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Mission Operations Days: 2001/132 to 2001/138
May 12, 2001 00:00:00 GMT to May 18, 2001 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
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 + 2 set of patches
  • FR Error Counting and Statistics (2 patches)
  • FR Band 5 Gain Change (20 commands)
Inhibit Ids SetNoneNominal
TMONs Enabled68Nominal

This Week's Completed MODIS Activities:

Saturday, May 12, 2001


Sunday, May 13, 2001


Monday, May 14, 2001


Tuesday, May 15, 2001


Wednesday, May 16, 2001


Thursday, May 17, 2001

2001/137 21:14:01 ATC OA16: SDSM SCREENED
2001/137 22:52:54 ATC OA15: SDSM OPEN

Friday, May 18, 2001


This Week's Scheduled MODIS Activities Not Completed:


Upcoming MODIS Events:

Saturday, May 19, 2001


Sunday, May 20, 2001


Monday, May 21, 2001


Tuesday, May 22, 2001


Wednesday, May 23, 2001


Thursday, May 24, 2001


Friday, May 25, 2001



There will be no MODIS Lunar Roll Maneuver in May because the roll angle would have been too great (more than 20-degree roll required).

The next MODIS Lunar Roll Maneuver is scheduled for June 10, 2001.

MODIS Anomalies:


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).

MODIS Telemetry Trends:

Telemetry is trending nominally.

Non-MODIS Significant Events:

MOPITT Anomaly:

MOPITT's Displacement Side B position went Red (at 2001/127-04:07) during a Real-Time contact on DOY 127. The Flight Controllers sent the Red Limit Response procedure to Safe the Instrument (at 2001/127-04:18).

After analyzing telemetry history, the MOPITT team has determined the event was not critical. MOPITT has been commanded into its Standby Mode. The MOPITT IOT plans to transition out of Standby to Science Mode sometime next week pending final analysis verification.

Limited Life Item Status:

SRCA 10W Lamp #1: 186.0 of 500 hours
SRCA 10W Lamp #2: 142.9 of 500 hours
SRCA 10W Lamp #3: 152.1 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours

SRCA 1W Lamp #1: 557.5 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours

Solar Diffuser Door: 1615 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements