Mission Operations Days: 2001/027 to 2001/033
January 27, 2001 00:00:00 GMT to February 02, 2001 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, January 27, 2001
None
Sunday, January 28, 2001
None
Monday, January 29, 2001
None
Tuesday, January 30, 2001
None
Wednesday, January 31, 2001
2001/031 20:49:46 OA-16: SDSM SCREENED
2001/031 22:28:39 OA-15: SDSM OPEN
Thursday, February 01, 2001
None
Friday, February 02, 2001
None
This Week's Scheduled MODIS Activities Not Completed:
None
Upcoming MODIS Events:
Friday, February 02, 2001
None
Saturday, February 03, 2001
None
Sunday, February 04, 2001
None
Monday, February 05, 2001
None
Tuesday, February 06, 2001
None
Wednesday, February 07, 2001
None
Thursday, February 08, 2001
2001/039 15:50:51 – 16:24:24 ATC OA-19: SRCA Full Radiometric
Friday, February 09, 2001
2001/040 14:52:39 – 15:44:18 ATC OA-22: SRCA Full Spectral (Part 1)
2001/040 16:48:22 – 17:23:07 ATC OA-22: SRCA Full Spectral (Part 2)
2001/040 18:10:24 – 19:01:40 ATC OA-22: SRCA Full Spectral (Part 3)
2001/040 20:04:25 – 20:42:23 ATC OA-22: SRCA Full Spectral (Part 4)
Maneuvers:
A drag makeup maneuver was performed by the FOT at 017/19:38:00 to 017/21:08:00.
The next MODIS Lunar Calibration Roll Maneuver is planned for 2001/043, February 12th.
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 day 2000/240. During this time the LWIR focal plane heater margin has been decreasing. The IOT is continuing to trend these telemetry mnemonics.
Temperature trends are correlating with the solar beta angle. This includes a steadying of the intermediate stage outgas temperature. This temperature is expected to increase again when the beta angle gets smaller.
Non-MODIS Significant Events:
None.
Limited Life Item Status:
SRCA 10W Lamp #1: 179.2 of 500 hours
SRCA 10W Lamp #2: 139.2 of 500 hours
SRCA 10W Lamp #3: 148.4 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours
SRCA 1W Lamp #1: 556.6 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours
Solar Diffuser Door: 1519 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements