[Isocops] IBEX Orbit# 132a ATS - approve.
Mark Tapley
mtapley at swri.edu
Wed Jun 29 02:25:26 EDT 2011
All,
I have looked at the Orbit 132 ATS v002
IBEX_2011_190_o0132a_v002.txt
and I approve.
No constraint violations.
The PL commands in the ATS v002 match the STF v001 files
IBEX_2011_190_18_38_v001.stf
per Ken's script (Thanks, Ken!).
PL ascending and descending operations make sense with
respect to 15 Re ascending, Apogee, and 15 Re descending times from
IBEX_2011_190_o0132a_v001.oef
respectively.
Moon in -Lo FOV PMT setback commands in the STF match the
ATS; the .oef Moon-in-Lo FOV times are concentric with the STF times,
as usual. Atypically, the .oef times are shorter than the STF times.
No ground station contact times. I assume those must be
loaded independently.
No battery cell balancing commands despite being an
even-numbered orbit. We just did 7 cycles, Orbit 130.
Inertial maneuver at the end of orbit 131 left us pointing in
a safe direction for ascending and descending macros during first
half of orbit:
[tapley at ena ~]$ ibex_rotate -o -u -0.252058,0.892895,0.373101 -w
ibex-sun -t 2011/07:10:00:33:56
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.252058,+0.892895,+0.373101
which is R.A. +105.764 Decl. +21.907
missing R.A. +108.731 Decl. +22.333 (ibex-sun)
error is R.A. +2.967 Decl. +0.426
for a total 2.781 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.252058,0.892895,0.373101 -w
ibex-sun -t 2011/07:13:11:48:21
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.252058,+0.892895,+0.373101
which is R.A. +105.764 Decl. +21.907
missing R.A. +112.350 Decl. +21.825 (ibex-sun)
error is R.A. +6.586 Decl. +0.082
for a total 6.112 deg
Inertial maneuver at apogee leaves us pointing in a safe
direction at maneuver and at following Ascending and Descending
Macros.
[tapley at ena ~]$ ibex_rotate -o -u -0.322326,0.873326,0.365251 -w
ibex-sun -t 2011/07:13:13:20:11
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.322326,+0.873326,+0.365251
which is R.A. +110.258 Decl. +21.423
missing R.A. +112.416 Decl. +21.815 (ibex-sun)
error is R.A. +2.157 Decl. +0.392
for a total 2.044 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.322326,0.873326,0.365251 -w
ibex-sun -t 2011/07:13:15:07:11
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.322326,+0.873326,+0.365251
which is R.A. +110.258 Decl. +21.423
missing R.A. +112.492 Decl. +21.803 (ibex-sun)
error is R.A. +2.234 Decl. +0.380
for a total 2.111 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.322326,0.873326,0.365251 -w
ibex-sun -t 2011/07:17:21:21:11
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.322326,+0.873326,+0.365251
which is R.A. +110.258 Decl. +21.423
missing R.A. +116.756 Decl. +21.145 (ibex-sun)
error is R.A. +6.498 Decl. +0.278
for a total 6.061 deg
Inertial maneuver at perigee leaves us pointing in a safe
direction at maneuver and at following Apogee.
[tapley at ena ~]$ ibex_rotate -o -u -0.391658,0.84922,0.35416 -w
ibex-sun -t 2011/07:18:08:33:40
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.391658,+0.849220,+0.354160
which is R.A. +114.759 Decl. +20.742
missing R.A. +117.188 Decl. +21.091 (ibex-sun)
error is R.A. +2.429 Decl. +0.349
for a total 2.296 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.391658,0.84922,0.35416 -w
ibex-sun -t 2011-07-22T19:42:33.884Z
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.391658,+0.849220,+0.354160
which is R.A. +114.759 Decl. +20.742
missing R.A. +121.720 Decl. +20.214 (ibex-sun)
error is R.A. +6.961 Decl. +0.528
for a total 6.542 deg
No O-mode this orbit.
No overlaps to orbit 131. I have not checked
http://ibex.unh.edu/cgi-bin/ats.cgi, however. Transmitter on/off
commands will still need to be added and may cause overlaps, which
should not be a problem.
Command Approval Checklist attached.
--
- Mark 210-379-4635
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