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Mission Operations Days: 2001/153 to 2001/159
June 02, 2001 00:00:00 GMT to June 08, 2001 00:00:00 GMT

Terra Spacecraft and MODIS Instrument Status:

Terra (AM-1) is in Normal Ops Mode with SSR supersets 30 and 31 unallocated
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, June 2, 2001


Sunday, June 3, 2001


Monday, June 4, 2001


Tuesday, June 5, 2001


Wednesday, June 6, 2001


Thursday, June 7, 2001

2001/158 21:27:15 ATC OA-16: SD/SDSM Screened
2001/158 23:06:08 ATC OA-15: SD/SDSM Open

Friday, June 08, 2001


This Week's Scheduled MODIS Activities Not Completed:


Upcoming MODIS Events:

Saturday, June 9, 2001


Sunday, June 10, 2001

161/21:35?? First attitude disturbances due to config. change for maneuver
161/22:54:37 ATC Move Formatter to Night ahead by 3:23 to ensure 50/50 day/night
161/22:58:54 FOT ATC commanding: Begin slew to -20.0192 degrees
161/23:07:17 ATC Set Formatter to Day Rate
161/23:07:19 ATC Set SCIABNORM Flag to ABNORM
161/23:07:21 ATC PC DC Restore to OFF
161/23:07:23 ATC PV DC Restore to OFF
161/23:07:25 ATC Sector Rotation to -3072 (EA to SV and OBCs)
161/23:13:55 ATC Sector Rotation to Zero (Normal)
161/23:13:57 ATC PV DC Restore to ON
161/23:13:59 ATC PC DC Restore to ON
161/23:14:01 ATC Set SCIABNORM Flag to NORM
161/23:14:03 ATC Set Formatter to Night Rate
161/23:14:35 FOT ATC commanding: Return to nominal attitude
161/23:24?? Final attitude disturbances due to config. change for maneuver
161/23:50:52 ATC Move Formatter to Day later by 3.23 to ensure 50/50 day/night

Monday, June 11, 2001


Tuesday, June 12, 2001


Wednesday, June 13, 2001


Thursday, June 14, 2001


Friday, June 15, 2001


Based on the current operations plan, calibration activities for June will include an SRCA Full Radiometric, PV Ecal, PC Ecal, and weekly SD/SDSM calibrations.


The next MODIS Lunar Roll Maneuver is scheduled for this Sunday, June 10, 2001. The roll angle is -20.0192 degrees with a data collection from 2001/161-23:07:25 to 2001/161-23:13:55.

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. The amount of power required by the focal plane heater to maintain 83.0K is still slowly decreasing, although the spacecraft is currently near the minimum absolute solar beta angle for the year.

Non-MODIS Significant Events:

MOPITT Anomaly:

The MOPITT team is still working to recover their instrument to science operations.

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: 1627 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements