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am1weekly_2004-031_2004-037

Mission Operations Days: 2004/031 to 2004/037
January 31, 2004 00:00:00 GMT to February 06, 2004 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, Screened Permanent Configuration
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 + 11 sets of patches
  • CP07 to Survival Mode - No SDD to closed command (1 patch)
  • CP07 to Safe Mode - No FR OFF Command (1 patch)
  • CP07 to Safe Mode - No SDD to closed 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, January 31, 2004

None

Sunday, February 1, 2004

None

Monday, February 2, 2004

None

Tuesday, February 3, 2004

2004/034 21:14:01-21:22:49 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4 OA-16: SD/SDSM screened side A, no door movement

Wednesday, February 4, 2004

None

Thursday, February 5, 2004

None

Friday, February 6, 2004

None

This Week's Scheduled MODIS Activities Not Completed:

None

Upcoming MODIS Events:

Upcoming February calibrations include weekly SDSM SCREENED, SRCA Full Radiometric, SRCA 10W Radiometric, PV Ecal, and Lunar Calibration.

Tuesday, February 10, 2004

2004/041 18:54:49-18:57:20 ATC MOD_OA27_PV_ECAL.3
PFM Lunar Calibration (-7.5597 roll)
2004/041 20:34:52 ATC MOD_OA03_FR_NIGHT_RATE (03:23 early)
2004/041 20:42:59-20:49:48 ATC MOD_OA08_ROLL_MAN
2004/041 21:19:20-21:28:08 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4 OA-16: SD/SDSM screened side A, no door movement.
2004/041 21:31:04 ATC MOD_OA03_FR_DAY_RATE (03:23 late)
2004/041 22:15:00-22:15:31 ATC MOD_SRCA_NOMINAL_SETUP.4 Setup of nominal lamp configuration for SRCA calibration
2004/041 22:16:18-22:51:28 ATC MOD_OA19_SRCA_FULL_RAD_A.6 OA-19: SRCA Full Radiometric Calibration Data collection from 22:32:12-22:51:28
OA-27: PV ECAL

Maneuvers:

The next Lunar Calibration will occur on DOY 2004/041 (February 10, 2004), with a data collect time from 20:43:07 to 20:49:37. The necessary roll angle is -7.5597degrees. The MODIS data will be adjusted for Day Rate and Sector Rotation as is standard for a Lunar Calibration.

MODIS Anomalies:

MODIS NAD (Nadir Aperture Door) Anomaly:

Telemetry still indicates that the “NAD Open” (MOD_CR_DR_NAD_OPEN) trigger is set to the “NOT_OPEN” position; however, science data has shown that the NAD is open. The NAD OPEN trigger may yet “pop” to OPEN due to thermal cycling on the trigger, as was seen on 2002/079.

Terra SSR Anomaly:

Although not directly the result of a MODIS problem, the most recent Printed Wire Assembly (PWA) failures in the Terra Solid State Recorder (SSR) do affect MODIS data. See the Non-MODIS Significant Events section below for more details.

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 and the Solar Diffuser Door at the Screened position.

MODIS Telemetry Trends:

Nominal telemetry trending is ongoing.

Non-MODIS Significant Events:

Terra Solid State Recorder Anomaly

Overview:

The SSR Anomaly is still under investigation. MODIS currently is operating with 34 Supersets allotted for its buffer. There are plans in the works for possibly power cycling the SSR to get back PWA's that are in the Bad List, but no date has yet been set. There are no current plans for a change in science data capture rates. For details, see previous reports.

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: 225.8 of 500 hours
SRCA 10W Lamp #2: 165.1 of 500 hours
SRCA 10W Lamp #3: 174.3 of 500 hours
SRCA 10W Lamp #4: 62.2 of 500 hours

SRCA 1W Lamp #1: 565.1 of 4000 hours
SRCA 1W Lamp #2: 276.7 of 4000 hours

Solar Diffuser Door: 2146 of 3022 Movements
Nadir Aperture Door: 538 of 1316 Movements
Space View Door: 441 of 1316 Movements

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