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MODIS IOT Terra Weekly Report
Mission Operations Days: 2000/183 to 2000/189
June 30, 2000 20:00:00 GMT to July 7, 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 MODIS has an anomaly with the LWIR focal plane. See description below. |
||
| 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 | Nominal |
This Week’s Completed MODIS Activities:
Saturday, July 1, 2000None
Sunday, July 2, 2000None
Monday, July 3, 20002000/185 12:01:02 ATC OA19 SRCA Full Radiometric
Tuesday, July 4, 2000None
Wednesday, July 5, 2000
2000/187 11:48:43 ATC OA23 SRCA Full Spatial
2000/187 12:00:00 ATC - Blackbody to 270K
2000/188 06:00:00 ATC Blackbody to 280K
2000/188 10:00:00 ATC Blackbody to 285K
2000/188 12:00:00 ATC Blackbody to 290K
2000/188 14:00:00 ATC Blackbody to 295K
2000/188 14:37:41 Real-time Set Blackbody duty cycle to 100%
2000/188 16:00:00 ATC Blackbody to 300K
2000/188 18:00:00 ATC Blackbody to 315K
2000/188 20:05:00 ATC Blackbody to 270K
2000/188 20:29:16 Real-time Set Blackbody duty cycle to 33%
2000/198 08:15:38 ATC OA22 SRCA Full Spectral, 30W part I
2000/198 10:10:25 ATC OA22 SRCA Full Spectral, 30W part II
2000/198 11:32:52 ATC OA22 SRCA Full Spectral, 10W part I
2000/198 14:06:09 ATC OA22 SRCA Full Spectral, 10W part II
2000/198 19:00:00 ATC Blackbody to 290K
This Week's Scheduled MODIS Activities Not Completed:
None
Upcoming MODIS Events:
Saturday, July 8, 2000None
Sunday, July 9, 2000None
Monday, July 10, 20002000/192 20:02:00 ATC - Blackbody to 270K
Tuesday, July 11, 2000
2000/193 14:00:00 ATC Blackbody to 315K
2000/193 14:?? Real-time Set Blackbody duty cycle to 100%
2000/193 21:00:00 ATC Blackbody to 270K
2000/193 21:?? Real-time Set Blackbody duty cycle to 33%
2000/194 19:00:00 ATC Blackbody to 290K
Thursday, July 13, 2000None
Friday, July 14, 2000None
Maneuvers:
Friday, July 21, 2000 - MODIS Roll Maneuver (2000/203/12:07:22 – 12:25:24)
MODIS Anomalies:
The Radiative Cooler has negative margin, therefore the cold focal planes are no longer under thermal control. This affects bands 5, 6, 7, and 20-36. Analysis is underway. Solar Diffuser Door operations are suspended during this analysis.
Current maximum and minimum temperature ranges of the LWIR FPA:
Thursday, July 6, 2000:
2000/188 22:21:40 = 83.775K
2000/188 23:22:10 = 83.597K
General Instrument Comments:
MODIS is in Science Mode on the A-side with the SVD and NAD open.
MODIS Telemetry Trends:
See MODIS Anomalies section.
Non-MODIS Significant Events:
Data processing by EDOS is currently running at a "degraded level". For a detailed summary of the events that have affected their products, view the EOS System Status web page (http://jupiter02.gsfc.nasa.gov:591/sysstat/) and select the EDOS summary link at the top of the page. A key item to note is from day 6/27/2000 at 12:11:19 PM: " The second major issue is the amount of data that EDOS is receiving since ASTER has been fully turned on." With the new, higher data output of ASTER, even less "spare" time will be available to EDOS for the processing of backlogged or reprocessing of data.
Limited Life Item Status:
SRCA 10W Lamp #1: 170.1 of 500 hours
SRCA 10W Lamp #2: 134.3 of 500 hours
SRCA 10W Lamp #3: 143.5 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours
SRCA 1W Lamp #1: 555.3 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours
Solar Diffuser Door: 1381 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements
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Last Update: Thursday, 27-Feb-2003 13:39:17 EST
