[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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