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MODIS IOT Terra Weekly Report
Mission Operations Days: 2000/239 to 2000/245
August 25, 2000 20:00:00 GMT to September 1, 2000 20:00:00 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 + 1 set of patches
| Nominal |
| Inhibit Ids Set | None | Nominal |
| TMONs Enabled | 66, 67, 68 | Nominal |
This Week’s Completed MODIS Activities:
Saturday, August 26, 2000
2000/239 04:00:00 ATC Set BB Temp to 315
2000/239 04:00:22 ATC Set BB Duty Cycle to FULL
2000/239 05:52:33 Real-Time Set Inhibit ID 31 to prevent CE-B from turning on
2000/239 05:53:14 Real-Time Set Inhibit ID 32 to prevent BB-B from turning on
2000/239 11:00:00 Real-Time Set BB Temp to 270
2000/239 10:59:11 Real-Time Set BB Duty Cycle to THIRD
2000/239 22:33 Real-Time Cleared Inhibit ID 31 to allow future CE ATC events
2000/239 22:34 Real-Time Cleared Inhibit ID 32 to allow future BB ATC events
2000/240 06:00:00 ATC Turn On CE-A
2000/240 06:00:20 ATC Turn On BB-A
2000/240 06:00:22 ATC Set BB Temp to 290
None
Tuesday, August 29, 2000None
Wednesday, August 30, 2000None
Thursday, August 31, 2000
2000/244 20:47:54 ATC OA15 - SDSM Open
2000/244 22:26:47 ATC OA16 - SDSM Screened
None
This Week's Scheduled MODIS Activities Not Completed:
Saturday, August 26, 2000
2000/239 11:00:00 ATC Set BB Duty Cycle to THIRD
(Inhibit ID 32 was set to prevent the next ATC event)
2000/239 11:01:00 ATC Set BB-Temp to 270
(activity scheduled using B-Side CE and BB)
Upcoming MODIS Events:
Saturday, September 2, 2000None
Sunday, September 3, 2000None
Monday, September 4, 2000None
Tuesday, September 5, 2000None
Wednesday, September 6, 2000None
Thursday, September 7, 2000None
Friday, September 8, 2000None
Maneuvers:
The next roll maneuver to view the moon through the space view port is scheduled for September 18th (2000-262, 05:29:56 - 05:16:44 GMT).
MODIS Anomalies:
The formatter anomaly investigation has continued At approximately 8:00pm EDT August 19th, the formatter errors ceased occurring. There are currently 9 unique error addresses recorded by the Formatter, and a total error count of 2183. The A-Side Formatter is operating at approx. - 0.3C.
The LWIR CFPA temperature control has been restored. The temperature is holding within +/- 0.02K of the set-point of 83K. The LWIR CFPA heater voltage is cycling with orbital variations of +/- 0.5V around 6.0V.
MCST is establishing automatic long term trending and critical telemetry point monitoring to track the lasting results of the two recent anomaly resolutions.
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:
See MODIS Anomalies above.
Non-MODIS Significant Events:
None
Limited Life Item Status:
SRCA 10W Lamp #1: 173.3 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: 555.8 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours
Solar Diffuser Door: 1399 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements
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Last Update: Tuesday, 14-Jan-2003 14:43:33 EST
