[Isocops] IBEX Orbit# 180 ATS v001 - approve - no contact or -Lo commands

[Mark Tapley]

All,
	I have looked at the Orbit 180 ATS v001 (No -Lo commands)

IBEX_2012_262_o0180a_v001.txt

and I approve.

	No constraint violations per .ccvr file:

IBEX_2012_262_o0180a_v001.ccvr

	The PL commands in the ATS v001 match the STF v002

IBEX_2012_262_o0180a_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_262_o0180a_v001.oef

	Star tracker outage near perigee occurs after inertial maneuver.

	Moon in -LO FOV for 16 hours, 2 days after apogee.  (No -Lo 
commands this load).

	No Ground station contact commands, Contacts file shows when 
2 blind acqs (to save command space) will take place.

	Battery cell balancing this orbit; Did this last orbit, can 
skip next orbit. Star tracker outage during balancing is irrelevant; 
no other events within 1.5 hours.

	Inertial maneuver at the end of orbit 179 left us pointing in 
a safe direction for ascending and descending macros during first 
half of orbit:

[tapley at ena ~]$ ibex_rotate -o -u -0.99387,0.105828,0.031969 -w 
ibex-sun -t 2012/09:19:05:39:41
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.993870,+0.105828,+0.031969
  which is     R.A. +173.922 Decl.  +1.832
  missing      R.A. +176.772 Decl.  +1.402 (ibex-sun)
  error is     R.A.   +2.850 Decl.  +0.430
  for a total  2.881 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.99387,0.105828,0.031969 -w 
ibex-sun -t 2012/09:22:18:58:57
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.993870,+0.105828,+0.031969
  which is     R.A. +173.922 Decl.  +1.832
  missing      R.A. +179.923 Decl.  -0.001 (ibex-sun)
  error is     R.A.   +6.001 Decl.  +1.833
  for a total  6.273 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 -0.999338,0.036312,0.002094 -w 
ibex-sun -t 2012/09:22:20:42:45
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.999338,+0.036312,+0.002094
  which is     R.A. +177.919 Decl.  +0.120
  missing      R.A. +179.988 Decl.  -0.030 (ibex-sun)
  error is     R.A.   +2.069 Decl.  +0.150
  for a total  2.074 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.999338,0.036312,0.002094 -w 
ibex-sun -t 2012/09:22:22:17:51
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.999338,+0.036312,+0.002094
  which is     R.A. +177.919 Decl.  +0.120
  missing      R.A. +180.048 Decl.  -0.056 (ibex-sun)
  error is     R.A.   +2.129 Decl.  +0.176
  for a total  2.136 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.999338,0.036312,0.002094 -w 
ibex-sun -t 2012/09:27:07:21:39
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.999338,+0.036312,+0.002094
  which is     R.A. +177.919 Decl.  +0.120
  missing      R.A. +184.081 Decl.  -1.772 (ibex-sun)
  error is     R.A.   +6.162 Decl.  +1.892
  for a total  6.445 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 -0.998937,-0.035564,-0.029317 -w 
ibex-sun -t 2012/09:27:14:23:26
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.998937,-0.035564,-0.029317
  which is     R.A. +182.039 Decl.  -1.680
  missing      R.A. +184.343 Decl.  -1.878 (ibex-sun)
  error is     R.A.   +2.304 Decl.  +0.198
  for a total  2.311 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.998937,-0.035564,-0.029317 -w 
ibex-sun -t 2012-10-02T07:08:07.846Z
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.998937,-0.035564,-0.029317
  which is     R.A. +182.039 Decl.  -1.680
  missing      R.A. +188.484 Decl.  -3.696 (ibex-sun)
  error is     R.A.   +6.445 Decl.  +2.016
  for a total  6.746 deg

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

	No overlap to orbit 179 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 11:33 -0400 9/5/12, Ibex Mission Operations wrote:
>Guys,
>     Here are the planning files and ATS for Orbit# 180
>All comments/approvals are required by 7 Sept 12 @1800 UTC
>
>Please note the following:
>1. This ATS contains NO IBEX_Lo Commands.  IBEX_Lo commands for 
>Orbit# 180 will be uploaded during Orbit# 178 Apogee (14 Sept 12 
>@1200 UTC)
>2. All contact commands have been omitted to conserved time tagged 
>command space onboard the spacecraft
>Contacts will be treated as Blind_acq contacts until we have 
>successfully recovery IBEX_Lo

-- 
						- Mark     210-379-4635
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