Mission Operations Days: 2003/067 to 2003/073
March 08, 2003 00:00:00 GMT to March 14, 2003 00:00:00 GMT

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Aqua Spacecraft and MODIS Instrument Status:

PM-1 "Aqua" is in Fine Pointing Normal Mode FM1 MODIS is in B-Side Nominal Science Mode
Component	State(s)	Comment
Blackbody	A Off; B On (285K)	Nominal Science Mode
Calibration Electronics	A Off; B On	Nominal Science Mode
Control Processor	A Off; B On	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 Off; B On	Nominal Science Mode
FDDI Port	A Off; B On	Nominal Science Mode
FIFO Memory	#1 & #2 Off; #3 & #4 On	Nominal Science Mode
Format Processor	A Off; B On	Nominal Science Mode
Power Supplies	#1 Off, #2 On	Nominal Science Mode
PV VIS FPA	A Off; B On	Nominal Science Mode
PV NIR FPA	A Off; B On	Nominal Science Mode
PV SMIR FPA	A Off; B On	Nominal Science Mode
PV LWIR FPA	A Off; B On	Nominal Science Mode
PC LWIR FPA	A Off; B On	Nominal Science Mode
RC Outgas Heaters	All 3 (CS, IS, OS) Off	Nominal Science Mode
RC LWIR FPA Heater	Off	Nominal Science Mode
RC SMIR FPA Heater	On (83K)	Nominal Science Mode
Scan Assembly	A Off; B On	Nominal Science Mode
SDSM	Off	Nominal Science Mode
SRCA	Off	Nominal Science Mode
PS1 Survival Heaters	Enabled	Nominal Science Mode
PS2 Survival Heaters	Enabled	Nominal Science Mode
Timing Generator	A Off; B On	Nominal Science Mode
Flight Software	Rev BJ	Nominal Science Mode
Inhibit Ids Set	None	Nominal Science Mode

This Week's Completed MODIS Activities:

Saturday, March 8, 2003

None

Sunday, March 9, 2003

None

Monday, March 10, 2003

2003/069 20:04:38-20:18:36 MCL MOD_OA16_SDSM_SCREEN.2 OA-16: SD/SDSM Screened - B Side
2003/069 21:43:32-21:57:30 MCL MOD_OA15_OPEN.1 OA-15: SD/SDSM Open - B Side

Tuesday, March 11, 2003

None

Wednesday, March 12, 2003

None

Thursday, March 13, 2003

None

Friday, March 14, 2003

Lunar Roll Maneuver (-13.7657 degree roll)
2003/073 06:39:38 MCL MOD_OA03_FR_DAY_RATE.1 (NADIR Terminator Crossing to DAY + 00:00:00)
2003/073 07:25:51 MCL MOD_OA03_FR_NIGHT_RATE.2 (NADIR Terminator Crossing to NIGHT - 00:03:23)
2003/073 07:37:30-07:44:16 MCL MOD_OA08_ROLL_MAN.1
2003/073 07:37:30 MCL PM1_SCS_ISC_81_MOD_OA08_ROLL_MAN_START_V1
2003/073 07:37:30 FR RATE to DAY
2003/073 07:37:32 FR SCI Flag set to ABNORM
2003/073 07:37:34 FR PC DC Restore set to OFF
2003/073 07:37:36 FR PV DC Restore set to OFF
2003/073 07:37:38 FR Encoder Delta to -3072
Lunar View through Space View Port
2003/073 07:44:08 MCL PM1_SCS_ISC_82_MOD_OA08_ROLL_MAN_END_V1
2003/073 07:44:08 FR Encoder Delta to 0
2003/073 07:44:10 FR PC DC Restore set to ON
2003/073 07:44:12 FR PV DC Restore set to ON
2003/073 07:44:14 FR SCI Flag set to NORM
2003/073 07:44:16 FR RATE to NIGHT
2003/073 08:21:55 MCL MOD_OA03_FR_DAY_RATE.1 (NADIR Terminator Crossing to DAY + 00:03:23)
2003/073 09:08:08 MCL MOD_OA03_FR_NIGHT_RATE.2 (NADIR Terminator Crossing to NIGHT + 00:00:00)

The MOD_OA03_FR_DAY/NIGHT_RATE.1/2 activities are scheduled to balance the FR Data Rate to 50%/50% Day/Night per orbit for the maneuver. They replace the two regularly scheduled activities, MOD_OA03_FR_DAY_NIGHT_SINGLE.1 (ISC SCS 56), at 2003/073 06:39:38 and 2003/073 08:18:32.

This Week's Scheduled MODIS Activities Not Completed:

None

Upcoming MODIS Events:

Monday, March 17, 2003

2003/076 16:01:01-16:01:17 MCL MOD_SRCA_SETUP.2 Configures B Side SRCA for 10W Lamp #1
2003/076 16:01:31-16:17:26 MCL MOD_OA20_SRCA_10W_RAD.1 OA-20: SRCA 10W Radiometric Continuous Data Collection begins at the "end" of the activity
2003/076 16:22:25 Spacecraft Day to Night
2003/076 16:56:16 Spacecraft Night to Day
2003/076 17:01:16-17:01:47 MCL MOD_SRCA_OFF.1 Turns off SRCA

2003/076 18:32:21-18:46:19 MCL MOD_OA16_SDSM_SCREEN.2 OA-16: SD/SDSM Screen - B Side
2003/076 20:11:14-20:25:12 MCL MOD_OA15_SDSM_OPEN.1 OA-15: SD/SDSM Open - B Side

Tuesday, March 18, 2003

2003/077 01:54:21-01:54:37 MCL MOD_SRCA_SETUP_10W_L2.3 Configures B Side SRCA for 10W Lamp #2
2003/077 01:54:51-02:10:46 MCL MOD_OA20_SRCA_10W_RAD.1 OA-20: SRCA 10W Radiometric Continuous - B Side Data Collection begins at the "end" of the activity
2003/077 02:15:45 Spacecraft Day to Night
2003/077 02:49:35 Spacecraft Night to Day
2003/077 02:54:35-02:55:06 MCL MOD_SRCA_OFF.1 Turns off SRCA

2003/077 08:29:54-08:30:10 MCL MOD_SRCA_SETUP_10W_L3.3 Configures B Side SRCA for 10W Lamp #3
2003/077 08:30:24-08:46:19 MCL MOD_OA20_SRCA_10W_RAD.1 OA-20: SRCA 10W Radiometric Continuous - B Side Data Collection begins at the "end" of the activity
2003/077 08:51:18 Spacecraft Day to Night
2003/077 09:25:08 Spacecraft Night to Day
2003/077 09:30:08-09:30:39 MCL MOD_SRCA_OFF.1 Turns off SRCA

2003/077 15:05:27-15:05:43 MCL MOD_SRCA_SETUP_10W_L4.1 Configures B Side SRCA for 10W Lamp #4 (the spare)
2003/077 15:05:57-15:21:52 MCL MOD_OA20_SRCA_10W_RAD.1 OA-20: SRCA 10W Radiometric Continuous - B Side Data Collection begins at the "end" of the activity
2003/077 15:26:51 Spacecraft Day to Night
2003/077 16:00:41 Spacecraft Night to Day
2003/077 16:05:41-16:06:12 MCL MOD_SRCA_OFF.1 Turns off SRCA

A 20-minute FR Day Rate during Night NADIR Ground Track will be performed in the near future. This time will consists of a ground track starting in the South Atlantic and rides up the Western Coastline of the Southern portion of Africa. The Night NADIR Ground Track collection of FR Day Rate Science Data is used to verify and trend the SWIR bands out-of-band correction coefficients.

March calibrations for the FM1 MODIS instrument include an SRCA full radiometric, an SRCA full spatial, Lunar Calibration Roll, and weekly SD calibrations.

A flight software patch is planned to the Control Processor CP07 mode transition table to not turn off the instrument formatter when MODIS transitions to Safe Mode. However, this patch is still postponed until the Aqua BST patch has been implemented.

Maneuvers:

The DMU #9 Maneuver is currently scheduled for March 19, 2003 (DOY 2003/078) at 16:15:00. The burn will last approximately 75 seconds. The slew out and then back will occur at 15:33:00 and 17:07:00, respectively.

The next FM1 MODIS Lunar Calibration via Spacecraft Roll Maneuver is April 12, 2003 (DOY 2003/102) with data collection from 20:23:18 to 20:29:58 GMT and a roll angle of -10.4528 degrees.

The Deep Space Calibration pitch maneuver(s) are still postponed pending the results of the Terra Deep Space Calibration maneuvers currently planned for March 26 and April 14, 2003.

MODIS Anomalies:

Work is still underway to fix the current BST patch as well as modify the final BST patch that was nearing final review approval. This fix will solve the problem of MODIS Ground Command transactions being disabled by MODIS Stored Commands.

General Instrument Comments:

FM1 MODIS is in Science Mode. The SVD and NAD are Open, the survival heaters are enabled, and the Black Body is heated to 285 K.

MODIS Telemetry Trends:

The FM1 MODIS instrument telemetry is trending nominally. The radiative cooler temperatures have leveled off with approximately 37mW of margin left with the SMIR focal plane heater. These telemetry points will continue to be closely monitored.

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 webpages. There are directions at the URL below for how to obtain a username/password.

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

At approximately 2003/036 21:39:02 (Wednesday, Feb. 05, 2003) the HSB Instrument received a Scan Motor Sync Error (HSB_SS_IDFLGW1B09) that did not automatically clear after eight seconds. This was followed by a Sync Failure To Recover indicator alert (HSB_SS_IDFLGW1B11). This failure to recover lead to a sequence of events that placed the HSB Instrument in Survival Mode. HSB remains in Survival Mode to date while anomaly teams assess the situation and plan for a possible return to science mode.

At 15:09:24 on Wednesday, March 5, 2003, the Aqua FOT loaded the Aqua FSW Patch for Geolocation Fix. This patch solves the coordinate system time frame inconsistency on the Star Catalog processing on the GNCC that has caused small amounts of geolocation errors to propagate into the MODIS Science Data. The problem was causing oscillating ground track errors in the order +/- 200 meters. This error has now been reduced to less than +/- 80 meters with the application of the FSW Patch.

On Saturday, March 8, 2003 (DOY 2003/067), the CERES-Aft instrument entered Safe Mode at 10:26:20, as a result of scheduling errors that activated the internal CERES Fault Management inadvertently.

Limited Life Item Status:

SRCA 10W Lamp #1: 214.8 of 500 hours
SRCA 10W Lamp #2: 183.6 of 500 hours
SRCA 10W Lamp #3: 186.4 of 500 hours
SRCA 10W Lamp #4: 57.7 of 500 hours

SRCA 1W Lamp #1: 503.2 of 5000 hours
SRCA 1W Lamp #2: 269.8 of 5000 hours

Solar Diffuser Door: 1966 of 3022 Movements
Nadir Aperture Door: 1053 of 1316 Movements
Space View Door: 632 of 1316 Movements