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Mission Operations Days: 2000/358 to 2000/364
December 23, 2000 00:00:00 GMT to December 29, 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
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)
Inhibit Ids SetNoneNominal
TMONs Enabled68Nominal

This Week’s Completed MODIS Activities:

Saturday, December 23, 2000


Sunday, December 24, 2000


Monday, December 25, 2000


Tuesday, December 26, 2000


Wednesday, December 27, 2000


Thursday, December 28, 2000

2000/363 21:00:45 ATC OA-16: SDSM SCREENED
2000/363 22:39:38 ATC OA-15: SDSM OPEN

Friday, December 29, 2000


This Week's Scheduled MODIS Activities Not Completed:


Upcoming MODIS Events:

Friday, December 29, 2000


Saturday, December 30, 2000


Sunday, December 31, 2000


Monday, January 1, 2001


Tuesday, January 2, 2001

2000/002 20:00:20 ATC Set Blackbody to 270K

Wednesday, January 3, 2001

2000/003 14:00:00 ATC Set Blackbody to 280K
2000/003 18:00:00 ATC Set Blackbody to 285K
2000/003 21:00:00 ATC Set Blackbody to 290K

Thursday, January 4, 2001

2000/004 01:00:00 ATC Set Blackbody to 295K
2000/004 01:00:30 ATC Set Blackbody duty cycle to FULL
2000/004 03:00:00 ATC Set Blackbody to 300K
2000/004 05:00:00 ATC Set Blackbody to 315K
2000/004 08:00:00 ATC Set Blackbody to 270K
2000/004 08:00:30 ATC Set Blackbody duty cycle to THIRD

Friday, January 5, 2001

2000/005 04:00:00 ATC Set Blackbody to 290K


Drag makeup maneuver 2000/017 19:38:00 to 2000/017 21:08:00.

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:


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: 1489 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements