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am1weekly_2010-296_2010-302

Mission Operations Days: 2010/296 through 2010/302
October 23, 2010 20:00:00 GMT to October 29, 2010 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
  • 10W Lamps - 1, 4 (functional)
  • 10W Lamps - 2, 3 (non-functional)
  • 1W Lamps - 1, 2 (functional)
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
  • CP07 to Survival Mode - No SDD to closed command (1 patch)
  • CP07 to Safe Mode - No FR OFF Command (1 patch)
  • CP07 to Safe Mode - No SDD to closed command (1 patch)
  • CP07 to Science Mode - Turn on FRB instead of FRA (1 patch)
  • CP07 to Outgas and Science Mode - Turn on FRB instead of FRA (1 patch)
  • FR Error Counting and Statistics (2 patches)
  • FR 1000ms time code patches (3 patches)
  • FR Band 5 Gain Change (20 commands)
  • FR BB Ideal Output Values (1 patch)
  • FR A EEPROM KME Fast 1 word patch (1 patch)
  • FR B EEPROM KME Fast 1 word patch (1 patch)
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 23, 2010

None

Sunday, October 24, 2010

None

Monday, October 25, 2010

2010/298 21:09:51-21:10:20 MOD_SRCA_9_8_2_SETUP_CC.1
SRCA setup activity using 10W lamps 1 & 4 and 1W lamp 5 in constant
current feedback mode
2010/298 21:12:51-22:01:09 MOD_OA23_SRCA_FULL_SPAT.1
OA-23: SRCA Full Spatial Calibration
Data Collect from 21:29:08-21:59:54 (centered on S/C Night)
S/C Night 21:27:41-22:01:38.

Tuesday, October 26, 2010

2010/299 21:05:48-21:14:35 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4
OA-16: SD/SDSM screened side A, no door movement.

Wednesday, October 27, 2010

Lunar Roll Maneuver (-11.0909 degrees)
2010/300 17:46:39 ATC MOD_OA03_FR_NIGHT_RATE.1 (03:23 early)
2010/300 18:22:26-18:29:12 ATC MOD_OA08_ROLL_MAN.3
2010/300 18:42:42 ATC MOD_OA03_FR_DAY_RATE.2 (03:23 late)

Thursday, October 28, 2010

None

Friday, October 29, 2010

None

This Week's Scheduled MODIS Activities Not Completed:

None

Upcoming MODIS Events:

Calibrations for October will include two SDSMs Screened (DOY 278, DOY 299), an SRCA Radiometric (DOY 284), an SRCA Spatial (DOY 298), and a Lunar Roll (DOY 300).

Maneuvers:

The Terra Inclination Adjustment Maneuver (IAM) #27 on DOY 301 (10/28/2010) was completed successfully. Spacecraft maneuver start on DOY 301 was 301/ 15:34:33 and maneuver was for 301/ 15:39:53. The loss of pointing accuracy time is 301/14:03:00 - 301/17:48:29.

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. Terra is capable of continuing nominal operations with multiple cell failures. Science data acquisition has remained nominal throughout the anomaly and troubleshooting timeframe. Information will be updated periodically. 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: 295.2 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: 99.0 of 500 hours

SRCA 1W Lamp #1: 579.0 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