[Isocops] IBEX Orbit# 172 ATS v001 - approve, conditional on -Lo status
Reno, Michelle
mreno at swri.edu
Mon Jun 25 15:19:24 EDT 2012
Hi Tim, Sheral,
Please create the following :
1) Version 2 with all Lo commands commented out.
2) A Lo_Only version to be uploaded after Lo is recovered.
I have attached examples.
Chelle
-----Original Message-----
From: isocops-bounces at lists.sr.unh.edu
[mailto:isocops-bounces at lists.sr.unh.edu] On Behalf Of Mark Tapley
Sent: Monday, June 25, 2012 11:07 AM
To: Ibex Mission Operations; Bret Hautamaki; IBEX-FDG; IBEXOPS/ORB; ISOC
at New Hampshire; John Cavallo; Mark Tapley; Robert Lockwood; Roland
Vanderspek; Ryan Tyler; Sheral Wesley; Thomas Regiec; Tim Perry; Walker
Cross
Subject: [Isocops] IBEX Orbit# 172 ATS v001 - approve,conditional on -Lo
status
All,
I have looked at the Orbit 172 ATS v001
IBEX_2012_188_o0172a_v001.txt
and I approve, contingent on -Lo being returned to normal operations
prior to the upload of this command load.
No constraint violations per .ccvr file:
IBEX_2012_188_o0172a_v001.ccvr
The PL commands in the ATS v001 match the STF v001
IBEX_2012_188_o0172a_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_188_o0172a_v001.oef
Star tracker outage on 7/15 delays perigee maneuver, but still
within maneuver window.
Moon in -LO FOV Commands lag .oef times for start and stop by
4-5 hours for a ~14 hour eclipse; this is normal.
Ground station contact times agree with times in
IBEX_Orbit172Contacts_v001.txt
for all 3 contacts.
No battery cell balancing this orbit. Charge before long
eclipses last 2 orbits.
Inertial maneuver at the end of orbit 171 left us pointing in a
safe direction for ascending and descending macros during first half of
orbit:
[tapley at ena ~]$ ibex_rotate -o -u -0.22011,0.89999,0.376257 -w ibex-sun
-t 2012/07:07:06:43:17
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.220110,+0.899990,+0.376257
which is R.A. +103.743 Decl. +22.102
missing R.A. +106.667 Decl. +22.559 (ibex-sun)
error is R.A. +2.924 Decl. +0.457
for a total 2.743 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.22011,0.89999,0.376257 -w ibex-sun
-t 2012/07:10:21:27:03
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.220110,+0.899990,+0.376257
which is R.A. +103.743 Decl. +22.102
missing R.A. +110.451 Decl. +22.077 (ibex-sun)
error is R.A. +6.708 Decl. +0.025
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 -0.292728,0.882182,0.368871 -w
ibex-sun -t 2012/07:10:23:10:51
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.292728,+0.882182,+0.368871
which is R.A. +108.357 Decl. +21.646
missing R.A. +110.526 Decl. +22.067 (ibex-sun)
error is R.A. +2.169 Decl. +0.421
for a total 2.057 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.292728,0.882182,0.368871 -w
ibex-sun -t 2012/07:11:00:45:57
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.292728,+0.882182,+0.368871
which is R.A. +108.357 Decl. +21.646
missing R.A. +110.594 Decl. +22.057 (ibex-sun)
error is R.A. +2.237 Decl. +0.411
for a total 2.117 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.292728,0.882182,0.368871 -w
ibex-sun -t 2012/07:15:11:14:18
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.292728,+0.882182,+0.368871
which is R.A. +108.357 Decl. +21.646
missing R.A. +115.063 Decl. +21.433 (ibex-sun)
error is R.A. +6.706 Decl. +0.213
for a total 6.240 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 -0.365876,0.858865,0.358449 -w
ibex-sun -t 2012/07:15:22:38:52
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.365876,+0.858865,+0.358449
which is R.A. +113.074 Decl. +21.005
missing R.A. +115.501 Decl. +21.375 (ibex-sun)
error is R.A. +2.427 Decl. +0.370
for a total 2.293 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.365876,0.858865,0.358449 -w
ibex-sun -t 2012-07-20T16:02:46.053Z
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.365876,+0.858865,+0.358449
which is R.A. +113.074 Decl. +21.005
missing R.A. +120.309 Decl. +20.486 (ibex-sun)
error is R.A. +7.235 Decl. +0.519
for a total 6.785 deg
No -Lo O-mode Commands, but -Lo is doing new TOF2 commands both
arcs.
No overlap to orbit 171 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 17:01 -0400 6/23/12, Ibex Mission Operations wrote:
>Guys,
> Here are the planning files and ATS for Orbit# 172.
>All approvals/comments are required before 26 June 12 @1200 UTC Please
>respond to this email thread
--
- Mark 210-379-4635
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