OPERATIONS
Science Operations
DOY = day-of-the-year; FD = Flight date. Times are in UTC.
| Month | Day | Year | DOY | FD | Time | Event |
| JAN | 18 | 2003 | 018 | 2605 | 09:16 | MDI 3-Month Dynamics--Best Effort Continuous Contact Month until 04:20 UT, February 16 |
| FEB | 25 | 2003 | 056 | 2643 | 15:00 | Station Keeping #36: jets 2,3,4,5; delta V: 0.64m/s; Momentum Management: 3 segm.; speeds: -407/410/1219 rpm; done 18:25 UT |
| FEB | 27 | 2003 | 058 | 2645 | 00:50 | MDI 5-Day Continuous Contact until 04:24 UT, March 04 |
| MAR | 26 | 2003 | 085 | 2672 | 11:05 | MDI 5-Day Continuous Contact until 17:27 UT, April 01 |
| APR | 23 | 2003 | 113 | 2700 | 20:03 | MDI Continuous Contact until 01:18 UT, April 27--Original plan was to start CC on April 28 |
| MAY | 05 | 2003 | 125 | 2712 | 00:00 | 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 | 00:00 | MEDOC #11, through June 1 |
| MAY | 25 | 2003 | 145 | 2732 | 08:00 | Stop HGA movements after 2003/05/25 08:00 (investigation of HGA anomaly; OCD 1779) |
| JUN | 04 | 2003 | 155 | 2742 | 16:25 | HGA pattern/pointing test |
| JUN | 11 | 2003 | 162 | 2749 | 15:10 | Station Keeping #37: jets 2, 3, 4, 5; dV: 0.41m/s; Mommentum Management: 3 segm.; speeds: -555/402/1417 rpm; done 17:51 |
| JUN | 18 | 2003 | 169 | 2756 | 15:30 | HGA pattern/pointing test |
| JUN | 19 | 2003 | 170 | 2757 | 15:43 | MDI 5-Day Continuous Contact (ended on June 23 at 14:15 UT) |
| 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 | 179 | 2765 | - | Beginning of June keyhole period |
| JUL | 01 | 2003 | 182 | 2769 | 10:00 | HR downlink on 34 m station lost as expected (HGA off-point from LOS to earth: 12.75 M-0) |
| JUL | 08 | 2003 | 189 | 2776 | 00:15 | ESR-19 caused by FSPAAD |
| JUL | 08 | 2003 | 189 | 2776 | 13:24 | Roll 180 M-0 to prepare for next HGA "sweet spot," speeds: -2704/722/432 |
| JUL | 08 | 2003 | 189 | 2776 | 17:40 | Station Keeping #38: jets 1,2,4,6; dV: -0.12 m/s; Momentum Management: 2 segm.; speeds: 1154/-722/-1982 rpm |
| JUL | 14 | 2003 | 195 | 2782 | 12:30 | 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 | 15:42 | MDI 5-Day Continuous Contact until July 28, 10:40 |
| AUG | 07 | 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 | 12:03 | MDI 5-Day Continuous Contact until September 1, 06:47 UT. |
| SEP | 02 | 2003 | 245 | 2832 | 18:10 | Test in Low Rate by 26 meter station |
| SEP | 09 | 2003 | 252 | 2839 | 17:03 | 60-Day Quasi-MDI Continuous Contact with SOHO Keyhole until September 23 at 22:02 UT |
| SEP | 22 | 2003 | 265 | 2852 | - | All passes HR downlinks on 34 meter stations (loss of HR downlinks on 26 meter stations expected on Sept. 23) |
| SEP | 23 | 2003 | 266 | 2853 | - | Beginning of September keyhole period |
| SEP | 28 | 2003 | 271 | 2858 | - | All passes downlink on 70 meter stations (loss of HR downlinks on 34 meter stations expected on Sept. 28) |
| OCT | 07 | 2003 | 280 | 2867 | 08:45 | Station Keeping #39: jets 2,3,4; dV: 0.14m/s |
| OCT | 07 | 2003 | 280 | 2867 | 09:15 | Momentum Management: 3 segments; final speeds: -1330/-308/1860 rpm |
| OCT | 07 | 2003 | 280 | 2867 | 11:10 | 180 M-0 Roll to prepare for next HGA "sweet spot." Final speeds: 1561/312/-1630 rpm |
| OCT | 18 | 2003 | 292 | 2879 | 01:16 | 60-Day Quasi-MDI Continuous Contact with SOHO Keyhole until November 24 at 02:07 UT |
| OCT | 19 | 2003 | 292 | 2879 | 19:46 | 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 | - | Guide star swap and one star declared ineligible due to proton storm |
| NOV | 03 | 2003 | 307 | 2894 | 20:08 | Beginning of Z axis movements for a ten-day period as per OCD #1860 |
| NOV | 17 | 2003 | 321 | 2908 | 00:00 | MEDOC Campaign #12, until November 30 |
| NOV | 17 | 2003 | 321 | 2908 | 06:05 | 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 | 01 | 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 | 30 | 2003 | 364 | 2951 | 17:00 | Station Keeping #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 M-0 Roll to prepare for next HGA "sweet spot." Final speeds: -400/-400/1600 rpm |
