Mission Operations Days: 2001/216 to 2001/222
August 04, 2001 00:00:00 GMT to August 10, 2001 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 Off; B On | Nominal |
| Flight Software | Rev BD + 2 set of patches
|
Nominal |
| Inhibit Ids Set | None | Nominal |
| TMON 66 (SRCA A) | Disabled | Nominal |
| TMON 67 (SRCA B) | Disabled | Nominal |
| TMON 68 (FIFO) | Enabled | Nominal |
| TMON 69 (EPS Current) | Disabled | Nominal |
This Week's Completed MODIS Activities:
Saturday, August 4, 2001
None
Sunday, August 5, 2001
None
Monday, August 6, 2001
None
Tuesday, August 7, 2001
None
Wednesday, August 8, 2001
2001/220 21:40:08-21:51:36 ATC OA-15: SD/SDSM Open
2001/220 22:31:32-23:05:05 ATC OA-19: Full Radiometric
2001/220 23:19:20-23:30:30 ATC OA-16: SD/SDSM Screened
Thursday, August 9, 2001
2001/221 01:12:45-01:15:16 ATC OA-27: PV ECAL
2001/221 02:50:39-02:55:10 ATC OA-28: PC ECAL
Lunar Roll Maneuver (-7.4496 degree roll)
2001/221 03:00:14 RT FOT Set IRU to high rate for roll maneuver; less pointing accuracy
2001/221 05:12:23 ATC Move Formatter to Night ahead by 3:23 to ensure 50/50 day/night
2001/221 05:30:14 ATC FOT begins spacecraft roll slew to –7.4496 degrees
2001/221 05:34:27 ATC Set Formatter to Day Rate
2001/221 05:34:29 ATC Set SCIABNORM Flag to ABNORM
2001/221 05:34:31 ATC Set PC band DC Restore to OFF
2001/221 05:34:33 ATC Set PV band DC Restore to OFF
2001/221 05:34:35 ATC Set Sector Rotation to –3072 (Earth Aperture to view Space view and OBCs)
2001/221 05:41:05 ATC Set Sector Rotation to Zero (Normal)
2001/221 05:41:07 ATC Set PV band DC Restore to ON
2001/221 05:41:09 ATC Set PC band DC Restore to ON
2001/221 05:41:11 ATC Set SCIABNORM Flag to NORM
2001/221 05:41:13 ATC Set Formatter to Night Rate
2001/221 05:45:02 ATC Spacecraft has returned to nominal attitude
2001/221 06:08:37 ATC Move Formatter to Day later by 3:23 to ensure 50/50 day/night
2001/221 07:15:02 RT FOT set IRU to low rate after roll maneuver; nominal pointing
Lunar Roll Maneuver
2001/221 20:02:23 ATC Move Formatter to Night ahead by 3:23 to ensure 50/50 day/night
2001/221 20:18:31 RT Set SMIR Itwk/Vdet 79/110
2001/221 20:23:29 ATC Set Formatter to Day Rate
2001/221 20:23:31 ATC Set SCIABNORM Flag to ABNORM
2001/221 20:23:33 ATC Set PC band DC Restore to OFF
2001/221 20:23:35 ATC Set PV band DC Restore to OFF
2001/221 20:23:37 ATC Set Sector Rotation to –3072 (Earth Aperture to view Space view and OBCs)
2001/221 20:30:07 ATC Set Sector Rotation to Zero (Normal)
2001/221 20:30:09 ATC Set PV band DC Restore to ON
2001/221 20:30:11 ATC Set PC band DC Restore to ON
2001/221 20:30:13 ATC Set SCIABNORM Flag to NORM
2001/221 20:30:15 ATC Set Formatter to Night Rate
2001/221 20:58:37 ATC Move Formatter to Day later by 3:23 to ensure 50/50 day/night
2001/221 21:10:24 RT Set SMIR Itwk/Vdet 79/190
Friday, August 10, 2001
None
This Week's Scheduled MODIS Activities Not Completed:
None
Upcoming MODIS Events:
Friday, August 10, 2001
None
Saturday, August 11, 2001
None
Sunday, August 12, 2001
None
Monday, August 13, 2001
None
Tuesday, August 14, 2001
None
Wednesday, August 15, 2001
None
Thursday, August 16, 2001
None
Friday, August 17, 2001
None
Maneuvers:
The MODIS Lunar Roll Calibration went as planned on August 9, 2001 ( DOY 221 ) from 05:24:35 to 05:31:05. A second lunar calibration was also performed without a roll maneuver on the same day from 20:23:37 to 20:30:07. During the second roll, the SMIR Itwk/Vdet was temporarily set to 79/110.
MODIS Anomalies:
None
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 (FRFSP).
MODIS Telemetry Trends:
Trending has resumed with the instrument on the A-side. All appears nominal at this time.
Non-MODIS Significant Events:
None.
Limited Life Item Status:
SRCA 10W Lamp #1: 189.1 of 500 hours
SRCA 10W Lamp #2: 144.8 of 500 hours
SRCA 10W Lamp #3: 154.0 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours
SRCA 1W Lamp #1: 558.0 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours
Solar Diffuser Door: 1673 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements