[Isocops] IBEX Orbit# 110 ATS - approve
Mark Tapley
mtapley at swri.edu
Mon Jan 10 13:43:51 EST 2011
All,
I have looked at the Orbit 110 ATS v003
(IBEX_2011_018_00_00_v003.txt) and I approve.
The standard "PL mode unknown at the beginning" constraint
violation is the only one.
The PL commands in the ATS v001 match the STF v002 file
(IBEX_2011_019_02_38_v002.stf) per Ken's script (thanks again, Ken!).
ATS v001 and v003 only differ in filename line and the battery cell
balancing commands, so the PL commands still match.
PL ascending operations make sense WRT 15 Re ascending time.
PL descending operations occur ~13.5 hours early wrt 15 Re
descending; this is expected, due to the sun-pointing maneuver at the
end of Orbit 109, and matches the STF.
Ground station times match S/C times for all 4 contacts.
Battery cell balancing is > 1 hour from anything and outside
of eclipse time.
The sun-pointing maneuver this orbit is back to an inertial
burn. Ibex_rotate says we are pointing in safe directions at burn
time, at the following 15 Re ascending, and at the following 15 Re
descending:
[tapley at ena ~]$ ibex_rotate -o -u
0.5969414641591426,-0.7361865795339841,-0.3188890222030104 -w
ibex-sun -t 2011/01:26:04:28:23
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.596941,-0.736187,-0.318889
which is R.A. +309.037 Decl. -18.596
missing R.A. +308.054 Decl. -18.866 (ibex-sun)
error is R.A. +0.983 Decl. +0.270
for a total 0.970 deg
[tapley at ena ~]$ ibex_rotate -o -u
0.5969414641591426,-0.7361865795339841,-0.3188890222030104 -w
ibex-sun -t 2011-01-26T19:20:06.839Z
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.596941,-0.736187,-0.318889
which is R.A. +309.037 Decl. -18.596
missing R.A. +308.715 Decl. -18.673 (ibex-sun)
error is R.A. +0.322 Decl. +0.078
for a total 0.315 deg
[tapley at ena ~]$ ibex_rotate -o -u
0.5969414641591426,-0.7361865795339841,-0.3188890222030104 -w
ibex-sun -t 2011-02-02T10:35:41.776Z
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.596941,-0.736187,-0.318889
which is R.A. +309.037 Decl. -18.596
missing R.A. +315.518 Decl. -16.920 (ibex-sun)
error is R.A. +6.481 Decl. +1.676
for a total 6.395 deg
O-mode coming up orbit 111.
At 10:31 -0500 1/10/11, Ibex Mission Operations wrote:
>On Mon, Jan 10, 2011 at 1:40 AM, Ibex Mission Operations
><<mailto:ibexops at gmail.com>ibexops at gmail.com> wrote:
>
>Guys,
> Here is the ATS for Orbit# 110.
--
- Mark 210-379-4635
-----------------------------------------------------------------------
Large Asteroids headed toward planets
inhabited by beings that don't have
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Think of it as Evolution in Fast-Forward.
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