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am1weekly_2003-074_2003-080

Mission Operations Days: 2003/074 to 2003/080
March 15, 2003 00:00:00 GMT to March 21, 2003 00:00:00 GMT


Terra Spacecraft and MODIS Instrument Status:

AM-1 "Terra" is in Normal Mode
PFM MODIS is in A-Side Nominal Science Mode
(Cross Strapped with FR B)
Component State(s) Comment
Blackbody A On (290K); B Off Nominal Science Mode
Calibration Electronics A On; B Off Nominal Science Mode
Control Processor A On; B Off Nominal Science Mode
Nadir Door Unlatched, Open Nominal Science Mode
Space View Door Unlatched, Open Nominal Science Mode
Solar Diffuser Door Unlatched, Closed Nominal Science Mode
FDDI Formatter A On; B Off Nominal Science Mode
FDDI Port A On; B Off Nominal Science Mode
FIFO Memory #1 & #2 On; #3 & #4 Off Nominal Science Mode
Format Processor A Off; B On Nominal Science Mode
Power Supplies #1 On, #2 Off Nominal Science Mode
PV VIS FPA A On; B Off Nominal Science Mode
PV NIR FPA A On; B Off Nominal Science Mode
PV SMIR FPA A On; B Off Nominal Science Mode
PV LWIR FPA A On; B Off Nominal Science Mode
PC LWIR FPA A On; B Off Nominal Science Mode
RC Outgas Heaters All 3 (CS, IS, OS) Off Nominal Science Mode
RC LWIR FPA Heater On (83K) Nominal Science Mode
RC SMIR FPA Heater Off Nominal Science Mode
Scan Assembly A On; B Off Nominal Science Mode
SDSM Off Nominal Science Mode
SRCA Off Nominal Science Mode
PS1 Survival Heater Enabled Nominal Science Mode
PS2 Survival Heater Enabled Nominal Science Mode
Timing Generator A On; B Off Nominal Science Mode
Flight Software Rev BD + 9 sets of patches
  • CP07 to Safe Mode - No FR OFF Command (1 patch)
  • CP07 to Science Mode - Turn on FRB instead of FRA (1 patch)
  • CP07 to Outgas and Science Mode - Turn on FRB instead of FRA (1 patch)
  • FR Error Counting and Statistics (2 patches)
  • FR 1000ms time code patches (3 patches)
  • FR Band 5 Gain Change (20 commands)
  • FR BB Ideal Output Values (1 patch)
  • FR A EEPROM KME Fast 1 word patch (1 patch)
  • FR B EEPROM KME Fast 1 word patch (1 patch)
Nominal Science Mode
Inhibit Ids Set none Nominal Science Mode
TMON 66 Disabled Nominal Science Mode
TMON 67 Disabled Nominal Science Mode
TMON 68 Enabled Nominal Science Mode
TMON 69 Disabled Nominal Science Mode

This Week’s Completed MODIS Activities:

Saturday, March 15, 2003

None

Sunday, March 16, 2003

None

Monday, March 17, 2003

None

Tuesday, March 18, 2003

None

Wednesday, March 19, 2003

None

Thursday, March 20, 2003

None

Friday, March 21, 2003

None

This Week’s Scheduled MODIS Activities Not Completed:

None

Upcoming MODIS Events:

Saturday, March 22, 2003

MODIS Lunar Calibration
2003/081 07:00:51 ATC MOD_OA04_NIGHT_RATE.1 Formatter to Night rate moved 03:23 earlier to balance extra lunar calibration day rate data.
2003/081 07:09:42-07:16:28 ATC MOD_OA08_ROLL_MAN.3 OA08: Lunar calibration during spacecraft roll maneuver
2003/081 07:57:03 ATC MOD_OA03_NIGHT_RATE.2 Formatter to Day rate moved 03:23 later to balance extra lunar calibration day rate data.

Tuesday, March 25, 2003

2003/084 16:31:57 ATC MOD_OA16_SD_SCREEN_FXD_SUN_A.1 OA16: SD/SDSM Screened with SDSM Fixed At Sun View - A Side
2003/084 18:10:50 ATC MOD_OA15_SD_OPEN_FIXED_SD_A.1 OA15: SD/SDSM Screened with SDSM Fixed At SD View - A Side

March calibrations for the PFM MODIS instrument include a biweekly SD calibration.

The following activities have been scheduled for the upcoming Terra Deep Space Calibration maneuver and the backup maneuver. If the first maneuver is successful, the backup activities will be unscheduled.

Wednesday, March 26, 2003

Terra Deep Space Calibration (DSC) Maneuver (no Lunar View)
2003/085 14:04:05 FR to DAY (NADIR to DAY)
2003/085 14:17:05 FR to NIGHT (NADIR to DAY+00:13:00)
2003/085 14:53:31 FR to DAY (NADIR to NIGHT)
2003/085 15:29:58 FR to NIGHT (NADIR to DAY-00:13:00)
2003/085 15:42:58 FR to DAY (NADIR to DAY)

Maneuvers:

The next Terra MODIS lunar calibration is being planned for March 22, 2003 with a roll angle of -20.0000 degrees and data collection from 07:09:50 to 07:16:20 GMT. The optimal roll angle is actually -20.6 degrees. However, the moon will still be in the field of view of the space view port using the maximum allowed roll angle of –20.0 degrees.

The Terra Deep Space Calibration Maneuvers are now being planned for March 26, 2003 (without the moon in the instruments fields of view) and April 14, 2003 (with the moon in the spacecraft orbit plane). The March 26, 2003 maneuver will start at 2003/085-14:53:32 GMT and will be completed at 15:29:26. The backup date scheduled (in the event the maneuver has to be "waved off") for the maneuver is 2003/088 15:37:07. The April 14, 2003 maneuver will start at 2003/104-21:57:56 GMT and will be completed at 22:33:50. The time of the maneuvers may fluctuate as a result of orbit changes.

For approximately 36 minutes prior to the maneuver, the MODIS instrument will be configured to collect data at the formatter Night rate. During the maneuver, data collection will be at the formatter Day rate. Following the maneuver, the high-rate instrument data feeds (including MODIS’) to the Terra solid state recorder will be disabled until the maneuver data are successfully captured on the ground through two different downlink opportunities.

MODIS Anomalies:

None

General Instrument Comments:

MODIS is in Science Mode, using all A-side components, but cross-strapped to Formatter B, with the blackbody maintained at 290K.

MODIS Telemetry Trends:

Nominal telemetry trending is ongoing.

Non-MODIS Significant Events:

The EMOS mission status webpage (which includes instrument data loss records) can be found at the following URL. Note that a password is now required to access the EOS mission links web pages. There are directions at the URL below for how to obtain a username/password.

http://jupiter02.gsfc.nasa.gov/links/links.htm

Limited Life Item Status:

SRCA 10W Lamp #1: 208.9 of 500 hours
SRCA 10W Lamp #2: 157.7 of 500 hours
SRCA 10W Lamp #3: 166.9 of 500 hours
SRCA 10W Lamp #4: 61.9 of 500 hours

SRCA 1W Lamp #1: 561.5 of 4000 hours
SRCA 1W Lamp #2: 276.5 of 4000 hours

Solar Diffuser Door: 2121 of 3022 Movements
Nadir Aperture Door: 536 of 1316 Movements
Space View Door: 439 of 1316 Movements