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MODIS IOT Terra Weekly Report
Mission Operations Days: 2005/344 through 2005/350
December 9, 2005 20:00:00 GMT to December 16, 2005 20:00:00 GMT
Terra Spacecraft and MODIS Instrument Status:
|
AM-1 "Terra" is in Normal Mode PFM MODIS is in A-Side Nominal Science Mode (Cross Strapped with FR B) |
||
| Component | State(s) | Comment |
|---|---|---|
| Blackbody | A On (290K); B Off | Nominal Science Mode |
| Calibration Electronics | A On; B Off | Nominal Science Mode |
| Control Processor | A On; B Off | Nominal Science Mode |
| Nadir Door | Unlatched, Open | Nominal Science Mode |
| Space View Door | Unlatched, Open | Nominal Science Mode |
| Solar Diffuser Door | Unlatched, Screened | Permanent Configuration |
| FDDI Formatter | A On; B Off | Nominal Science Mode |
| FDDI Port | A On; B Off | Nominal Science Mode |
| FIFO Memory | #1 & #2 On; #3 & #4 Off | Nominal Science Mode |
| Format Processor | A Off; B On | Nominal Science Mode |
| Power Supplies | #1 On, #2 Off | Nominal Science Mode |
| PV VIS FPA | A On; B Off | Nominal Science Mode |
| PV NIR FPA | A On; B Off | Nominal Science Mode |
| PV SMIR FPA | A On; B Off | Nominal Science Mode |
| PV LWIR FPA | A On; B Off | Nominal Science Mode |
| PC LWIR FPA | A On; B Off | Nominal Science Mode |
| RC Outgas Heaters | All 3 (CS, IS, OS) Off | Nominal Science Mode |
| RC LWIR FPA Heater | On (83K) | Nominal Science Mode |
| RC SMIR FPA Heater | Off | Nominal Science Mode |
| Scan Assembly | A On; B Off | Nominal Science Mode |
| SDSM | Off | Nominal Science Mode |
| SRCA | Off
| Nominal Science Mode |
| PS1 Survival Heater | Enabled | Nominal Science Mode |
| PS2 Survival Heater | Enabled | Nominal Science Mode |
| Timing Generator | A On; B Off | Nominal Science Mode |
| Flight Software | Rev BD + 11 sets of patches
| Nominal Science Mode |
| Inhibit Ids Set | none | Nominal Science Mode |
| TMON 66 | Disabled | Nominal Science Mode |
| TMON 67 | Disabled | Nominal Science Mode |
| TMON 68 | Enabled | Nominal Science Mode |
| TMON 69 | Disabled | Nominal Science Mode |
This Week’s Completed MODIS Activities:
Saturday, December 10, 2005None
Sunday, December 11, 2005None
Monday, December 12, 2005None
Tuesday, December 13, 20052005/347 22:59:37-23:08:25 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4
OA-16: SD/SDSM screened side A, no door movement.
2005/347 23:40:00-23:40:31 ATC MOD_SRCA_11_3_8_2_SETUP_CC.1
SRCA setup activity using lamp #4 in lieu of lamp #2 and in constant current feedback mode
2005/347 23:49:08-00:24:18 ATC MOD_OA19_SRCA_FULL_RAD_A.6
OA-19: SRCA Full Radiometric Calibration.
None
Thursday, December 15, 2005None
Friday, December 16, 2005None
This Week’s Scheduled MODIS Activities Not Completed:
Tuesday, December 13, 2005Terra inclination adjust contingency activity (commands were inhibited due to nominal maneuver)
2005/347 16:22:33-16:24:14 ATC MOD_CLOSE_NAD_SVD.1
(100 seconds prior to S/C day, orbit 31853)
Terra inclination adjust contingency activity (commands were inhibited due to nominal maneuver)
2005/349 16:10:11-16:11:52 ATC MOD_CLOSE_NAD_SVD.1
(100 seconds prior to S/C day, orbit 31882)
Upcoming MODIS Events:
Calibrations for December will include biweekly SDSM and bimonthly PV Ecal.
Tuesday, December 20, 2005Lunar Roll Maneuver (-3.4356 deg roll)
2005/354 12:27:48-12:58:36 ATC MOD_OA03_FR_NIGHT_RATE (03:23 early)
2005/354 12:58:36-13:05:22 ATC MOD_OA08_ROLL_MAN
2005/354 13:23:49-14:10:04 ATC MOD_OA03_FR_DAY_RATE (03:23 late)
Maneuvers:
The next Terra MODIS Lunar Calibration Roll will be on DOY 2005/354 (December 20, 2005). The roll angle will be –3.4356 degrees. Data collect will be from 12:58:44-13:05:14.
The Terra spacecraft will be performing two inclination adjust maneuvers. One on December 13, 2005 (doy 347), and the other on December 15, 2005 (doy 349). Expect abnormal science data. Details below:
December 13, 2005:
-90.7 deg. Yaw start: 347 / 15:47:33
Maneuver (burn) start: 347 / 16:00:04
+90.7 deg. Yaw start: 347 / 16:11:42
+90.7 deg. Yaw end: 347 / 16:23:13
Loss of Pointing Accuracy 347/12:47:33z
Regain of Pointing Accuracy 347/18:53:13z
December 15, 2005:
-90.7 deg. Yaw start: 349 / 15:35:09
Maneuver (burn) start: 349 / 15:47:40
+90.7 deg. Yaw start: 349 / 15:59:18
+90.7 deg. Yaw end: 349 / 16:09:49
Loss of Pointing Accuracy 349/13:35:09z
Regain of Pointing Accuracy 349/18:39:49z
MODIS Anomalies:
None
General Instrument Comments:
MODIS is in Science Mode, using all A-side components, but cross-strapped to Formatter B, with the blackbody maintained at 290K and the Solar Diffuser Door at the Screened position.
MODIS Telemetry Trends:
Nominal telemetry trending is ongoing.
Non-MODIS Significant Events:
The EMOS mission status webpage (which includes instrument data loss records) can be found at the following URL. Note that a password is now required to access the EOS mission links web pages. There are directions at the URL below for how to obtain a username/password.
http://jupiter02.gsfc.nasa.gov/links/links.htmLimited Life Item Status:
SRCA 10W Lamp #1: 249.8 of 500 hours
SRCA 10W Lamp #2: 172.1 of 500 hours
SRCA 10W Lamp #3: 188.4 of 500 hours
SRCA 10W Lamp #4: 77.9 of 500 hours
SRCA 1W Lamp #1: 569.2 of 4000 hours
SRCA 1W Lamp #2: 278.7 of 4000 hours
Solar Diffuser Door: 2146 of 3022 Movements
Nadir Aperture Door: 538 of 1316 Movements
Space View Door: 441 of 1316 Movements
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Last Update: Tuesday, 20-Dec-2005 13:55:00 EST
