Mission Operations Days: 2000/344 to 2000/350
December 09, 2000 00:00:00 GMT to December 15, 2000 00:00:00 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 9, 2000
None
Sunday, December 10, 2000
None
Monday, December 11, 2000
None
Tuesday, December 12, 2000
None
Wednesday, December 13, 2000
2000/348 21:43:58 ATC OA-16: SDSM Screened
2000/348 23:22:51 ATC OA-15: SDSM Open
Thursday, December 14, 2000
None
Friday, December 15, 2000
Lunar Roll Maneuver (-6.656 degree roll)
2000/350 07:38:27 ATC Move Formatter to Night ahead by 3:23 to ensure 50/50 day/night
2000/350 08:03:46 FOT ATC commanding: Begin Slew to -6.656 degrees
2000/350 08:08:20 ATC Set Formatter to Day Rate
2000/350 08:08:22 ATC Set SCIABNORM Flag to ABNORM
2000/350 08:08:24 ATC PC DC Restore to OFF
2000/350 08:08:26 ATC PV DC Restore to OFF
2000/350 08:08:28 ATC Sector Rotation to -3072 (EA to SV and OBCs)
2000/350 08:14:58 ATC Sector Rotation to Zero (Normal)
2000/350 08:15:00 ATC PC DC Restore to ON
2000/350 08:15:02 ATC PV DC Restore to ON
2000/350 08:15:04 ATC Set SCIABNORM Flag to NORM
2000/350 08:15:06 ATC Set Formatter to Night Rate
2000/350 08:18:38 FOT ATC commanding: Returned to nominal attitude
2000/350 08:34:38 ATC Move Formatter to Day later by 3:23 to ensure 50/50 day/night
This Week's Scheduled MODIS Activities Not Completed:
None
Upcoming MODIS Events:
Friday, December 15, 2000
None
Saturday, December 16, 2000
None
Sunday, December 17, 2000
None
Monday, December 18, 2000
None
Tuesday, December 19, 2000
None
Wednesday, December 20, 2000
None
Thursday, December 21, 2000
None
Friday, December 22, 2000
None
Maneuvers:
None.
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: 1477 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements