[Isocops] IBEX Orbit# 178 ATS v001 - approve - no contact or -Lo commands

Mon Aug 20 13:22:15 EDT 2012

...now with the checklist as well.

All,
	I have looked at the Orbit 178 ATS v001 (No -Lo commands)

IBEX_2012_244_o0178a_v001.txt

and I approve.

	No constraint violations per .ccvr file:

IBEX_2012_244_o0178a_v001.ccvr

	The PL commands in the ATS v001 match the STF v002

IBEX_2012_244_o0178a_v002.stf

per Ken's script (thanks!).

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

IBEX_2012_244_o0178a_v001.oef

	Star tracker outage near perigee does not affect inertial maneuver.

	Moon in -LO FOV;  No -Lo commands this load.

	No Ground station contact commands, and no Contacts file.

	No Battery cell balancing this orbit; Did this O177, need to 
do this next orbit.

	Sun-pointing maneuver at the end of orbit 177 left us 
pointing in a safe direction for ascending and descending macros 
during first half of orbit:

[tapley at ena ~]$ ibex_rotate -o -r +159.583 -d +8.602 -w ibex-sun -t 
2012/08:31:01:44:55
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.926636,+0.344926,+0.149570
  which is     R.A. +159.583 Decl.  +8.602
  missing      R.A. +159.583 Decl.  +8.602 (ibex-sun)
  error is     R.A.   +0.000 Decl.  +0.000
  for a total  0.001 deg
[tapley at ena ~]$ ibex_rotate -o -r +159.583 -d +8.602 -w ibex-sun -t 
2012/08:31:18:28:05
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.926636,+0.344926,+0.149570
  which is     R.A. +159.583 Decl.  +8.602
  missing      R.A. +160.158 Decl.  +8.375 (ibex-sun)
  error is     R.A.   +0.575 Decl.  +0.227
  for a total  0.612 deg
[tapley at ena ~]$ ibex_rotate -o -r +159.583 -d +8.602 -w ibex-sun -t 
2012/09:04:08:34:36
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.926636,+0.344926,+0.149570
  which is     R.A. +159.583 Decl.  +8.602
  missing      R.A. +163.395 Decl.  +7.029 (ibex-sun)
  error is     R.A.   +3.812 Decl.  +1.573
  for a total  4.091 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 -0.940397,0.316789,0.123688 -w 
ibex-sun -t 2012/09:04:10:21:05
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.940397,+0.316789,+0.123688
  which is     R.A. +161.383 Decl.  +7.105
  missing      R.A. +163.462 Decl.  +7.001 (ibex-sun)
  error is     R.A.   +2.079 Decl.  +0.104
  for a total  2.066 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.940397,0.316789,0.123688 -w 
ibex-sun -t 2012/09:04:11:53:30
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.940397,+0.316789,+0.123688
  which is     R.A. +161.383 Decl.  +7.105
  missing      R.A. +163.521 Decl.  +6.976 (ibex-sun)
  error is     R.A.   +2.138 Decl.  +0.129
  for a total  2.126 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.940397,0.316789,0.123688 -w 
ibex-sun -t 2012/09:08:22:14:54
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.940397,+0.316789,+0.123688
  which is     R.A. +161.383 Decl.  +7.105
  missing      R.A. +167.584 Decl.  +5.319 (ibex-sun)
  error is     R.A.   +6.201 Decl.  +1.786
  for a total  6.418 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 -0.964215,0.248035,0.093639 -w 
ibex-sun -t 2012/09:09:05:21:09
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.964215,+0.248035,+0.093639
  which is     R.A. +165.574 Decl.  +5.373
  missing      R.A. +167.842 Decl.  +5.219 (ibex-sun)
  error is     R.A.   +2.268 Decl.  +0.154
  for a total  2.264 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.964215,0.248035,0.093639 -w 
ibex-sun -t 2012-09-14T01:47:42.091Z
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.964215,+0.248035,+0.093639
  which is     R.A. +165.574 Decl.  +5.373
  missing      R.A. +172.124 Decl.  +3.363 (ibex-sun)
  error is     R.A.   +6.550 Decl.  +2.010
  for a total  6.833 deg

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

	No overlap to orbit 177 commands apparent by manual check or 
by reference to http://ibex.unh.edu/cgi-bin/ats.cgi although -Lo star 
sensor commands for o177 are intermingled with normal commands for 
this orbit.

	Command Approval Checklist attached.

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

At 10:24 -0400 8/17/12, Ibex Mission Operations wrote:
>Guys,
>     Here are the planning files and ATS for Orbit# 178. 
>All approvals/comments are required before 20 Aug 12 @1400 UTC
>Please note the following:
>1. Orbit# 178 OEF
>- the OEF from Orbit# 176 was used to generate the file because of 
>the sun maneuver at PERIGEE of Orbit# 177
>
>2. IBEX_Lo and Moon in FOV commands have been deleted within the STF 
>(Ken Fairchild)
>- IBEX_Lo Recovery starts in Orbit# 177
>- IBEX_Lo Star Sensor ATS  for Orbit# 178 will be generated upon recovery
>
>3. Contact Commands
>- all contacts will remain as Blind_Acqs until we have recovered 
>IBEX_Lo to optimize stored command space within the FC

-- 
						- Mark     210-379-4635
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Large Asteroids headed toward planets
inhabited by beings that don't have
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				Think of it as Evolution in Fast-Forward.
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