAR,24,2005,83,3401,,Transponder Swap (2->1) MAR,31,2005,90,3408,,End of March keyhole period MAR,31,2005,90,3408,,MDI 5-Day Continuous until April 4 APR,8 & 9,2005,98,3416,,"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 (spurious LCL OFF) MAY,26,2005,146,3464,18:58,APME A switched back ON JUN,2,2005,153,3471,15:00,HGA moved thru APME A around Y axis by -35 steps to get a fine pulse (whole APME A loop control) JUN,5,2005,156,3474,,Beginning of June keyhole period JUN,9,2005,160,3478,,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 ° 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 deg (June 20 16:00) JUN,18,2005,169,3487,7:54,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,1,2005,244,3562,18:15,Tape Recorder maintenance SEP,6,2005,249,3567,,Transponder Swap (1->2) SEP,8,2005,250,3568,,"SK-48: jets 2,3,4; dV: 0.089 m/s" SEP,8,2005,250,3568,,Momentum Management 3 segments. Final speeds: --1495/--425/1500 rpm SEP,8,2005,250,3568,,"180 ° Roll, satellite back to regular position. Final speeds: 1080/425/--1910 rpm" SEP,9,2005,252,3570,,Star swap 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,23,2005,286,3604,,Star swap NOV,9,2005,313,3631,,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,3,2005,337,3655,,Beginning of December keyhole period DEC,6,2005,340,3658,,Transponder Swap (1->2) DEC,14,2005,348,3666,,Upload of SSR patch . Sofware 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 ° 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 ,,,,,, JAN,5,2006,5,3688,,MDI 3-Day Continuous until January 07 FEB,3,2006,34,3717,,MDI 4-Day Continuous until February 06 FEB,3,2006,34,3717,,SSR Program Memory Cleanup (OCD 2104) FEB,22,2006,53,3736,,"Beginning of ""March"" keyhole period" FEB,28,2006,59,3742,,Transponder Swap (1->2) MAR,7,2006,66,3749,,"SK-50: jets 2,3,4; dV: 0.0155 m/s" MAR,7,2006,66,3749,,Momentum Management 3 segments. Final speeds: --997/--403/2287 rpm MAR,13,2006,72,3755,,"180 ° Roll, satellite back to regular position. Final speeds: 1925/395/--1445 rpm" MAR,16,2006,75,3758,,Transponder Swap (2->1) MAR,22,2006,81,3764,,End of March keyhole period MAR,22,2006,81,3764,,MDI 60-Day Continuous period until May 21 MAR,23,2006,82,3765,,"MEDOC Campaign #16, until April 02" MAR,27,2006,86,3769,,Investigations using oversampling facility begin (OCD 2120) APR,29,2006,119,3802,11:42,SSR Memory Units 0 to F switched off by themselves MAY,4,2006,124,3807,,SSR Memory Units 0 to F switched back ON (OCD 2126) MAY,27,2006,147,3830,,"Beginning of ""June"" keyhole period" MAY,31,2006,151,3834,,Transponder Swap (1->2) JUN,2,2006,153,3836,,Tank and branch B PROS pressures equalization (OCD 2130) JUN,6,2006,157,3840,,"SK-51: jets 2,3,4; dV: 0.1042 m/s" JUN,6,2006,157,3840,,Momentum Management 3 segments. Final speeds: 705/370/--770 rpm JUN,6,2006,157,3840,,"180 ° Roll, satellite in inverted position. Final speeds: --405/--370/1070 rpm" JUN,6,2006,157,3840,,Back to SSU Patch 2A + Change magnitude check limit (OCD 2129) JUN,8,2006,159,3842,,HGA moved to end of keyhole position JUN,11,2006,162,3845,,Transponder Swap (2->1) JUN,15,2006,166,3849,,End of June keyhole period JUL,12,2006,193,3876,,MDI 4-Day Continuous until July 15 JUL,24,2006,205,3888,,Switched MDI TM/TC to redundant side after anomaly S06-0045 AUG,21,2006,233,3916,,"Beginning of ""September"" keyhole period" AUG,28,2006,240,3923,,Transponder Swap (1->2) SEP,6,2006,249,3932,,"SK-52: jets 1,2,4,6; dV: -0.1688 m/s" SEP,6,2006,249,3932,,Momentum Management 3 segments. Final speeds: --1505/--395/1695 rpm SEP,11,2006,254,3937,,"180 ° Roll, satellite back to regular position. Final speeds: 1315/415/--1935 rpm" SEP,11,2006,254,3937,,HGA moved to end of keyhole position SEP,13,2006,256,3939,,Transponder Swap (2->1) SEP,20,2006,263,3946,,End of September keyhole period OCT,12,2006,285,3968,,MDI 4-Day Continuous until October 15 NOV,10,2006,314,3997,,MDI 4-Day Continuous until November 13 NOV,24,2006,328,4011,,"Beginning of ""December"" keyhole period" NOV,27,2006,331,4014,,Transponder Swap (1->2) DEC,5,2006,339,4022,,"SK-53: jets 1,2,4,6; dV: -0.0967 m/s" DEC,5,2006,339,4022,,Momentum Management 3 segments. Final speeds: 1200/400/--805 rpm DEC,5,2006,339,4022,,"180 ° Roll, satellite in inverted position. Final speeds: --410/--395/1585 rpm" DEC,7,2006,341,4024,,HGA moved to end of keyhole position DEC,8,2006,342,4025,,Transponder Swap (2->1) DEC,11,2006,345,4028,,End of December keyhole period ,,,,,, JAN,6,2007,6,4054,,MDI 3-Day Continuous until January 08 JAN,27,2007,27,4075,,"SUMER redundant LCL spuriously switched ON. As corrective action, all instruments LCL's switched OFF" FEB,1,2007,32,4080,,MDI 5-Day Continuous until February 05 FEB,13,2007,44,4092,,"Beginning of ""February/March"" keyhole period" FEB,19,2007,50,4098,,Transponder Swap (1->2) FEB,27,2007,58,4106,,"SK-54: jets 2,3,4; dV: 0.123 m/s" FEB,27,2007,58,4106,,Momentum Management 3 segments. Final speeds: --980/--405/2270 rpm MAR,5,2007,64,4112,,"180 ° Roll, satellite in normal position. Final speeds: 1910/410/-1430 rpm" MAR,5,2007,64,4112,,HGA moved to end of keyhole position MAR,6,2007,65,4113,,Transponder Swap (2->1) MAR,12,2007,71,4119,,"End of ""February/March"" keyhole period" MAR,28,2007,87,4135,,OCD 2229 executed: Existing macro space compacted in preparation for the TCM-in-Macros patch MAR,29,2007,88,4136,,OCD 2225 executed: ACU mapping data cleared before a star mapping MAR,30,2007,89,4137,,MDI 4-Day Continuous until April 2 APR,16,2007,106,4154,,"MEDOC Campaign #17, until April 22" APR,17,2007,107,4155,,"OCD 2232 executed: Upload of COBS Patches for Automated Operations (TCM in Macros and RW Speed Limits Updating)" APR,26,2007,116,4164,,MDI 4-Day Continuous until April 29 MAY,15,2007,135,4183,,Upload of new standard monitorings 30-32 and associated macros 15-17 for automation (TCM in macros) MAY,18,2007,138,4186,,"Beginning of ""May/June"" keyhole period" MAY,21,2007,141,4189,,Transponder Swap (1->2) MAY,29,2007,149,4197,,"SK-55: jets 1,2,4,6; dV: -0.058 m/s" MAY,29,2007,149,4197,,Momentum Management 3 segments. Final speeds: 680/390/--775 rpm MAY,29,2007,149,4197,,"180 ° Roll, satellite in inverted position. Final speeds: --400/--375/1060 rpm" MAY,31,2007,151,4199,,HGA moved to end of keyhole position JUN,1,2007,152,4200,,Transponder Swap (2->1) JUN,6,2007,157,4205,,"End of ""May/June"" keyhole period" JUL,19,2007,200,4248,,MDI 4-Day Continuous until July 23 AUG,11,2007,223,4271,,"Beginning of ""Aug/Sep"" keyhole period" AUG,18,2007,230,4278,,Transponder Swap (1->2) AUG,30,2007,242,4290,,"SK-56: jets 1,2,3,6; dV -0.195 m/s" AUG,30,2007,242,4290,,Momentum Management 3 segments. Final speeds: --1454/--497/1726 rpm AUG,31,2007,243,4291,,"180 ° Roll, satellite in normal position. Final speeds: 1234/505/--1954" SEP,3,2007,246,4294,,Transponder Swap (2->1) SEP,4,2007,247,4295,,Power cycle APME-A SEP,9,2007,253,4301,,"End of ""Aug/Sep"" keyhole period" OCT,26,2007,299,4347,,MDI 3-day Continuous until Oct 28 NOV,15,2007,319,4367,,"Beginning of ""November"" keyhole period" NOV,18,2007,322,4370,,Transponder Swap (1->2) NOV,20,2007,324,4372,,"180 ° Roll, satellite in inverted position. Final speeds: -1045/-560/840 rpm. HGA moved to end of keyhole position." NOV,27,2007,331,4379,,"SK-57: jets 2,3,4; dV: 0.045 m/s. Momentum management 3 segments. Final speeds: -360/-410/1595" NOV,29,2007,333,4381,,Transponder Swap (2->1) DEC,2,2007,336,4384,,"End of ""November"" keyhole period" DEC,3,2007,337,4385,,MDI 60-day Continuous until Feb 3 2008 DEC,9,2007,343,4391,6:31,"SWAN LCL switched off, Experiment LCL monitoring triggered at 06:34" DEC,17,2007,351,4399,,"FPSS Standard Monitoring channels 20, 21 changed to filter value 6 and trigger macro 14 (ESR)" ,,,,,, JAN,24,2008,24,4437,,Tank and branch B PROS pressures equalization (OCD 2130 repeated) FEB,3,2008,34,4447,,End of MDI 60-day continuous campaign FEB,4,2008,35,4448,,"Beginning of ""February"" keyhole period" FEB,11,2008,42,4455,,Transponder Swap (1->2) FEB,19,2008,50,4463,,"SK-58: jets 2,3,4; dV: 0.096 m/s." FEB,22,2008,53,4466,,"Momentum management 3 segments (jets 5,2,3). 180° Roll, satellite in normal position. Final wheels speeds: 1906/400/-1397" FEB,25,2008,56,4469,,Transponder Swap (2->1) MAR,2,2008,62,4475,,"End of ""February"" keyhole period" MAR,3,2008,63,4476,,MDI 60-day continuous until May 4 2008 APR,9,2008,100,4513,,Add new COBS macro (OCD2311) for SSR almost full MAY,7,2008,128,4541,,"Beginning of ""May"" keyhole period" MAY,10,2008,131,4544,,Transponder Swap (1->2) MAY,19,2008,140,4553,15:55,"SK-59: jets 1,2,4,6; dV -0.08 m/s" MAY,19,2008,140,4553,,"Momentum management 3 segments (jets 3,5,1). 180° Roll, satellite in inverted position. Final wheels speeds: -440/-315/1070. Start using ""extended HGA table"" (covers the whole period between two Key Holes)." MAY,22,2008,143,4556,,Transponder Swap (2->1). TC Watchdog set to 48 hours (as per UB55). MAY,25,2008,145,4558,,"End of ""May"" keyhole period" JUN,23,2008,175,4588,,SUMER campaign until July 3 JUL,2,2008,184,4597,,Correction of COBS Scheduler bug JUL,9,2008,191,4604,,MDI 4-day continuous until July 13 AUG,1,2008,212,4625,,"Beginning of ""August"" keyhole period" AUG,7,2008,220,4633,,Transponder Swap (1->2) ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,,