[Isocops] IBEX Orbit# 193 ATS v001 - approve
Mark Tapley
mtapley at swri.edu
Mon Dec 31 14:07:46 EST 2012
All,
I have looked at the Orbit 193 ATS v001
IBEX_2013_013_o0193a_v001.txt
and I approve.
No constraint violation per .ccvr file:
IBEX_2013_013_o0193a_v001.ccvr
The PL commands in the ATS v001 file match those in the STF
IBEX_2013_013_o0193a_v001.stf
according to Ken's script (thanks!).
PL ascending and descending operations make sense with
respect to each other and to 15 Re ascending, Apogee, and 15 Re
descending times from
IBEX_2013_013_o0193a_v001.oef
Star tracker outage for 2 days and 17 hours of first arc
ascending science operations; may require de-spinning.
Moon in -LO FOV during ascending arc; ATS commands are 0.5
hours late start and 1.5 hours early end compared to .oef start and
end times for a 17 hour Moon in FOV period, which is about normal.
Ground station contact commands match contact times and bit
rates in Contacts file
IBEX_2011_Orbit193_v001.caf
for all 3 contacts. (Note .caf file name is odd, saying 2011
vs. 2013, but events match up.)
No Battery cell balancing this orbit, as is appropriate.
Should do next orbit.
Inertial maneuver at the end of orbit 192 left us pointing in
extra safe directions for ascending and descending macros during
first half of orbit:
[tapley at ena ~]$ ibex_rotate -o -u 0.435422,-0.821918,-0.367232 -w
ibex-sun -t 2013/01:13:21:15:04
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.435422,-0.821918,-0.367232
which is R.A. +297.913 Decl. -21.545
missing R.A. +295.583 Decl. -21.354 (ibex-sun)
error is R.A. +2.330 Decl. +0.191
for a total 2.177 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.435422,-0.821918,-0.367232 -w
ibex-sun -t 2013/01:17:10:48:45
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.435422,-0.821918,-0.367232
which is R.A. +297.913 Decl. -21.545
missing R.A. +299.334 Decl. -20.736 (ibex-sun)
error is R.A. +1.421 Decl. +0.809
for a total 1.552 deg
Inertial maneuver at apogee leaves us pointing in an extra
safe direction at maneuver and at following Ascending and Descending
Macros.
[tapley at ena ~]$ ibex_rotate -o -u 0.497931,-0.791589,-0.354193 -w
ibex-sun -t 2013/01:17:12:31:53
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.497931,-0.791589,-0.354193
which is R.A. +302.171 Decl. -20.744
missing R.A. +299.409 Decl. -20.723 (ibex-sun)
error is R.A. +2.762 Decl. +0.021
for a total 2.583 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.497931,-0.791589,-0.354193 -w
ibex-sun -t 2013/01:17:14:06:59
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.497931,-0.791589,-0.354193
which is R.A. +302.171 Decl. -20.744
missing R.A. +299.478 Decl. -20.710 (ibex-sun)
error is R.A. +2.693 Decl. +0.034
for a total 2.519 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.497931,-0.791589,-0.354193 -w
ibex-sun -t 2013/01:21:23:43:53
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.497931,-0.791589,-0.354193
which is R.A. +302.171 Decl. -20.744
missing R.A. +304.151 Decl. -19.740 (ibex-sun)
error is R.A. +1.980 Decl. +1.004
for a total 2.112 deg
Inertial maneuver at perigee leaves us pointing in an extra
safe direction at maneuver and at following Apogee.
[tapley at ena ~]$ ibex_rotate -o -u 0.574771,-0.74676,-0.334646 -w
ibex-sun -t 2013/01:22:07:10:25
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.574771,-0.746760,-0.334646
which is R.A. +307.585 Decl. -19.551
missing R.A. +304.502 Decl. -19.656 (ibex-sun)
error is R.A. +3.083 Decl. +0.105
for a total 2.906 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.574771,-0.74676,-0.334646 -w
ibex-sun -t 2013-01-27T03:25:27.367Z
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.574771,-0.746760,-0.334646
which is R.A. +307.585 Decl. -19.551
missing R.A. +309.544 Decl. -18.520 (ibex-sun)
error is R.A. +1.959 Decl. +1.031
for a total 2.119 deg
No -Lo O-mode Commands.
No overlap to orbit 192 commands apparent by manual check;
http://ibex.unh.edu/cgi-bin/ats.cgi has not yet ingested the o193
load.
Command Approval Checklist attached.
-Hi Neg collimator back to operating at nominal voltage.
Pointing is in -Lo ISM mode operations during January, so sun
angles are lower and will continue to be lower through January.
Happy New Year!
At 2:43 -0500 12/31/12, IBEX wrote:
>All,
> Attached are the products for Orbit 193. Attached are the ATS files for
>Orbit 192. All questions and approvals need to be in by noon Jan 3, 2013.
> Thanks
> Tim
--
- Mark 210-379-4635
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