[Isocops] IBEX Orbit# 173 ATS v002 - approve

[Mark Tapley]

All,
	I have looked at the Orbit 173 ATS v002 (No_Lo)

IBEX_2012_197_o0173a_No_Lo_v002.txt

and I approve.

	No constraint violations per .ccvr file:

IBEX_2012_197_o0173a_v001.ccvr

	The PL commands in the ATS v002 match the STF v001

IBEX_2012_197_o0173a_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_197_o0173a_v001.oef

	Star tracker outage near perigee delays inertial maneuver by ~4 hours.

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

	Ground station contact times agree with times in

IBEX_2011_Orbit173_v003.caf

	for all 3 contacts.

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

	Inertial maneuver at the end of orbit 172 left us pointing in 
a safe direction for ascending and descending macros during first 
half of orbit:

[tapley at ena ~]$ ibex_rotate -o -u -0.365876,0.858865,0.358449 -w 
ibex-sun -t 2012/07:16:11:00:42
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. +116.000 Decl. +21.294 (ibex-sun)
  error is     R.A.   +2.926 Decl.  +0.289
  for a total  2.744 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.365876,0.858865,0.358449 -w 
ibex-sun -t 2012/07:20:04:28:08
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. +119.819 Decl. +20.581 (ibex-sun)
  error is     R.A.   +6.745 Decl.  +0.424
  for a total  6.320 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 -0.436365,0.830412,0.346412 -w 
ibex-sun -t 2012/07:20:06:11:56
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.436365,+0.830412,+0.346412
  which is     R.A. +117.721 Decl. +20.268
  missing      R.A. +119.892 Decl. +20.567 (ibex-sun)
  error is     R.A.   +2.171 Decl.  +0.299
  for a total  2.057 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.436365,0.830412,0.346412 -w 
ibex-sun -t 2012/07:20:07:47:02
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.436365,+0.830412,+0.346412
  which is     R.A. +117.721 Decl. +20.268
  missing      R.A. +119.960 Decl. +20.554 (ibex-sun)
  error is     R.A.   +2.239 Decl.  +0.286
  for a total  2.117 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.436365,0.830412,0.346412 -w 
ibex-sun -t 2012/07:24:20:16:50
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.436365,+0.830412,+0.346412
  which is     R.A. +117.721 Decl. +20.268
  missing      R.A. +124.441 Decl. +19.666 (ibex-sun)
  error is     R.A.   +6.720 Decl.  +0.602
  for a total  6.344 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 -0.506094,0.796308,0.331305 -w 
ibex-sun -t 2012/07:25:08:19:01
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. +124.894 Decl. +19.580 (ibex-sun)
  error is     R.A.   +2.456 Decl.  +0.232
  for a total  2.327 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.506094,0.796308,0.331305 -w 
ibex-sun -t 2012-07-29T22:31:23.680Z
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. +129.442 Decl. +18.477 (ibex-sun)
  error is     R.A.   +7.004 Decl.  +0.871
  for a total  6.683 deg

	No -Lo O-mode Commands.

	No overlap to orbit 172 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 13:16 -0400 7/3/12, Tim Perry wrote:
>All,
>     Attached are the planning files and ATS  for Orbit# 173.  I have 
>attached 2 ATS files for this upcoming orbit. The version 1 is the 
>normal ATS and the version 2 "No_Lo" have the Lo commands commented 
>out.  
>All approvals/comments are required before 05 July 12 @1800 UTC
>Please respond to this email thread
>
>   Thanks
>        Tim

-- 
						- Mark     210-379-4635
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