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MODIS IOT Terra Weekly Report
Mission Operations Days: 2000/099 to 2000/105
April 7, 2000 20:00:00 GMT to April 14, 2000 20:00:00 GMT
NOTE: The SCIABNORM Flag was NOT set during the four calibration slews on Thursday, April 13th. The data during the maneuvers is invalid. In addition, during the +10 degree roll (first maneuver), the temperature of the cold focal planes increased approximately 0.5K and took about 4 hours to return to nominal temperature.
Terra Spacecraft and MODIS Instrument Status:
|
Terra (AM-1) is in Normal Ops Mode MODIS is in Science Mode - A Side MODIS has no known Anomalies |
||
| 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 | 54 (SRCA) | Supsended SRCA activity |
| TMONs Enabled | 66, 67 | Nominal |
This Week’s Completed MODIS Activities:
Saturday, April 8, 2000None
Sunday, April 9, 2000None
Monday, April 10, 2000
2000/101 03:23:29 ATC OA-15 SD/SDSM Open
2000/101 05:02:22 ATC OA-16 SD/SDSM Screened
2000/101 20:02:00 ATC Blackbody to 270K
2000/102 14:00:00 ATC Blackbody to 315K
2000/102 14:15:12 Real-time Set Blackbody duty cycle to 100%
2000/102 22:00:00 ATC Blackbody to 270K
2000/102 22:05:25 Real-time Set Blackbody duty cycle to 33%
2000/103 08:07:27 ATC OA-16 SD/SDSM Screened
2000/103 16:34:20 – 16:44:27 ***DATA LOSS***
2000/103 19:00:00 ATC Blackbody to 290K
2000/103 20:20 Drag Make-up Maneuver (26s burn)
2000/104 14:55:33 IRU Cal Slew (+10 deg Roll, duration = 00:23:40)
2000/104 16:34:26 IRU Cal Slew (-10 deg Roll, duration = 00:23:40)
2000/104 18:13:19 IRU Cal Slew (+30 deg Yaw, duration = 00:33:40)
2000/104 19:52:13 IRU Cal Slew (-30 deg Yaw, duration = 00:33:40)
None
This Week's Scheduled MODIS Activities Not Completed:
None
Upcoming MODIS Events:
Friday, April 14, 20002000/105 21:05:46 ATC OA-16 SD/SDSM Screened
Saturday, April 15, 2000None
Sunday, April 16, 2000None
Monday, April 17, 20002000/108 20:02:00 ATC Blackbody to 270K
Tuesday, April 18, 2000
2000/109 14:00:00 ATC Blackbody to 315K
2000/109 14:00:00 Real-time Set Blackbody duty cycle to 100%
2000/109 21:00:00 ATC Blackbody to 270K
2000/109 21:00:00 Real-time Set Blackbody duty cycle to 33%
2000/110 ?? ATC OA-16 SD/SDSM Screened
2000/110 19:00 ATC Blackbody to 290K
No Activities
Friday, April 14, 20002000/112 ?? ATC OA-16 SD/SDSM Screened
Maneuvers:
Tue, April 25, 2000 - MODIS Yaw Maneuvers
Wed, April 26, 2000 - MODIS Yaw Maneuvers
Thur, April 27, 2000 - Inclination Maneuver
Fri, April 28, 2000 - Post-inclination Drag Makeup Maneuver
MODIS Anomalies:
None.
General Instrument Comments:
MODIS is in Science Mode on the A-side with the SVD and NAD open.
MODIS Telemetry Trends:
Telemetry is nominal.
Non-MODIS Significant Events:
None.
Limited Life Item Status:
SRCA 10W Lamp #1: 151.5 of 500 hours
SRCA 10W Lamp #2: 127.5 of 500 hours
SRCA 10W Lamp #3: 136.7 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours
SRCA 1W Lamp #1: 545.8 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours
Solar Diffuser Door: 1275 of 3022 Movements
Nadir Aperture Door: 530 of 1316 Movements
Space View Door: 436 of 1316 Movements
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Last Update: Thursday, 27-Feb-2003 13:38:33 EST
