CERES-TRMM Operations - July 1999


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
01182X----1------Power off 02:08 UT, Power on 20:50 UT. Instrument powered on for Australia field campaign. Continued to perform Level 2 SWICS tests to 02:00 UT every 10 min. A-B Sync Test 21:20 UT - 21:32 UT. Power off 23:00 UT. Spacecraft yaw maneuver - 18:40 UT, +X to -X forward. Beta changed (+ to - values).
02183X-----2------Power on 19:37 UT, Instrument powered on for Australia field campaign. X-track 19:43 UT; Power off 21:53 UT.
03184X-----5------Power on 20:01 UT, Instrument powered on for Australia field campaign. X-track 20:05 UT, Power off 21:50 UT.
04185X-----7------Power on 18:49 UT, Instrument powered on for Australia field campaign. X-track 18:53 UT, Power off 21:01 UT. Orbit Adjustment (Delta V maneuvers).
05186X-----9------Power on 19:13 UT, Instrument powered on for Australia field campaign. X-track 19:17 UT,
Power off 21:00 UT.
06187InSurvivalMode-11------ 
07188InSurvivalMode-12------ 
08189InSurvivalMode-12------Orbit Adjustment (Delta V maneuvers). Minimum Beta Angle for cycle.
09190InSurvivalMode-12------ 
10191InSurvivalMode-12------ 
11192InSurvivalMode-10------ 
12193InSurvivalMode-9------ 
13194X-----6------Power on 03:00 UT, Instrument powered on for Australia field campaign. X-track 03:05 UT, Power off 04:52 UT.
14195X-----4------Power on 02:22 UT, Instrument powered on for Australia field campaign. X-track 02:27 UT, Power off 05:42 UT. Orbit Adjustment (Delta V maneuvers). UTCF value adjusted. New UTCF value = 31535996.862426 seconds.
15196X-----1------Power on 02:43 UT, Instrument powered on for Australia field campaign. X-track 02:48 UT, Power off 04:29 UT. Spacecraft Yaw maneuver - 10:18:07 UT, -X to +X forward. Beta changed (- to + values).
16197X----3------Nauru experiment. Power on at 01:34 UT; Operations include ABASYNC-Stow; X-track-Noise#1, Solar Cal, & Int Cal. Power off at 06:05 UT; Power on: 22:54 UT; Cross-track: 23:01 - 23:59:59 UT.
17198X----6------Nauru experiment. Cross-track-normal scan at 00:00 UT, Power off at 06:27 UT.
18199InSurvivalMode10------ 
19200InSurvivalMode14------ 
20201InSurvivalMode19------ 
21202InSurvivalMode23------Orbit Adjustment (Delta V maneuvers)
22203InSurvivalMode27------ 
23204InSurvivalMode31------ 
24205InSurvivalMode36------ 
25206InSurvivalMode40------ 
26207InSurvivalMode43------ 
27208InSurvivalMode47------ 
28209InSurvivalMode49------Orbit Adjustment (Delta V maneuvers)
29210InSurvivalMode52------UTCF value adjusted. New UTCF value = 31535996.861549 seconds.
30211InSurvivalMode53------ 
31212InSurvivalMode53------Maximum Beta Angle for cycle

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