[Isocops] IBEX Orbit# 174 ATS v001 - approve

Thu Jul 12 20:32:55 EDT 2012

All,
	I have looked at the Orbit 174 ATS v001 (No -Lo commands)

IBEX_2012_207_o0174a_v001.txt

and I approve.

	No constraint violations per .ccvr file:

IBEX_2012_207_o0174a_v001.ccvr

	The PL commands in the ATS v001 match the STF v001

IBEX_2012_207_o0174a_v001.stf

per Ken's script (thanks!) with the exception that the -Lo commands 
have been (properly) commented out.

	PL ascending and descending operations make sense with 
respect to 15 Re ascending, Apogee, and 15 Re descending times from

IBEX_2012_207_o0174a_v001.oef

	Star tracker outage near perigee delays inertial maneuver by ~5 hours.

	Moon in -LO FOV Commands irrelevant, since -Lo is off.

	No Ground station contact times in command load; Ground times listed in

IBEX_Orbit174Contacts_v001.txt

	for 9 contacts, all blind acq's (to save on command space). 
SSR dump commands will be part of o175 ATS per email.

	No battery cell balancing this orbit. Charge before long 
eclipses 3rd and 4th orbits ago. Need to do it next 2 orbits.

	Inertial maneuver at the end of orbit 173 left us pointing in 
a safe direction for ascending and descending macros during first 
half of orbit:

[tapley at ena ~]$ ibex_rotate -o -u -0.506094,0.796308,0.331305 -w 
ibex-sun -t 2012/07:25:20:04:21
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.506094,+0.796308,+0.331305
  which is     R.A. +122.438 Decl. +19.348
  missing      R.A. +125.354 Decl. +19.478 (ibex-sun)
  error is     R.A.   +2.915 Decl.  +0.130
  for a total  2.753 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.506094,0.796308,0.331305 -w 
ibex-sun -t 2012/07:29:10:57:29
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.506094,+0.796308,+0.331305
  which is     R.A. +122.438 Decl. +19.348
  missing      R.A. +128.964 Decl. +18.597 (ibex-sun)
  error is     R.A.   +6.526 Decl.  +0.751
  for a total  6.217 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 -0.569416,0.759109,0.315467 -w 
ibex-sun -t 2012/07:29:12:41:17
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.569416,+0.759109,+0.315467
  which is     R.A. +126.874 Decl. +18.389
  missing      R.A. +129.036 Decl. +18.579 (ibex-sun)
  error is     R.A.   +2.162 Decl.  +0.190
  for a total  2.059 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.569416,0.759109,0.315467 -w 
ibex-sun -t 2012/07:29:14:16:23
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.569416,+0.759109,+0.315467
  which is     R.A. +126.874 Decl. +18.389
  missing      R.A. +129.101 Decl. +18.562 (ibex-sun)
  error is     R.A.   +2.227 Decl.  +0.173
  for a total  2.120 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.569416,0.759109,0.315467 -w 
ibex-sun -t 2012/08:03:00:26:30
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.569416,+0.759109,+0.315467
  which is     R.A. +126.874 Decl. +18.389
  missing      R.A. +133.402 Decl. +17.476 (ibex-sun)
  error is     R.A.   +6.528 Decl.  +0.913
  for a total  6.277 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 -0.631435,0.716424,0.296692 -w 
ibex-sun -t 2012/08:03:13:05:36
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.631435,+0.716424,+0.296692
  which is     R.A. +131.392 Decl. +17.259
  missing      R.A. +133.868 Decl. +17.363 (ibex-sun)
  error is     R.A.   +2.476 Decl.  +0.104
  for a total  2.366 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.631435,0.716424,0.296692 -w 
ibex-sun -t 2012-08-08T02:46:33.109Z
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.631435,+0.716424,+0.296692
  which is     R.A. +131.392 Decl. +17.259
  missing      R.A. +138.269 Decl. +16.062 (ibex-sun)
  error is     R.A.   +6.877 Decl.  +1.197
  for a total  6.696 deg

	No -Lo O-mode (or any) Commands.

	No overlap to orbit 173 commands apparent by manual check; 
http://ibex.unh.edu/cgi-bin/ats.cgi has not ingested 174 yet.

	Command Approval Checklist attached.

	-Hi Neg collimator voltage back to operating at nominal voltage.

At 14:55 -0400 7/12/12, Ibex Mission Operations wrote:
>Here are the planning files for Orbit# 174 ATS
>Please respond to this email thread with comments/approvals.
>All approvals/comments are needed by 14 July 12 @1pm EDT
>
>
>Note the following:
>1. All scheduled contacts for this Orbit will be through Blind_Acq 
>to cut down on the number of commands stored in the FC
>2. Orbit# 175 ATS will contain the commands for the Orbit# 174 SSR_ 
>Dump contacts through APL-18
>IBEX,APL-18,ADD,08/03/12,216,20:30:00,08/03/12,216,21:40:00,,12_re 
>Ascending 320K IBEX Orbit# 174 Payload Recovery SSR Contact
>IBEX,APL-18,ADD,08/03/12,216,23:00:00,08/04/12,217,00:10:00,,14_re 
>Ascending 320K IBEX Orbit# 174 Payload Recovery SSR Contact
>IBEX,APL-18,ADD,08/04/12,217,01:45:00,08/04/12,217,02:55:00,,16_re 
>Ascending 320K IBEX Orbit# 174 Payload Recovery SSR Contact
>3.IBEX_Lo commands have been deleted from the ATS

-- 
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