[Isocops] IBEX Orbit# 169 ATS v001 - approve
Mark Tapley
mtapley at swri.edu
Tue May 29 09:51:13 EDT 2012
All,
I have looked at the Orbit 169 ATS v001
IBEX_2012_161_o0169a_v001.txt
and I approve.
No constraint violations per .ccvr file:
IBEX_2012_161_o0169a_v001.ccvr
The PL commands in the ATS v001 match the STF v001
IBEX_2012_161_o0169a_v001.stf
per Ken's script (thanks!).
PL ascending and descending operations make sense with
respect to 15 Re ascending, Apogee, and 15 Re descending times from
IBEX_2012_161_o0169a_v001.oef
Star tracker outages on June 17-18 during descending delays
perigee maneuver.
Moon in -LO FOV Commands are within about 2 hours of .oef
times over and ~6 hour eclipse, as normal.
Ground station contact times not checked.
No battery cell balancing this orbit. Did this last 2 orbits,
should skip this orbit.
Inertial maneuver at the end of orbit 168 left us pointing in
a safe direction for ascending and descending macros during first
half of orbit:
[tapley at ena ~]$ ibex_rotate -o -u 0.233612,0.897109,0.374995 -w
ibex-sun -t 2012/06:09:19:10:44
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.233612,+0.897109,+0.374995
which is R.A. +75.404 Decl. +22.024
missing R.A. +78.201 Decl. +23.001 (ibex-sun)
error is R.A. +2.797 Decl. +0.977
for a total 2.762 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.233612,0.897109,0.374995 -w
ibex-sun -t 2012/06:13:08:42:24
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.233612,+0.897109,+0.374995
which is R.A. +75.404 Decl. +22.024
missing R.A. +82.015 Decl. +23.205 (ibex-sun)
error is R.A. +6.611 Decl. +1.181
for a total 6.215 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 0.160014,0.910553,0.381167 -w
ibex-sun -t 2012/06:13:10:26:12
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.160014,+0.910553,+0.381167
which is R.A. +80.033 Decl. +22.406
missing R.A. +82.091 Decl. +23.209 (ibex-sun)
error is R.A. +2.058 Decl. +0.803
for a total 2.060 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.160014,0.910553,0.381167 -w
ibex-sun -t 2012/06:13:12:01:18
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.160014,+0.910553,+0.381167
which is R.A. +80.033 Decl. +22.406
missing R.A. +82.160 Decl. +23.212 (ibex-sun)
error is R.A. +2.127 Decl. +0.806
for a total 2.120 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.160014,0.910553,0.381167 -w
ibex-sun -t 2012/06:17:21:36:28
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.160014,+0.910553,+0.381167
which is R.A. +80.033 Decl. +22.406
missing R.A. +86.641 Decl. +23.395 (ibex-sun)
error is R.A. +6.608 Decl. +0.989
for a total 6.167 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 0.083982,0.919254,0.384601 -w
ibex-sun -t 2012/06:18:06:28:56
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.083982,+0.919255,+0.384601
which is R.A. +84.780 Decl. +22.619
missing R.A. +86.995 Decl. +23.412 (ibex-sun)
error is R.A. +2.215 Decl. +0.793
for a total 2.188 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.083982,0.919254,0.384601 -w
ibex-sun -t 2012-06-23T01:19:57.199Z
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.083982,+0.919255,+0.384601
which is R.A. +84.780 Decl. +22.619
missing R.A. +92.089 Decl. +23.392 (ibex-sun)
error is R.A. +7.309 Decl. +0.773
for a total 6.771 deg
No -Lo O-mode Commands, but -Lo is doing new TOF2 commands both arcs.
No overlap to orbit 168 commands apparent by manual check or
by reference to http://ibex.unh.edu/cgi-bin/ats.cgi .
Command Approval Checklist attached.
-Hi Neg collimator voltage back to operating at nominal voltage.
At 14:07 -0400 5/27/12, Ibex Mission Operations wrote:
>Guys,
> Here are the planning files and ATS for Orbit# 169.
>Please respond to this email thread with all questions and approvals.
>Approvals and comments are needed before 29 May 12 @1400 UTC
>
>Note the following:
>1. IBEX_Lo TOF2 Changes during ascending payload commands
--
- Mark 210-379-4635
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