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am1weekly_2000-344_2000-350

Mission Operations Days: 2000/344 to 2000/350
December 09, 2000 00:00:00 GMT to December 15, 2000 00:00:00 GMT


Terra Spacecraft and MODIS Instrument Status:

Terra (AM-1) is in Normal Ops Mode
MODIS is in Science Mode - B Side
ComponentState(s)Comment
BlackbodyA Off; B On (290 K)Nominal
Calibration ElectronicsA Off; B OnNominal
Control ProcessorA Off; B OnNominal
Nadir DoorUnlatched, OpenNominal
Space View DoorUnlatched, OpenNominal
Solar Diffuser DoorUnlatched, ClosedNominal
FDDI FormatterA Off; B OnNominal
FDDI PortA On; B OffNominal
FIFO Memory#1 & #2 Off; #3 & #4 OnNominal
Format ProcessorA Off; B OnNominal
Power Supplies#1 Off; #2 OnNominal
PV VIS FPAA Off; B OnNominal
PV NIR FPAA Off; B OnNominal
PV SMIR FPAA Off; B OnNominal
PV LWIR FPAA Off; B OnNominal
PC LWIR FPAA Off; B OnNominal
RC Outgas HeatersAll Off (CS, IS, OS)Nominal
RC LWIR FPA HeaterOn (83 K)Nominal
RC SMIR FPA HeaterOffNominal
Scan AssemblyA Off; B OnNominal
SDSMA Off; B OffNominal
SRCAA Off; B OffNominal
PS1 Survival HeaterEnabledNominal
PS2 Survival HeaterEnabledNominal
Timing GeneratorA Off; B OnNominal
Flight SoftwareRev BD + 1 set of patches
  • FR Error Counting and Statistics (2 patches)
Nominal
Inhibit Ids SetNoneNominal
TMONs Enabled68Nominal

This Week’s Completed MODIS Activities:

Saturday, December 9, 2000

None

Sunday, December 10, 2000

None

Monday, December 11, 2000

None

Tuesday, December 12, 2000

None

Wednesday, December 13, 2000

2000/348 21:43:58 ATC OA-16: SDSM Screened
2000/348 23:22:51 ATC OA-15: SDSM Open

Thursday, December 14, 2000

None

Friday, December 15, 2000

Lunar Roll Maneuver (-6.656 degree roll)
2000/350 07:38:27 ATC Move Formatter to Night ahead by 3:23 to ensure 50/50 day/night
2000/350 08:03:46 FOT ATC commanding: Begin Slew to -6.656 degrees
2000/350 08:08:20 ATC Set Formatter to Day Rate
2000/350 08:08:22 ATC Set SCIABNORM Flag to ABNORM
2000/350 08:08:24 ATC PC DC Restore to OFF
2000/350 08:08:26 ATC PV DC Restore to OFF
2000/350 08:08:28 ATC Sector Rotation to -3072 (EA to SV and OBCs)
2000/350 08:14:58 ATC Sector Rotation to Zero (Normal)
2000/350 08:15:00 ATC PC DC Restore to ON
2000/350 08:15:02 ATC PV DC Restore to ON
2000/350 08:15:04 ATC Set SCIABNORM Flag to NORM
2000/350 08:15:06 ATC Set Formatter to Night Rate
2000/350 08:18:38 FOT ATC commanding: Returned to nominal attitude
2000/350 08:34:38 ATC Move Formatter to Day later by 3:23 to ensure 50/50 day/night

This Week's Scheduled MODIS Activities Not Completed:

None

Upcoming MODIS Events:

Friday, December 15, 2000

None

Saturday, December 16, 2000

None

Sunday, December 17, 2000

None

Monday, December 18, 2000

None

Tuesday, December 19, 2000

None

Wednesday, December 20, 2000

None

Thursday, December 21, 2000

None

Friday, December 22, 2000

None

Maneuvers:

None.

MODIS Anomalies:

No formatter anomalies have been detected since switching to B-side science operations. The MODIS IOT is continuing to monitor changes with the radiative cooler temperatures and focal plane power.

General Instrument Comments:

MODIS is in Science Mode on the B-side with the SVD and NAD open, operating with the Formatter Resolution Flight Software Patches (FRFSP). No new events have been witnessed by the FRFSP since the B-Side Transition on DOY 2000/304.

MODIS Telemetry Trends:

The Radiative Cooler intermediate stage temperature has slowly been increasing since approximately DOY 2000/240. During this time the LWIR focal plane heater margin has been decreasing. The IOT is continuing to trend these telemetry mnemonics.

Non-MODIS Significant Events:

None.

Limited Life Item Status:

SRCA 10W Lamp #1: 176.3 of 500 hours
SRCA 10W Lamp #2: 137.6 of 500 hours
SRCA 10W Lamp #3: 146.8 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours

SRCA 1W Lamp #1: 556.3 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours

Solar Diffuser Door: 1477 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements