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am1weekly_2001-195_2001-201

Mission Operations Days: 2001/195 to 2001/201
July 14, 2001 00:00:00 GMT to July 20, 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
Component State(s) Comment
Blackbody A On (290 K); B Off Nominal
Calibration Electronics A On; B Off Nominal
Control Processor A On; B Off Nominal
Nadir Door Unlatched, Open Nominal
Space View Door Unlatched, Open Nominal
Solar Diffuser Door Unlatched, Closed Nominal
FDDI Formatter A On; B Off Nominal
FDDI Port A On; B Off Nominal
FIFO Memory #1 & #2 On; #3 & #4 Off Nominal
Format Processor A On; B Off Nominal
Power Supplies #1 On; #2 Off Nominal
PV VIS FPA A On; B Off Nominal
PV NIR FPA A On; B Off Nominal
PV SMIR FPA A On; B Off Nominal
PV LWIR FPA A On; B Off Nominal
PC LWIR FPA A On; B Off Nominal
RC Outgas Heaters All Off (CS, IS, OS) Nominal
RC LWIR FPA Heater On (83 K) Nominal
RC SMIR FPA Heater Off Nominal
Scan Assembly A On; B Off Nominal
SDSM A Off; B Off Nominal
SRCA A Off; B Off Nominal
PS1 Survival Heater Enabled Nominal
PS2 Survival Heater Enabled Nominal
Timing Generator A Off; B On Nominal
Flight Software Rev BD + 1 set of patches
  • FR Error Counting and Statistics (2 patches)
Nominal
Inhibit Ids Set None Nominal
TMON 66 (SRCA A) Disabled Nominal
TMON 67 (SRCA B) Disabled Nominal
TMON 68 (FIFO) Enabled Nominal
TMON 69 (EPS Current) Disabled Nominal

This Week's Completed MODIS Activities:

Friday, July 13, 2001

2001/194 22:00:00 ATC Set Blackbody temperature to 290K

Saturday, July 14, 2001

2001/195 02:00:00 ATC Set Blackbody temperature to 295K
2001/195 02:00:30 ATC Set Blackbody duty cycle to FULL
2001/195 04:00:00 ATC Set Blackbody temperature to 300K
2001/195 06:00:00 ATC Set Blackbody temperature to 315K
2001/195 09:00:00 ATC Set Blackbody temperature to 270K
2001/195 09:00:30 ATC Set Blackbody duty cycle to THIRD

Sunday, July 15, 2001

2001/196 05:00:00 ATC Set Blackbody temperature to 290K

Monday, July 16, 2001

None

Tuesday, July 17, 2001

None

Wednesday, July 18, 2001

2001/199 21:20:28 ATC OA-16: SD/SDSM Screened
2001/199 22:59:21 ATC OA-15: SD/SDSM Open

Thursday, July 19, 2001

None

Friday, July 20, 2001

None

This Week's Scheduled MODIS Activities Not Completed:

None

Upcoming MODIS Events:

During the upcoming week, it is planned to collect an extra 20 minutes of DAY rate data while the spacecraft is over the night side of the Earth. Solar Diffuser calibrations will likely occur on Wednesday, although the precise times have not yet been determined.

Friday, July 20, 2001

None

Saturday, July 21, 2001

None

Sunday, July 22, 2001

None

Monday, July 23, 2001

None

Tuesday, July 24, 2001

None

Wednesday, July 25, 2001

None

Thursday, July 26, 2001

None

Maneuvers:

The next MODIS Lunar Roll Calibration is scheduled for August 9, 2001 ( DOY 221 ) from 05:24:35 to 05:31:05. A second lunar calibration will be performed without a roll maneuver on the same day from 20:23:37 to 20:30:07.

MODIS Anomalies:

Investigation into the PS2 shutdown anomaly is still underway. An anomaly report is expected by the end of this month.

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: 189.0 of 500 hours
SRCA 10W Lamp #2: 144.7 of 500 hours
SRCA 10W Lamp #3: 153.9 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours

SRCA 1W Lamp #1: 557.9 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours

Solar Diffuser Door: 1651 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements