14 December 2017 - Mission Day: 8049 - DOY: 348
OPERATIONS
 
Science Operations
 
 

DOY = day-of-the-year; FD = Flight date. Times are in UTC.

    Month Day Year DOY FD Time Event
    JAN 7 2000 7 1498 00:28 ESR-14 by a spurious offpointing segment in the attitude anomaly detector
    JAN 7 2000 7 1498 21:22 Recovery to CRP, roll angle -24.87 deg.
    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 11:40 MDI Continuous, planned until February 15 at 07:50 UT.
    MAR 7 2000 67 1558 - Uplink and flight commissioning of AOCS S/W patches 9,10,12,13 (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 20:30 Mom. Mgmt, 7 burns, final speeds: -517/511/1512 rpm; Hx = 7.4 Nms, in NM at 00:50
    APR 3 2000 94 1585 - Start of 3-month continuous contact. First month best effort. Prime Continuous from May 9 - July 11.
    MAY 1 2000 122 1613 - MEDOC Campaign #5 until May 21.
    JUL 14 2000 196 1687 10:15 An X5.7 flare from AR 9077 with a large proton "blizzard" occurred. UVCS ramped down their detector high voltages. CDS NIS detector voltage powered off and disabled science processor. CELIAS CTOF was turned off. Instruments waited until after the July 18 maneuvers to make a full recovery. CELIAS CTOF turned back on July 24.
    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: -903/1284/1237 rpm
    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 15:15 MDI Continuous until Aug. 29 at 05:50 UT
    AUG 26 2000 239 1730 01:06 Starswap by AOCS from star 4 (mv 6.6) to star 1
    SEP 20 2000 264 1755 16:20 MDI Continuous until Sept. 26 at 08:45 UT.
    OCT 18 2000 292 1783 04:25 MDI Continuous until Oct. 23 at 16:00 UT.
    OCT 27 2000 301 1792 17:07 Momentum Management, burn 1 jet 5, 27 min, speeds: from: -2483/871/1142 rpm to -1360/820/2261 rpm
    OCT 27 2000 301 1792 17:47 Momentum Management, burn 2 jet 4, 107.3 min, speeds 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 Momentum Management, burn 3 jet 3; 1 min 45 sec, speeds: 2536/1382/-2233 rpm
    OCT 27 2000 301 1792 23:15 Momentum Management, burn 4 jet 1; 22 min, speeds: 2973/530/-1807 rpm; overall fuel use: 0.68 kg
    OCT 30 2000 304 1795 - MEDOC Campaign #6, until November 13.
    NOV 9 2000 314 1805 00:00 Proton Flare, lasted until 315.
    NOV 29 2000 334 1825 00:19 ESR-15, caused by ACU reset; recovery to CRP @ 10:58; Mom. Mgmt: 3 burns 19:10; roll: 20:58.
    NOV 30 2000 335 1826 01:55 Roll back (142 deg) complete; Mom. Mgmt burn1: 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

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