[Isocops] IBEX Orbit# 188 ATS v002 - approve

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  

-- 
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