Mission Operations Days: 2000/260 to 2000/266
September 16, 2000 00:00:00 GMT to September 22, 2000 00:00:00 GMT
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 On; B Off | Nominal |
| Flight Software | Rev BD + 3 sets of patches
|
Nominal |
| Inhibit Ids Set | None | Nominal |
| TMONs Enabled | 66, 67, 68 | Nominal |
This Week’s Completed MODIS Activities:
Saturday, September 16, 2000
None
Sunday, September 17, 2000
None
Monday, September 18, 2000
Lunar Roll Maneuver (-11.0848 degree roll)
2000/262 05:05:12 ATC Load - Set Formatter to Night Rate 00:03:15 early (for 50/50 SSR buffer)
2000/262 05:35:22 ATC Load - Set Formatter to Day Rate (for Lunar Roll)
2000/262 05:35:24 ATC Load - Set SCIABNORM Flag to ABNORM
2000/262 05:35:26 ATC Load - PC DC Restore OFF
2000/262 05:35:28 ATC Load - PV DC Restore OFF
2000/262 05:35:30 ATC Load - Sector Rotation to -3072 (EA to SV and OBCs)
2000/262 05:41:44 ATC Load - Sector Rotation to 0 (Normal)
2000/262 05:41:46 ATC Load - PC DC Restore ON
2000/262 05:41:48 ATC Load - PV DC Restore ON
2000/262 05:41:50 ATC Load - Set SCIABNORM Flag to NORM
2000/262 05:41:52 ATC Load - Set Formatter to Night Rate (for Lunar Roll)
2000/262 06:01:09 ATC Load - Set Formatter to Day Rate 00:03:15 late (for 50/50 SSR buffer)
Tuesday, September 19, 2000
None
Wednesday, September 20, 2000
None
Thursday, September 21, 2000
2000/265 12:57:43 Real-Time OA-16: SD/SDSM Screened
2000/265 14:32:49 Real-Time OA-15: SD/SDSM Open
Friday, September 22, 2000
None
This Week's Scheduled MODIS Activities Not Completed:
None
Upcoming MODIS Events:
Saturday, September 16, 2000
None
Sunday, September 17, 2000
None
Monday, September 18, 2000
None
Maneuvers:
The next Drag Makeup Maneuver is planned for October 4th.
MODIS Anomalies:
Continued monitoring for formatter errors and loss of cooler margin.
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.
MODIS Telemetry Trends:
The Radiative Cooler intermediate stage temperature has slowly been increasing since approximately day 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: 173.5 of 500 hours
SRCA 10W Lamp #2: 135.9 of 500 hours
SRCA 10W Lamp #3: 145.1 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours
SRCA 1W Lamp #1: 556.1 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours
Solar Diffuser Door: 1417 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements