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CERES-TRMM Table of Operations


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Image: Previous Month March 1999 Image: Next Month
Day
of
Month
Day
of
Year
Scan Mode Beta
Angle,
deg
Calibrations, UT Special Operations/Comments
Internal Solar
Cross
Track
Unrestricted
Biaxial
Restricted
Biaxial
Sunrise Sunset
0160InSurvivalMode-13------ 
0261InSurvivalMode-9------ Orbit Adjustment (Delta V maneuvers)
0362X-----4------ Power on 03:03, Normal X-track [Az = 180 degs] 04:59,
X-track at az = 243.66 deg 08:59 [ScaRaB comparisons], Power off 10:40,
Power on 19:19, X-track at Az at 243.66 deg 21:01.
0463X----1------ Spacecraft yaw maneuver - 03:20:57 UT, -X to +X forward. Beta changed (- to + values).
Normal X-track [Az = 180 deg] 01:52, Power off 07:47
0564X----5------ Power on 02:26, Normal X-track 03:53, Power off 08:19,
Power on 18:31, X-track at az = 243.66 deg 19:38.
0665X----1002:44:12-- 00:43:10Special internal calibration. Orbit Adjustment (Delta V maneuvers)

Normal X-track [Az = 180 deg] 01:18, Power off 07:00.
0766X----14------ Power on 01:29, Normal X-track [Az = 180 deg] 02:29, Power off 08:01, Power on 22:39.
0867X----18------ Normal X-track [Az = 180 deg] 00:24,
X-track at az = 243.66 deg [ScaRaB overlap, Sun-avoidance commanding] 09:24,
Normal X-track 13:27, Power off 13:28.
0968X----22------ Power on 00:32, Normal X-track [Az = 180 deg] 00:41, Power off 08:10,
Power on 16:34, X-track at Az = 243.66 deg, Sun-avoidance commanding 18:06,
Normal X-track 21:50, Power off 21:52.
1069InSurvivalMode25------ Orbit Adjustment (Delta V maneuvers)
1170InSurvivalMode28------ 
1271InSurvivalMode30------ 
1372InSurvivalMode31------ 
1473InSurvivalMode32------ Orbit Adjustment (Delta V maneuvers)
1574InSurvivalMode33------ Maximum Beta Angle for cycle.
1675InSurvivalMode32------ 
1776X----31------ Power on 05:36, Normal X-track [Az = 180 deg] 08:06, Power off 13:42.
1877X----29------ Power on 06:53, Normal X-track [Az = 180 deg] 08:35, [ A to B ASYNCH AZIMUTH SCAN; Head stowed] 07:05, Power off 13:31. Orbit Adjustment (Delta V maneuvers)
1978X----27------ Power on 07:22, Normal X-track [Az = 180 deg] 08:06, Power off 15:31.
2079X----24------ Power on 07:52, Normal X-track [Az = 180 deg] 08:25, Power off 12:42.
2180X----21------ Power on 05:01, Normal X-track [Az = 180 deg] 06:34, Power off 11:44.
2281X----17------ Power on 05:20, Normal X-track [Az = 180 deg] 07:35, Power off 11:56.
Orbit Adjustment (Delta V maneuvers)
2382X----14------ Power on 03:08, Normal X-track [Az = 180 deg] 04:07, Power off 10:41.
2483X----10------ Power on 05:09, Normal X-track [Az = 180 deg] 05:24, Power off 11:13.
2584X----6------ Power on 03:56, Normal X-track [Az = 180 deg] 05:27, Power off 10:03.
2685X----2------ Power on 05:22, Normal X-track [Az = 180 deg] 05:37, Power off 10:33.
Spacecraft Yaw maneuver - 14:51:27 UT, +X to -X forward. Beta changed (+ to - values)
2786InSurvivalMode-3------ Orbit Adjustment (Delta V maneuvers)
2887InSurvivalMode-7------ 
2988X-----10------ Power on 23:08, Normal X-track [Az = 180 deg] 23:40.
3089X-----14------ Power off 04:32, Power on 15:10, Normal X-track [Az = 180 deg] 16:20, Power off 20:39.
3190X-----18------ Power on 05:58, Normal X-track [Az = 180 deg] 07:40, Power off 12:29, Power on 23:02.
 
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Page Curator: Edward Kizer
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