Mission Operations Days: 2003/060 to 2003/066
March 01, 2003 00:00:00 GMT to March 07, 2003 00:00:00 GMT
Aqua Spacecraft and MODIS Instrument Status:
| PM-1 "Aqua" is in Fine Pointing Normal Mode FM1 MODIS is in B-Side Nominal Science Mode |
||
|---|---|---|
| Component | State(s) | Comment |
| Blackbody | A Off; B On (285K) | Nominal Science Mode |
| Calibration Electronics | A Off; B On | Nominal Science Mode |
| Control Processor | A Off; B On | Nominal Science Mode |
| Nadir Door | Unlatched, Open | Nominal Science Mode |
| Space View Door | Unlatched, Open | Nominal Science Mode |
| Solar Diffuser Door | Unlatched, Closed | Nominal Science Mode |
| FDDI Formatter | A Off; B On | Nominal Science Mode |
| FDDI Port | A Off; B On | Nominal Science Mode |
| FIFO Memory | #1 & #2 Off; #3 & #4 On | Nominal Science Mode |
| Format Processor | A Off; B On | Nominal Science Mode |
| Power Supplies | #1 Off, #2 On | Nominal Science Mode |
| PV VIS FPA | A Off; B On | Nominal Science Mode |
| PV NIR FPA | A Off; B On | Nominal Science Mode |
| PV SMIR FPA | A Off; B On | Nominal Science Mode |
| PV LWIR FPA | A Off; B On | Nominal Science Mode |
| PC LWIR FPA | A Off; B On | Nominal Science Mode |
| RC Outgas Heaters | All 3 (CS, IS, OS) Off | Nominal Science Mode |
| RC LWIR FPA Heater | Off | Nominal Science Mode |
| RC SMIR FPA Heater | On (83K) | Nominal Science Mode |
| Scan Assembly | A Off; B On | Nominal Science Mode |
| SDSM | Off | Nominal Science Mode |
| SRCA | Off | Nominal Science Mode |
| PS1 Survival Heaters | Enabled | Nominal Science Mode |
| PS2 Survival Heaters | Enabled | Nominal Science Mode |
| Timing Generator | A Off; B On | Nominal Science Mode |
| Flight Software | Rev BJ | Nominal Science Mode |
| Inhibit Ids Set | None | Nominal Science Mode |
This Week's Completed MODIS Activities:
Saturday, March 1, 2003
None
Sunday, March 2, 2003
None
Monday, March 3, 2003
2003/062 16:40:07-16:54:05 MCL MOD_OA16_SDSM_SCREEN.2 OA-16: SD/SDSM Screened - B Side
2003/062 18:19:01-18:32:59 MCL MOD_OA15_SDSM_OPEN.1 OA-15: SD/SDSM Opened - B Side
Tuesday, March 4, 2003
None
Wednesday, March 5, 2003
None
Thursday, March 6, 2003
None
Friday, March 7, 2003
None
This Week's Scheduled MODIS Activities Not Completed:
None
Upcoming MODIS Events:
Monday, March 10, 2003
2003/069 20:04:38-20:18:36 MCL MOD_OA16_SDSM_SCREEN.2 OA-16: SD/SDSM Screened - B Side
2003/069 21:43:32-21:57:30 MCL MOD_OA15_OPEN.1 OA-15: SD/SDSM Open - B Side
Friday, March 14, 2003
Lunar Roll Maneuver (-13.7657 degree roll)
2003/073 06:39:38 MCL MOD_OA03_FR_DAY_RATE.1 (NADIR Terminator Crossing to DAY + 00:00:00)
2003/073 07:25:51 MCL MOD_OA03_FR_NIGHT_RATE.2 (NADIR Terminator Crossing to NIGHT - 00:03:23)
2003/073 07:37:30-07:44:16 MCL MOD_OA08_ROLL_MAN.1
07:37:30 MCL PM1_SCS_ISC_81_MOD_OA08_ROLL_MAN_START_V1
07:37:30 FR RATE to DAY
07:37:32 FR SCI Flag set to ABNORM
07:37:34 FR PC DC Restore set to OFF
07:37:36 FR PV DC Restore set to OFF
07:37:38 FR Encoder Delta to -3072
Lunar View through Space View Port
07:44:08 MCL PM1_SCS_ISC_82_MOD_OA08_ROLL_MAN_END_V1
07:44:08 FR Encoder Delta to 0
07:44:10 FR PC DC Restore set to ON
07:44:12 FR PV DC Restore set to ON
07:44:14 FR SCI Flag set to NORM
07:44:16 FR RATE to NIGHT
2003/073 08:21:55 MCL MOD_OA03_FR_DAY_RATE.1 (NADIR Terminator Crossing to DAY + 00:03:23)
2003/073 09:08:08 MCL MOD_OA03_FR_NIGHT_RATE.2 (NADIR Terminator Crossing to NIGHT + 00:00:00)
The MOD_OA03_FR_DAY/NIGHT_RATE.1/2 activities are scheduled to balance the FR Data Rate to 50%/50% Day/Night per orbit for the maneuver. They replace the two regularly scheduled activities, MOD_OA03_FR_DAY_NIGHT_SINGLE.1 (ISC SCS 56), at 2003/073 06:39:38 and 2003/073 08:18:32.
March calibrations for the FM1 MODIS instrument include an SRCA full radiometric, an SRCA full spatial, Lunar Calibration Roll, and weekly SD calibrations.
A flight software patch is planned to the Control Processor CP07 mode transition table to not turn off the instrument formatter when MODIS transitions to Safe Mode. However, this patch is still postponed until the Aqua BST patch has been implemented.
Maneuvers:
The next FM1 MODIS Lunar Calibration via Spacecraft Roll Maneuver is March 14, 2003 (DOY 2003/073) with data collection from 07:37:46 to 07:44:16 GMT and a roll angle of -13.7657 degrees.
The DMU #9 Maneuver is currently scheduled for March 19, 2003 (DOY 2003/078) at 16:15:00. The burn will last approximately 75 seconds. The slew out and then back will occur at 15:33:00 and 17:07:00, respectively.
The Deep Space Calibration pitch maneuver(s) are still postponed pending the results of the Terra Deep Space Calibration maneuvers currently planned for March 26 and April 14, 2003.
MODIS Anomalies:
Work is still underway to fix the current BST patch as well as modify the final BST patch that was nearing final review approval. This fix will solve the problem of MODIS Ground Command transactions being disabled by MODIS Stored Commands.
General Instrument Comments:
FM1 MODIS is in Science Mode. The SVD and NAD are Open, the survival heaters are enabled, and the Black Body is heated to 285 K.
MODIS Telemetry Trends:
The FM1 MODIS instrument telemetry is trending nominally. The radiative cooler temperatures have leveled off with approximately 37mW of margin left with the SMIR focal plane heater. These telemetry points will continue to be closely monitored.
Non-MODIS Significant Events:
The EMOS mission status webpage (which includes instrument data loss records) can be found at the following URL. Note that a password is now required to access the EOS mission links webpages. There are directions at the URL below for how to obtain a username/password.
http://jupiter02.gsfc.nasa.gov/links/links.htm
At approximately 2003/036 21:39:02 (Wednesday, Feb. 05, 2003) the HSB Instrument received a Scan Motor Sync Error (HSB_SS_IDFLGW1B09) that did not automatically clear after eight seconds. This was followed by a Sync Failure To Recover indicator alert (HSB_SS_IDFLGW1B11). This failure to recover lead to a sequence of events that placed the HSB Instrument in Survival Mode. HSB remains in Survival Mode to date while anomaly teams assess the situation and plan for a possible return to science mode.
At 15:09:24 on Wednesday, March 5, 2003, the Aqua FOT loaded the Aqua FSW Patch for Geolocation Fix. This patch solves the coordinate system time frame inconsistency on the Star Catalog processing on the GNCC that has caused small amounts of geolocation errors to propagate into the MODIS Science Data. The problem was causing oscillating ground track errors in the order +/- 200 meters. This error has now been reduced to less than +/- 80 meters with the application of the FSW Patch.
Limited Life Item Status:
SRCA 10W Lamp #1: 214.8 of 500 hours
SRCA 10W Lamp #2: 183.6 of 500 hours
SRCA 10W Lamp #3: 186.4 of 500 hours
SRCA 10W Lamp #4: 57.7 of 500 hours
SRCA 1W Lamp #1: 503.2 of 5000 hours
SRCA 1W Lamp #2: 269.8 of 5000 hours
Solar Diffuser Door: 1960 of 3022 Movements
Nadir Aperture Door: 1053 of 1316 Movements
Space View Door: 632 of 1316 Movements