[Isocops] IBEX Orbit# 188 ATS v002 - approve
Mark Tapley
mtapley at swri.edu
Mon Nov 19 11:06:58 EST 2012
All,
I have looked at the Orbit 188 ATS v002
IBEX_2012_334_o0188a_v002.txt
and I approve.
One constraint violation per .ccvr file:
IBEX_2012_334_o0188a_v001.ccvr
low battery state caused by eclipse, as expected.
The PL commands in the ATS v002 file match those in the STF
IBEX_2012_334_o0188a_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, eclipse, and 15
Re descending times from
IBEX_2012_321_o0188a_v001.oef
Star tracker outage for first 15 hours of first arc ascending
science operations; should not affect ramp-up but may require
de-spinning.
Eclipse operations near perigee, after descending for second arc.
Moon in -LO FOV during second arc; .stf commands are
concentric with .oef times by 3 and 4 hours start and stop for a
31-hour Moon in FOV period.
Ground station contact commands match contact times in Contacts file
IBEX_2012_Orbit188_v002.caf
for all 3 contacts. No contacts during eclipse. Post Eclipse
pass on 12/8 overlaps LongEclipseFlag TRUE operation by 17 minutes,
but begins 28 minutes after eclipse ends.
Battery cell balancing unavoidable due to eclipse operations.
FALSE command is the second command, as appropriate.
Sun-pointing maneuver at the end of orbit 187 left us
pointing in a safe direction for ascending and descending macros
during first half of orbit:
[tapley at ena ~]$ ibex_rotate -o -r +245.558 -d -21.534 -w ibex-sun -t
2012/11:29:08:25:11
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.384891,-0.846836,-0.367053
which is R.A. +245.558 Decl. -21.534
missing R.A. +245.558 Decl. -21.534 (ibex-sun)
error is R.A. +0.000 Decl. +0.000
for a total 0.001 deg
[tapley at ena ~]$ ibex_rotate -o -r +245.558 -d -21.534 -w ibex-sun -t
2012/11:30:00:30:39
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.384891,-0.846836,-0.367053
which is R.A. +245.558 Decl. -21.534
missing R.A. +246.268 Decl. -21.643 (ibex-sun)
error is R.A. +0.710 Decl. +0.109
for a total 0.670 deg
[tapley at ena ~]$ ibex_rotate -o -r +245.558 -d -21.534 -w ibex-sun -t
2012/12:03:13:17:41
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.384891,-0.846836,-0.367053
which is R.A. +245.558 Decl. -21.534
missing R.A. +249.960 Decl. -22.192 (ibex-sun)
error is R.A. +4.402 Decl. +0.658
for a total 4.138 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-0.348593,-0.854883,-0.384263 -w
ibex-sun -t 2012/12:03:15:00:49
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.348593,-0.854883,-0.384263
which is R.A. +247.816 Decl. -22.598
missing R.A. +250.037 Decl. -22.202 (ibex-sun)
error is R.A. +2.221 Decl. +0.396
for a total 2.091 deg
[tapley at ena ~]$ ibex_rotate -o -u-0.348593,-0.854883,-0.384263 -w
ibex-sun -t 2012/12:03:16:35:55
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.348593,-0.854883,-0.384263
which is R.A. +247.816 Decl. -22.598
missing R.A. +250.108 Decl. -22.211 (ibex-sun)
error is R.A. +2.292 Decl. +0.387
for a total 2.154 deg
[tapley at ena ~]$ ibex_rotate -o -u-0.348593,-0.854883,-0.384263 -w
ibex-sun -t 2012/12:08:00:44:47
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.348593,-0.854883,-0.384263
which is R.A. +247.816 Decl. -22.598
missing R.A. +254.945 Decl. -22.720 (ibex-sun)
error is R.A. +7.129 Decl. +0.122
for a total 6.579 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 -0.273567,-0.87735,-0.394231 -w
ibex-sun -t 2012/12:08:10:15:36
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.273567,-0.877350,-0.394231
which is R.A. +252.682 Decl. -23.218
missing R.A. +255.412 Decl. -22.755 (ibex-sun)
error is R.A. +2.730 Decl. +0.463
for a total 2.555 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.273567,-0.87735,-0.394231 -w
ibex-sun -t 2012-12-12T23:04:15.812Z
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.273567,-0.877350,-0.394231
which is R.A. +252.682 Decl. -23.218
missing R.A. +260.269 Decl. -23.169 (ibex-sun)
error is R.A. +7.587 Decl. +0.049
for a total 6.973 deg
No -Lo O-mode Commands.
No overlap to orbit 187 commands apparent by manual check or
by reference to http://ibex.unh.edu/cgi-bin/ats.cgi .
Command Approval Checklist coming soon.
-Hi Neg collimator back to operating at nominal voltage.
At 11:02 -0500 11/17/12, Tim Perry wrote:
>Here are the planning products and ATS for Orbit# 188.
>Approvals/comments will be required before 19 Nov 12 @ 1200 est
>Enjoy
>
>One soft constraint due to the upcoming moderate eclipse
>==========================
>SOFT CONSTRAINT VIOLATIONS
>==========================
>IBX-CLC-015: Battery charge falls below minimum from 2012/12/08 05:17:40 UTC -
> 2012/12/08 08:15:36 UTC. Lowest charge level is 5391.927817
> watt-minutes during this interval.
>
>WE have a Moderate Ecli[pse during this Orbit. The Eclipse flags
>have been set per Ryan Tyler's directions.
># Orbit# 188 Moderate Eclipse Commands
># 2012-12-08T04:23:40.532Z,EclipseEntry,orbit:188,moderate:true,long:false
># 2012-12-08T05:55:31.822Z,EclipseExit,orbit:188,moderate:true,long:false
>
> @ECT_SetLongEclipseFlag TRUE $TIME=2012/12:08:02:48:00
> @ECT_SetLongEclipseFlag FALSE $TIME=2012/12:08:06:40:00
--
- Mark 210-379-4635
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