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am1weekly_2000-120_2000-126

Mission Operations Days: 2000/120 to 2000/126
April 29, 2000 00:00:00 GMT to May 05, 2000 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
MODIS has no known Anomalies
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 On; B OffNominal
Flight SoftwareRev BD + 1 set of patches
  • FR Band 14H Gain Change (10 commands)
Nominal
Inhibit Ids SetNoneNominal
TMONs Enabled66, 67Nominal

This Week’s Completed MODIS Activities:

Friday, April 28, 2000

2000/119 20:45:55 Real-time Open Nadir Aperture Door
2000/119 20:59:47 Real-time Door Table Dump (Table 18)
2000/119 21:02:16 Real-time Clear Inhibit ID #34 (SVD & NAD)
118/21:02:49 Real-time Clear Inhibit ID #58 (Door Power)

Saturday, April 29, 2000

None

Sunday, April 30, 2000

None

Monday, May 1, 2000

2000/122 13:34:34 ATC OA-16 SD/SDSM Screened
2000/122 20:02:00 ATC Blackbody to 270K
2000/122 23:27:50 ATC OA-15 SD/SDSM Open

Tuesday, May 2, 2000

2000/123 14:00:00 ATC Blackbody to 315K
2000/123 16:22 Real-time Set Blackbody duty cycle to 100%
2000/123 21:00:00 ATC Blackbody to 270K
2000/123 21:23 Real-time Set Blackbody duty cycle to 33%

Wednesday, May 3, 2000

2000/124 13:22:01 ATC OA-16 SD/SDSM Screened
2000/124 19:00:00 ATC Blackbody to 290K
2000/124 19:19:58 Real-time Set inhibit ID #54 (SRCA)
2000/124 21:49:54 ATC Turn PC DC Restore OFF
2000/124 21:49:56 ATC Turn PV DC Restore OFF
2000/124 21:49:58 ATC Sector Rotation to -3400
2000/124 22:21:35 ATC Sector Rotation to 0
2000/124 22:21:37 ATC Turn PV DC Restore ON
2000/124 22:21:39 ATC Turn PC DC Restore ON

Thursday, May 4, 2000

2000/125 02:44:54 ATC Turn PC DC Restore OFF
2000/125 02:44:56 ATC Turn PV DC Restore OFF
2000/125 02:44:58 ATC Sector Rotation to -3400
2000/125 03:16:35 ATC Sector Rotation to 0
2000/125 03:16:37 ATC Turn PV DC Restore ON
2000/125 03:16:39 ATC Turn PC DC Restore ON
2000/125 04:37 Real-time Clear inhibit ID #54 (SRCA)
2000/125 08:17:21 -- 10:15:59 ATC OA20: 10W Radiometric (Radiance feedback w/ ND)
2000/125 16:31:43 -- 18:30:21 ATC OA20: 10W Radiometric (Constant Current w/ ND)

Friday, May 5, 2000

2000/126 04:03:18 -- 06:02:28 ATC OA21: 1W Radiometric Continuous (Radiance feedback)
2000/126 13:09:27 ATC OA-16 SD/SDSM Screened

This Week's Scheduled MODIS Activities Not Completed:

Wednesday, May 3, 2000

2000/124 21:50:00 -- 22:21:33 ATC OA25: SRCA 10W Spatial with Neutral Density filter (inhibited)

Thursday, May 4, 2000

2000/125 02:45:00 -- 03:16:33 ATC OA25: SRCA 10W Spatial with Spectral Slit (inhibited)

Both of these activities were inhibited because the SRCA sector delays would not have been effective with the scheduled sector rotation. The DC Restore toggling and sector rotation did occur as scheduled and thus did disrupt normal science data collection during these periods.

Upcoming MODIS Events:

Friday, May 5, 2000

2000/126 22:53:49 -- 23:20:26 ATC OA25: 1W Spatial (position 0)
2000/126 23:30:52 -- 23:57:29 ATC OA25: 1W Spatial (position 3)

Saturday, May 6, 2000

2000/127 00:07:55 -- 00:34:32 ATC OA25: 1W Spatial (position 6)
2000/127 00:45:03 -- 01:11:40 ATC OA25: 1W Spatial (position 1)
2000/127 01:22:06 -- 01:48:43 ATC OA25: 1W Spatial (position 4)
2000/127 01:59:09 -- 02:25:46 ATC OA25: 1W Spatial (position 7)
2000/127 02:36:17 -- 03:02:54 ATC OA25: 1W Spatial (position 2)
2000/127 03:13:20 -- 03:39:57 ATC OA25: 1W Spatial (position 5)

Sunday, May 7, 2000

None

Monday, May 8, 2000

2000/129 12:00:00 ATC Blackbody to 270K
2000/129 16:10:19 - 16:43:52 ATC OA19: SRCA Full Radiometric

Tuesday, May 9, 2000

130/00:24:41 - 02:19:28 ATC OA21: SRCA 1W Radiometric Continuous w/ radiance feedback
130/06:00:00 ATC Blackbody to 280K
130/10:00:00 ATC Blackbody to 285K
130/12:00:00 ATC Blackbody to 290K
130/14:00?? Real-time Set Blackbody duty cycle to FULL
130/14:00:00 ATC Blackbody to 295K
130/16:00:00 ATC Blackbody to 300K
130/18:00:00 ATC Blackbody to 315K
130/20:00:00 ATC Blackbody to 270K
130/20:00?? Real-time Set Blackbody duty cycle to THIRD

Wednesday, May 10, 2000

131/14:18:49 - 15:16:20 ATC OA23: SRCA Full Spatial
131/19:00:00 ATC Blackbody to 290K

Thursday, May 11, 2000

None

Friday, May 12, 2000

133/02:31:04 - 03:22:43 ATC OA22: SRCA Full Spectral Part 1 (Macro 18)
133/04:25:50 - 05:00:35 ATC OA22: SRCA Full Spectral Part 2 (Macro 19)
133/05:48:17 - 06:39:33 ATC OA22: SRCA Full Spectral Part 3 (Macro 20)
133/07:43:32 - 08:21:30 ATC OA22: SRCA Full Spectral Part 4 (Macro 21)

Note: Here is an approximate orbit "position" diagram showing where the various OA25 activities on ops days 126 and 127 will begin within the orbit. The 10.2 minute data collection begins 15:54 after the activity start time.

3 2 1
SUN 4 x 0
5 6 7

Maneuvers:

Wednesday, May 17, 2000 19:10:00 - Drag make-up maneuver

MODIS Anomalies:

None.

General Instrument Comments:

MODIS is in Science Mode on the A-side with the SVD and NAD open.

MODIS Telemetry Trends:

Telemetry is nominal.

Non-MODIS Significant Events:

None.

Limited Life Item Status:

SRCA 10W Lamp #1: 157.3 of 500 hours
SRCA 10W Lamp #2: 129.4 of 500 hours
SRCA 10W Lamp #3: 138.6 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours

SRCA 1W Lamp #1: 547.5 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours

Solar Diffuser Door: 1335 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements