[Isocops] IBEX Orbit# 131 ATS - approve.

[Mark Tapley]

All,
	I have looked at the Orbit 131 ATS v001

IBEX_2011_173_o0131a_v001.txt

and I approve.

	No constraint violations.

	The PL commands in the ATS v001 match the STF v001 files

IBEX_2011_181_o0131a_v001.stf

per Ken's script (Thanks, Ken!).

	PL ascending and descending operations make sense with 
respect to 15 Re ascending, Apogee, and 15 Re descending times from 
IBEX_2011_173_o0131a_v001.oef
respectively.

	Moon in -Lo FOV PMT setback commands in the STF match the ATS 
part a; the .oef Moon-in-Lo FOV times are slightly longer and 
concentric with the STF times, as usual.

	No ground station contact times. I assume those must be 
loaded independently.

	No battery cell balancing commands for this odd-numbered orbit.

	Inertial maneuver at the end of orbit 130 (large slew from 
Burn pointing) left us pointing in a safe direction up to the Apogee 
Descending Macros.

	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 -0.178039,0.907641,0.380118 -w 
ibex-sun -t 2011/07:04:13:48:10
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.178039,+0.907641,+0.380118
  which is     R.A. +101.098 Decl. +22.341
  missing      R.A. +103.241 Decl. +22.856 (ibex-sun)
  error is     R.A.   +2.143 Decl.  +0.515
  for a total  2.044 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.178039,0.907641,0.380118 -w 
ibex-sun -t 2011/07:04:15:35:14
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.178039,+0.907641,+0.380118
  which is     R.A. +101.098 Decl. +22.341
  missing      R.A. +103.318 Decl. +22.848 (ibex-sun)
  error is     R.A.   +2.220 Decl.  +0.507
  for a total  2.112 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.178039,0.907641,0.380118 -w 
ibex-sun -t 2011/07:09:00:07:19
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.178039,+0.907641,+0.380118
  which is     R.A. +101.098 Decl. +22.341
  missing      R.A. +107.736 Decl. +22.419 (ibex-sun)
  error is     R.A.   +6.638 Decl.  +0.078
  for a total  6.138 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  -0.252058,0.892895,0.373101 -w 
ibex-sun -t 2011/07:09:10:58:24
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.252058,+0.892895,+0.373101
  which is     R.A. +105.764 Decl. +21.907
  missing      R.A. +108.162 Decl. +22.389 (ibex-sun)
  error is     R.A.   +2.398 Decl.  +0.482
  for a total  2.272 deg
[tapley at ena ~]$ ibex_rotate -o -u  -0.252058,0.892895,0.373101 -w 
ibex-sun -t 2011-07-13T22:24:26.167Z
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.252058,+0.892895,+0.373101
  which is     R.A. +105.764 Decl. +21.907
  missing      R.A. +112.803 Decl. +21.756 (ibex-sun)
  error is     R.A.   +7.039 Decl.  +0.151
  for a total  6.536 deg

	No O-mode this orbit.

	No obvious overlaps to orbit 130. I have not checked 
http://ibex.unh.edu/cgi-bin/ats.cgi, however. Transmitter on/off 
commands will still need to be added and may cause overlaps, which 
should not be a problem.

	Command Approval Checklist attached.



-- 
						- Mark     210-379-4635
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