[Isocops] IBEX Orbit# 106 ATS - approve

Mark Tapley mtapley at swri.edu
Thu Dec 9 15:14:43 EST 2010


All,
	I have looked at the Orbit 106 ATS v002 
(IBEX_2010_353_00_00_v002.txt) and I approve.

	The standard "PL mode unknown at the beginning" constraint 
violation is the only one.

	The PL commands from v001 of the ATS match the STF v001 file 
(IBEX_2010_353_08_30_v001.stf) per Ken's script. v001 of the ATS 
differs from v001 only in the addition of the battery balancing 
commands, so v002 also matches the .stf for PL commands.

	PL operations all make sense WRT 15 Re times, ascending and descending.

	Ground station times line up nicely with the transmitter on times.

	Battery cell balancing is > 1 hour from anything.

	The sun-pointing maneuver leaves us in a safe direction at 
the time of the maneuver and at succeeding ascent and descent:


[tapley at ena ~]$ ibex_rotate -o -u 
0.09691140687918273,-0.9132984574584977,-0.39559336043546794 -w 
ibex-sun -t 2010/12:26:13:36:49
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.096911,-0.913298,-0.395593
  which is     R.A. +276.057 Decl. -23.303
  missing      R.A. +274.899 Decl. -23.378 (ibex-sun)
  error is     R.A.   +1.158 Decl.  +0.075
  for a total  1.066 deg
[tapley at ena ~]$ ibex_rotate -o -u 
0.09691140687918273,-0.9132984574584977,-0.39559336043546794 -w 
ibex-sun -t 2010-12-27T05:19:19.884Z
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.096911,-0.913298,-0.395593
  which is     R.A. +276.057 Decl. -23.303
  missing      R.A. +275.634 Decl. -23.319 (ibex-sun)
  error is     R.A.   +0.423 Decl.  +0.016
  for a total  0.388 deg
[tapley at ena ~]$ ibex_rotate -o -u 
0.09691140687918273,-0.9132984574584977,-0.39559336043546794 -w 
ibex-sun -t 2011-01-03T00:39:56.783Z
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.096911,-0.913298,-0.395593
  which is     R.A. +276.057 Decl. -23.303
  missing      R.A. +283.137 Decl. -22.910 (ibex-sun)
  error is     R.A.   +7.080 Decl.  +0.393
  for a total  6.523 deg


At 14:36 -0500 12/9/10, Ibex Mission Operations wrote:
>Guys,
>     Here is V002 of the ATS. ...

-- 
						- Mark     210-379-4635
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