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am1weekly_2001-216_2001-222

Mission Operations Days: 2001/216 to 2001/222
August 04, 2001 00:00:00 GMT to August 10, 2001 00:00:00 GMT


Terra Spacecraft and MODIS Instrument Status:

Terra (AM-1) is in Normal Ops Mode
MODIS is in Science Mode - A Side
ComponentState(s)Comment
BlackbodyA On (290 K); B OffNominal
Calibration ElectronicsA On; B OffNominal
Control ProcessorA On; B OffNominal
Nadir DoorUnlatched, OpenNominal
Space View DoorUnlatched, OpenNominal
Solar Diffuser DoorUnlatched, ClosedNominal
FDDI FormatterA On; B OffNominal
FDDI PortA On; B OffNominal
FIFO Memory#1 & #2 On; #3 & #4 OffNominal
Format ProcessorA On; B OffNominal
Power Supplies#1 On; #2 OffNominal
PV VIS FPAA On; B OffNominal
PV NIR FPAA On; B OffNominal
PV SMIR FPAA On; B OffNominal
PV LWIR FPAA On; B OffNominal
PC LWIR FPAA On; B OffNominal
RC Outgas HeatersAll Off (CS, IS, OS)Nominal
RC LWIR FPA HeaterOn (83 K)Nominal
RC SMIR FPA HeaterOffNominal
Scan AssemblyA On; B OffNominal
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)
Nominal
Inhibit Ids SetNoneNominal
TMON 66 (SRCA A)DisabledNominal
TMON 67 (SRCA B)DisabledNominal
TMON 68 (FIFO)EnabledNominal
TMON 69 (EPS Current)DisabledNominal

This Week's Completed MODIS Activities:

Saturday, August 4, 2001

None

Sunday, August 5, 2001

None

Monday, August 6, 2001

None

Tuesday, August 7, 2001

None

Wednesday, August 8, 2001

2001/220 21:40:08-21:51:36 ATC OA-15: SD/SDSM Open
2001/220 22:31:32-23:05:05 ATC OA-19: Full Radiometric
2001/220 23:19:20-23:30:30 ATC OA-16: SD/SDSM Screened

Thursday, August 9, 2001

2001/221 01:12:45-01:15:16 ATC OA-27: PV ECAL
2001/221 02:50:39-02:55:10 ATC OA-28: PC ECAL

Lunar Roll Maneuver (-7.4496 degree roll)
2001/221 03:00:14 RT FOT Set IRU to high rate for roll maneuver; less pointing accuracy
2001/221 05:12:23 ATC Move Formatter to Night ahead by 3:23 to ensure 50/50 day/night
2001/221 05:30:14 ATC FOT begins spacecraft roll slew to –7.4496 degrees
2001/221 05:34:27 ATC Set Formatter to Day Rate
2001/221 05:34:29 ATC Set SCIABNORM Flag to ABNORM
2001/221 05:34:31 ATC Set PC band DC Restore to OFF
2001/221 05:34:33 ATC Set PV band DC Restore to OFF
2001/221 05:34:35 ATC Set Sector Rotation to –3072 (Earth Aperture to view Space view and OBCs)
2001/221 05:41:05 ATC Set Sector Rotation to Zero (Normal)
2001/221 05:41:07 ATC Set PV band DC Restore to ON
2001/221 05:41:09 ATC Set PC band DC Restore to ON
2001/221 05:41:11 ATC Set SCIABNORM Flag to NORM
2001/221 05:41:13 ATC Set Formatter to Night Rate
2001/221 05:45:02 ATC Spacecraft has returned to nominal attitude
2001/221 06:08:37 ATC Move Formatter to Day later by 3:23 to ensure 50/50 day/night
2001/221 07:15:02 RT FOT set IRU to low rate after roll maneuver; nominal pointing

Lunar Roll Maneuver
2001/221 20:02:23 ATC Move Formatter to Night ahead by 3:23 to ensure 50/50 day/night
2001/221 20:18:31 RT Set SMIR Itwk/Vdet 79/110
2001/221 20:23:29 ATC Set Formatter to Day Rate
2001/221 20:23:31 ATC Set SCIABNORM Flag to ABNORM
2001/221 20:23:33 ATC Set PC band DC Restore to OFF
2001/221 20:23:35 ATC Set PV band DC Restore to OFF
2001/221 20:23:37 ATC Set Sector Rotation to –3072 (Earth Aperture to view Space view and OBCs)
2001/221 20:30:07 ATC Set Sector Rotation to Zero (Normal)
2001/221 20:30:09 ATC Set PV band DC Restore to ON
2001/221 20:30:11 ATC Set PC band DC Restore to ON
2001/221 20:30:13 ATC Set SCIABNORM Flag to NORM
2001/221 20:30:15 ATC Set Formatter to Night Rate
2001/221 20:58:37 ATC Move Formatter to Day later by 3:23 to ensure 50/50 day/night
2001/221 21:10:24 RT Set SMIR Itwk/Vdet 79/190

Friday, August 10, 2001

None

This Week's Scheduled MODIS Activities Not Completed:

None

Upcoming MODIS Events:

Friday, August 10, 2001

None

Saturday, August 11, 2001

None

Sunday, August 12, 2001

None

Monday, August 13, 2001

None

Tuesday, August 14, 2001

None

Wednesday, August 15, 2001

None

Thursday, August 16, 2001

None

Friday, August 17, 2001

None

Maneuvers:

The MODIS Lunar Roll Calibration went as planned on August 9, 2001 ( DOY 221 ) from 05:24:35 to 05:31:05. A second lunar calibration was also performed without a roll maneuver on the same day from 20:23:37 to 20:30:07. During the second roll, the SMIR Itwk/Vdet was temporarily set to 79/110.

MODIS Anomalies:

None

General Instrument Comments:

MODIS is in Science Mode on the A-side with the SVD and NAD open, operating with the Formatter Resolution Flight Software Patches (FRFSP).

MODIS Telemetry Trends:

Trending has resumed with the instrument on the A-side. All appears nominal at this time.

Non-MODIS Significant Events:

None.

Limited Life Item Status:

SRCA 10W Lamp #1: 189.1 of 500 hours
SRCA 10W Lamp #2: 144.8 of 500 hours
SRCA 10W Lamp #3: 154.0 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours

SRCA 1W Lamp #1: 558.0 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours

Solar Diffuser Door: 1673 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements