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MODIS IOT Terra Weekly Report
Mission Operations Days: 2001/207 to 2001/215
July 27, 2001 20:00:00 GMT to August 3, 2001 20:00:00 GMT
MODIS Band 5 Detectors 1-20 (all) Gains Changed On 2001/212. See below for further details.
Terra Spacecraft and MODIS Instrument Status:
|
Terra (AM-1) is in Normal Ops Mode MODIS is in Science Mode - A Side |
||
| Component | State(s) | Comment |
|---|---|---|
| Blackbody | A On (290 K); B Off | Nominal |
| Calibration Electronics | A On; B Off | Nominal |
| Control Processor | A On; B Off | Nominal |
| Nadir Door | Unlatched, Open | Nominal |
| Space View Door | Unlatched, Open | Nominal |
| Solar Diffuser Door | Unlatched, Closed | Nominal |
| FDDI Formatter | A On; B Off | Nominal |
| FDDI Port | A On; B Off | Nominal |
| FIFO Memory | #1 & #2 On; #3 & #4 Off | Nominal |
| Format Processor | A On; B Off | Nominal |
| Power Supplies | #1 On; #2 Off | Nominal |
| PV VIS FPA | A On; B Off | Nominal |
| PV NIR FPA | A On; B Off | Nominal |
| PV SMIR FPA | A On; B Off | Nominal |
| PV LWIR FPA | A On; B Off | Nominal |
| PC LWIR FPA | A On; B Off | Nominal |
| RC Outgas Heaters | All Off (CS, IS, OS) | Nominal |
| RC LWIR FPA Heater | On (83 K) | Nominal |
| RC SMIR FPA Heater | Off | Nominal |
| Scan Assembly | A On; B Off | Nominal |
| SDSM | A Off; B Off | Nominal |
| SRCA | A Off; B Off | Nominal |
| PS1 Survival Heater | Enabled | Nominal |
| PS2 Survival Heater | Enabled | Nominal |
| Timing Generator | A Off; B On | Nominal |
| Flight Software | Rev BD + 2 set of patches
| Nominal |
| Inhibit Ids Set | None | Nominal |
| TMON 66 (SRCA A) | Disabled | Nominal |
| TMON 67 (SRCA B) | Disabled | Nominal |
| TMON 68 (FIFO) | Enabled | Nominal |
| TMON 69 (EPS Current) | Disabled | Nominal |
This Week's Completed MODIS Activities:
Saturday, July 28, 2001None
Sunday, July 29, 2001None
Monday, July 30, 2001None
Tuesday, July 31, 20012001/212 13:49:40-13:57:16 RT Changing of Band 5 Gains to reflect 25% lower values
Wednesday, August 1, 2001
2001/213 21:33:32-21:45:00 ATC OA-15: SD/SDSM Open
2001/213 23:12:26-23:23:54 ATC OA-16: SD/SDSM Screened
2001/214 00:22:28 RT Set SMIR Itwk/Vdet 79/110
2001/214 00:28:00-00:48:00 ATC 20 Extra Minutes FR Day Rate over Ground Track Night
2001/214 05:51:19-01:02:47 ATC OA-15: SD/SDSM Open
2001/214 01:11:59 RT Set SMIR Itwk/Vdet 79/190
None
This Week's Scheduled MODIS Activities Not Completed:
None
Upcoming MODIS Events:
Friday, August 3, 2001None
Saturday, August 4, 2001None
Sunday, August 5, 2001None
Monday, August 6, 2001None
Tuesday, August 7, 2001None
Wednesday, August 8, 2001
220/21:40:08-21:51:36 ATC OA-15: SD/SDSM Open
220/22:31:32-23:05:05 ATC OA-19: Full Radiometric
220/23:19:20-23:30:30 ATC OA-16: SD/SDSM Screened
221/01:12:45-01:15:16 ATC OA-27: PV ECAL
221/02:50:39-02:55:10 ATC OA-28: PC ECAL
221/03:00:14 RT FOT Set IRU to high rate for roll maneuver; less pointing accuracy
221/05:12:23 ATC Move Formatter to Night ahead by 3:23 to ensure 50/50 day/night
221/05:30:14 ATC FOT begins spacecraft roll slew to -7.4496 degrees
221/05:34:27 ATC Set Formatter to Day Rate
221/05:34:29 ATC Set SCIABNORM Flag to ABNORM
221/05:34:31 ATC Set PC band DC Restore to OFF
221/05:34:33 ATC Set PV band DC Restore to OFF
221/05:34:35 ATC Set Sector Rotation to -3072 (Earth Aperture to view Space view and OBCs)
221/05:41:05 ATC Set Sector Rotation to Zero (Normal)
221/05:41:07 ATC Set PV band DC Restore to ON
221/05:41:09 ATC Set PC band DC Restore to ON
221/05:41:11 ATC Set SCIABNORM Flag to NORM
221/05:41:13 ATC Set Formatter to Night Rate
221/05:45:02 ATC Spacecraft has returned to nominal attitude
221/06:08:37 ATC Move Formatter to Day later by 3:23 to ensure 50/50 day/night
221/07:15:02 RT FOT set IRU to low rate after roll maneuver; nominal pointing
221/20:02:23 ATC Move Formatter to Night ahead by 3:23 to ensure 50/50 day/night
221/20:??:?? RT Set SMIR Itwk/Vdet 79/110
221/20:23:29 ATC Set Formatter to Day Rate
221/20:23:31 ATC Set SCIABNORM Flag to ABNORM
221/20:23:33 ATC Set PC band DC Restore to OFF
221/20:23:35 ATC Set PV band DC Restore to OFF
221/20:23:37 ATC Set Sector Rotation to -3072 (Earth Aperture to view Space view and OBCs)
221/20:30:07 ATC Set Sector Rotation to Zero (Normal)
221/20:30:09 ATC Set PV band DC Restore to ON
221/20:30:11 ATC Set PC band DC Restore to ON
221/20:30:13 ATC Set SCIABNORM Flag to NORM
221/20:30:15 ATC Set Formatter to Night Rate
221/20:??:?? RT Set SMIR Itwk/Vdet 79/190
221/20:58:37 ATC Move Formatter to Day later by 3:23 to ensure 50/50 day/night
None
Maneuvers:
The next MODIS Lunar Roll Calibration is scheduled for August 9, 2001 ( DOY 221 ) from 05:24:35 to 05:31:05. A second lunar calibration will be performed without a roll maneuver on the same day from 20:23:37 to 20:30:07. During the second roll, the SMIR Itwk/Vdet will be temporarily set to 79/110.
MODIS Anomalies:
The MODIS PS2 Shutdown Anomaly report was presented on Monday, July 30, 2001.
General Instrument Comments:
MODIS is in Science Mode on the A-side with the SVD and NAD open, operating with the Formatter Resolution Flight Software Patches (FRFSP).
MODIS Telemetry Trends:
Trending has resumed with the instrument on the A-side. All appears nominal at this time.
Non-MODIS Significant Events:
None.
Limited Life Item Status:
SRCA 10W Lamp #1: 189.0 of 500 hours
SRCA 10W Lamp #2: 144.7 of 500 hours
SRCA 10W Lamp #3: 153.9 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours
SRCA 1W Lamp #1: 557.9 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours
Solar Diffuser Door: 1667 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements
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Last Update: Wednesday, 26-Feb-2003 13:55:29 EST
