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MODIS IOT Terra Weekly Report
Mission Operations Days: 2000/246 to 2000/252
September 1, 2000 20:00:00 GMT to September 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 - 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, September 2, 2000None
Sunday, September 3, 2000None
Monday, September 4, 2000None
Tuesday, September 5, 2000None
Wednesday, September 6, 2000None
Thursday, September 7, 2000
2000/251 20:55:18 ATC OA15 - SDSM Open
2000/251 22:34:11 ATC OA16 - SDSM Screened
2000/252 13:37 Real-Time SMIR VDET/ITWK to 79/110
2000/252 13:42:49 ATC SRCA 10W Spatial:
using Spectral Slit with EA sector rotation and delay stepping
(activity MOD_OA25_10W_SPAT_SLT_SECT_A)
2000/252 15:21:42 ATC SRCA 1W Spatial:
using Along Scan Reticle with EA sector rotation and delay
stepping
(activity MOD_OA25_SRCA_1W_SPAT_SECT_A)
2000/252 16:12 Real-Time SMIR VDET/ITWK to 110/226 (Nominal Operations)
This Week's Scheduled MODIS Activities Not Completed:
None
Upcoming MODIS Events:
Saturday, September 9, 2000None
Sunday, September 10, 2000None
Monday, September 11, 2000None
Tuesday, September 12, 2000
2000/256 13:53 Real-Time SMIR VDET/ITWK to 79/110
2000/256 14:38:44 ATC OA16 - SDSM Double Screened
2000/256 16:17:38 ATC OA15 - SDSM Double Open
2000/256 16:25 Real-Time SMIR VDET/ITWK to 110/226 (Nominal Operations)
The two day passes for the SD/SDSM activities fall across the central and western Atlantic. This should keep us clear of Africa, Hawaii and Alaska for Day and Night Ground Tracks for both the activities and the off-nominal VDET/ITWK values.
2000/256 18:12 Real-Time Set new Gain Values for Band 14H (1-10), and Band 25 (1).
Wednesday, September 13, 2000None
Thursday, September 14, 2000None
Friday, September 15, 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: 173.5 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: 1405 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 16:07:27 EST
