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MODIS IOT Terra Weekly Report
Mission Operations Days: 2000/337 to 2000/343
December 1, 2000 20:00:00 GMT to December 8, 2000 20:00:00 GMT
Terra Spacecraft and MODIS Instrument Status:
|
Terra (AM-1) is in Normal Ops Mode MODIS is in Science Mode - B Side |
||
| Component | State(s) | Comment |
|---|---|---|
| Blackbody | A Off; B On (290 K) | Nominal |
| Calibration Electronics | A Off; B On | Nominal |
| Control Processor | A Off; B On | Nominal |
| Nadir Door | Unlatched, Open | Nominal |
| Space View Door | Unlatched, Open | Nominal |
| Solar Diffuser Door | Unlatched, Closed | Nominal |
| FDDI Formatter | A Off; B On | Nominal |
| FDDI Port | A On; B Off | Nominal |
| FIFO Memory | #1 & #2 Off; #3 & #4 On | Nominal |
| Format Processor | A Off; B On | Nominal |
| Power Supplies | #1 Off; #2 On | Nominal |
| PV VIS FPA | A Off; B On | Nominal |
| PV NIR FPA | A Off; B On | Nominal |
| PV SMIR FPA | A Off; B On | Nominal |
| PV LWIR FPA | A Off; B On | Nominal |
| PC LWIR FPA | A Off; B On | 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 Off; B On | 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 + 1 set of patches
| Nominal |
| Inhibit Ids Set | None | Nominal |
| TMONs Enabled | 68 | Nominal |
This Week’s Completed MODIS Activities:
Saturday, December 2, 2000None
Sunday, December 3, 2000None
Monday, December 4, 2000None
Tuesday, December 5, 2000None
Wednesday, December 6, 2000
SD/SDSM activities
2000/341 21:27:26 ATC OA-16: SDSM SCREENED
2000/341 23:16:20 ATC OA-15: SDSM OPEN
None
Friday, December 8, 2000None
This Week's Scheduled MODIS Activities Not Completed:
None
Upcoming MODIS Events:
Friday, December 8, 2000None
Saturday, December 9, 2000None
Sunday, December 10, 2000None
Monday, December 11, 2000None
Tuesday, December 12, 2000None
Wednesday, December 13, 2000None
Thursday, December 14, 2000None
Friday, December 15, 2000
Roll maneuver of –6.656 deg.
Starting at 2000/350 06:33:00 with loss of pointing knowledge.
Maneuver starts at 2000/350 08:03:54 and has a duration of 00:14:52.
Regain pointing knowledge at 2000/350 09:38:00.
Maneuvers:
December 5, drag makeup maneuver went nominally.
December 15 MODIS roll maneuver to –6.656 deg.
MODIS Anomalies:
No formatter anomalies have been detected since switching to B-side science operations. The MODIS IOT is continuing to monitor changes with the radiative cooler temperatures and focal plane power.
General Instrument Comments:
MODIS is in Science Mode on the B-side with the SVD and NAD open, operating with the Formatter Resolution Flight Software Patches (FRFSP). No new events have been witnessed by the FRFSP since the B-Side Transition on DOY 2000/304.
MODIS Telemetry Trends:
The Radiative Cooler intermediate stage temperature has slowly been increasing since approximately DOY 2000/240. During this time the LWIR focal plane heater margin has been decreasing. The IOT is continuing to trend these telemetry mnemonics.
Non-MODIS Significant Events:
None.
Limited Life Item Status:
SRCA 10W Lamp #1: 176.3 of 500 hours
SRCA 10W Lamp #2: 137.6 of 500 hours
SRCA 10W Lamp #3: 146.8 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours
SRCA 1W Lamp #1: 556.3 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours
Solar Diffuser Door: 1471 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements
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Last Update: Wednesday, 15-Jan-2003 15:11:28 EST
