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Mission Operations Days: 2000/309 to 2000/315
November 04, 2000 00:00:00 GMT to November 10, 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:

Friday, November 3, 2000

2000/308 21:44:49-22:42:20 ATC OA-23: SRCA Full Spatial

Saturday, November 4, 2000

2000/309 06:14:00-06:31:00 ATC Formatter Day Rate Science Collection during Nadir Ground Track Night. (3+ Granules)
2000/309 21:39:13-21:41:44 ATC OA-27: PV ECAL
2000/309 21:44:13-21:48:44 ATC OA-28: PC ECAL

Sunday, November 5, 2000


Monday, November 6, 2000


Tuesday, November 7, 2000


Wednesday, November 8, 2000


Thursday, November 9, 2000


Friday, November 10, 2000


This Week's Scheduled MODIS Activities Not Completed:


Upcoming MODIS Events:

Friday, November 10, 2000


Saturday, November 11, 2000


Sunday, November 12, 2000


Monday, November 13, 2000


Tuesday, November 14, 2000


Wednesday, November 15, 2000

Roll Maneuver:
320/22:15:29 ATC Move Formatter to Night ahead by 3:23 to ensure 50/50 day/night
320/22:47:43 ATC Set Formatter to Day Rate
320/22:47:45 ATC Set SCIABNORM Flag to ABNORM
320/22:47:47 ATC PC DC Restore to OFF
320/22:47:49 ATC PV DC Restore to OFF
320/22:47:51 ATC Sector Rotation to -3072 (EA to SV and OBCs)
320/22:54:21 ATC Sector Rotation to Zero (Normal)
320/22:54:23 ATC PC DC Restore to ON
320/22:54:25 ATC PV DC Restore to ON
320/22:54:27 ATC Set SCIABNORM Flag to NORM
320/22:54:29 ATC Set Formatter to Night Rate
320/23:11:41 ATC Move Formatter to Day later by 3:23 to ensure 50/50 day/night

Thursday, November 16, 2000


Friday, November 17, 2000

Leonid Meteor shower Nov 17th & 18th: MODIS will remain in nominal B-side science operations, however, all calibration activities will be suspended during this time.


Wednesday, November 15, 2000

The next MODIS Roll Maneuver is schedule for DOY 320 22:41:59 to 22:58:59 for a roll angle of -11.5506 degrees.

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 304.

MODIS Telemetry Trends:

The Radiative Cooler intermediate stage temperature has slowly been increasing since approximately day 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: 173.8 of 500 hours SRCA 10W Lamp #2: 136.3 of 500 hours SRCA 10W Lamp #3: 145.5 of 500 hours SRCA 10W Lamp #4: 61.5 of 500 hours

SRCA 1W Lamp #1: 556.1 of 4000 hours SRCA 1W Lamp #2: 276.3 of 4000 hours

Solar Diffuser Door: 1453 of 3022 Movements Nadir Aperture Door: 532 of 1316 Movements Space View Door: 437 of 1316 Movements