Mission Operations Days: 2011/288 through 2011/294
October 15, 2011 20:00:00 GMT to October 21, 2011 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) |
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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, October 15, 2011
None
Sunday, October 16, 2011
None
Monday, October 17, 2011
Lunar Roll Maneuver (-11.3417 degrees)
2011/290 01:47:31 ATC MOD_OA03_FR_NIGHT_RATE.1 (03:23 early)
2011/290 02:22:54-02:29:40 ATC MOD_OA08_ROLL_MAN.3
2011/290 02:43:34 ATC MOD_OA03_FR_DAY_RATE.2 (03:23 late)
Tuesday, October 18, 2011
2011/291 21:23:27-21:32:14 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4
OA-16: SD/SDSM screened side A, no door movement.
Wednesday, October 19, 2011
2011/292 21:00:00 ATC MOD_OA26_BB_270K_A.2
Set blackbody temperature to 270K on the A Side
Thursday, October 20, 2011
2011/293 15:00:00 ATC MOD_OA26_BB_280K_A.2
Set blackbody temperature to 280K on the A Side
2011/293 19:00:00 ATC MOD_OA26_BB_285K_A.2
Set blackbody temperature to 285K on the A Side
2011/293 22:00:00 ATC MOD_OA26_BB_290K_A.2
Set blackbody temperature to 290K on the A Side
Friday, October 21, 2011
2011/294 02:00:00 ATC MOD_OA26_BB_315K_A.2
Set blackbody temperature to 315K on the A Side
2011/294 02:00:30 ATC MOD_OA26_BB_DCYCLE_FULL.1
Set blackbody heater duty cycle to FULL
2011/294 05:00:00 ATC MOD_OA26_BB_270K_A.2
Set blackbody temperature to 270K on the A Side
2011/294 05:00:30 ATC MOD_OA26_BB_DCYCLE_THIRD.1
Set blackbody heater duty cycle to THIRD
This Week's Scheduled MODIS Activities Not Completed:
None
This Month's Upcoming MODIS Events:
Calibrations for October will include an SRCA Radiometric (DOY 283), an SRCA Spectral (DOY 285), a Lunar Roll (DOY 290), an SDSM Screened (DOY 291), and a Black Body Cycle (DOY 292-295).
Saturday, October 22, 2011
2011/295 02:00:00 ATC MOD_OA26_BB_290K_A.2
Set blackbody temperature to 290K on the A Side
Maneuvers:
The Terra Inclination Adjustment Maneuver (IAM) #29 on DOY 292 (10/19/2011) was completed successfully. Maneuver start time was 292/15:09:53 and maneuver end time was 292/15:15:13. The loss of pointing accuracy times were 292/13:24:00 - 16:50:00.
There will be a Terra Inclination Adjustment Maneuver (IAM) #30 on DOY 299 (10/26/2011). Maneuver start time is set for 299/15:16:06 and maneuver end time is set for 299/15:21:26. MODIS doors have been scheduled to close for this maneuver in case there is an issue, but will be inhibited, provided there is not a problem during the maneuver.
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.
Following the Inclination Maneuver on DOY 286 (10/13/09), Terra experienced a Hex Bay Battery (BBAT) cell #50 failure and simultaneously (or close to same time) experienced a Battery Heater Control Electronic anomaly which prevents controlling the temperature for 5 of the 9 heater groups within BBAT. Cell #50 has failed and is non-recoverable. Battery temperatures have stabilized and battery cell temperatures are within an acceptable range. Terra has a robust power system with two 54 cell batteries that feed a power control system that maintains a stable 120V spacecraft power bus even if multiple cells fail. At this point in time the Terra Battery Anomaly is not affecting science data collection and all MODIS systems are nominal. There has been little if any impact to operations since the issue began. All operations are nominal.
http://jupiter02.gsfc.nasa.gov/
Limited Life Item Status:
SRCA 10W Lamp #1: 300.0 of 500 hours
SRCA 10W Lamp #2: 172.1 of 500 hours
SRCA 10W Lamp #3: 190.3 of 500 hours
SRCA 10W Lamp #4: 100.5 of 500 hours
SRCA 1W Lamp #1: 582.0 of 4000 hours
SRCA 1W Lamp #2: 282.0 of 4000 hours
Solar Diffuser Door: 2146 of 3022 Movements
Nadir Aperture Door: 540 of 1316 Movements
Space View Door: 443 of 1316 Movements