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 |
