[Isocops] IBEX Orbit# 136a ATS v001 - approve.

Tue Aug 2 19:03:01 EDT 2011

All,
	I have looked at the Orbit 136a ATS v001

IBEX_2011_226_o0136a_v001.txt

and I approve.

	No constraint violations.

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

IBEX_2011_225_o0136a_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_226_o0136a_v001.oef

	Moon in -Lo FOV PMT setback commands are a little strange 
again. The .oef says we need them

2011-08-16T10:28:51.710Z  -  2011-08-17T05:07:31.653Z

	The STF has them

2011/08:17:02:04:55       - 2011/08:17:20:51:31

	which periods overlap, but are not concentric or identical. 
In any case, I think the danger to -Lo is small from having Moon in 
FOV.

	No ground station contact times sent; commands in ATS look OK 
assuming the ground contact times match.

	Battery cell balancing Cycle looks OK, > 1 hour from anything 
(in a star tracker outage, but that is not relevant).

	Sun Acq maneuver at the end of orbit 135 left us pointing in 
a safe direction for ascending and descending macros during first 
half of orbit (even safer than the usual inertial maneuver):

[tapley at ena ~]$ ibex_rotate -o -u 1,0,0 -w ibex-sun -t 2011/08:13:23:46:21
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +1.000000,+0.000000,+0.000000
  which is     R.A.   +0.000 Decl.  +0.000
  missing      R.A. +143.132 Decl. +14.572 (ibex-sun)
  error is     R.A. +143.132 Decl. +14.572
  for a total  140.740 deg
[tapley at ena ~]$ ibex_rotate -o -r 143.132 -d 14.572 -w ibex-sun -t 
2011/08:14:17:02:32
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.774285,+0.580674,+0.251596
  which is     R.A. +143.132 Decl. +14.572
  missing      R.A. +143.764 Decl. +14.385 (ibex-sun)
  error is     R.A.   +0.632 Decl.  +0.187
  for a total  0.639 deg
[tapley at ena ~]$ ibex_rotate -o -r 143.132 -d 14.572 -w ibex-sun -t 
2011/08:18:05:23:24
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.774285,+0.580674,+0.251596
  which is     R.A. +143.132 Decl. +14.572
  missing      R.A. +147.075 Decl. +13.232 (ibex-sun)
  error is     R.A.   +3.943 Decl.  +1.340
  for a total  4.055 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 -0.797775,0.557986,0.228487 -w 
ibex-sun -t 2011/08:18:06:55:12
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.797775,+0.557986,+0.228487
  which is     R.A. +145.030 Decl. +13.208
  missing      R.A. +147.135 Decl. +13.211 (ibex-sun)
  error is     R.A.   +2.105 Decl.  +0.003
  for a total  2.049 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.797775,0.557986,0.228487 -w 
ibex-sun -t 2011/08:18:08:42:18
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.797775,+0.557986,+0.228487
  which is     R.A. +145.030 Decl. +13.208
  missing      R.A. +147.205 Decl. +13.186 (ibex-sun)
  error is     R.A.   +2.175 Decl.  +0.022
  for a total  2.118 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.797775,0.557986,0.228487 -w 
ibex-sun -t 2011/08:22:17:17:03
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.797775,+0.557986,+0.228487
  which is     R.A. +145.030 Decl. +13.208
  missing      R.A. +151.269 Decl. +11.755 (ibex-sun)
  error is     R.A.   +6.239 Decl.  +1.453
  for a total  6.262 deg

	Maneuver at perigee leaves us pointing in a safe direction at 
maneuver and at following Apogee.

[tapley at ena ~]$ ibex_rotate -o -u -0.841601,0.500501,0.202992 -w 
ibex-sun -t 2011/08:22:23:26:38
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.841601,+0.500501,+0.202992
  which is     R.A. +149.260 Decl. +11.712
  missing      R.A. +151.496 Decl. +11.682 (ibex-sun)
  error is     R.A.   +2.236 Decl.  +0.030
  for a total  2.190 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.841601,0.500501,0.202992 -w 
ibex-sun -t 2011-08-27T19:06:09.348Z
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.841601,+0.500501,+0.202992
  which is     R.A. +149.260 Decl. +11.712
  missing      R.A. +155.888 Decl. +10.011 (ibex-sun)
  error is     R.A.   +6.628 Decl.  +1.701
  for a total  6.727 deg

	No O-mode this orbit.

	No overlaps to orbit 135, either manual check or per 
http://ibex.unh.edu/cgi-bin/ats.cgi.

	Command Approval Checklist attached.

At 7:33 -0400 8/1/11, Ibex Mission Operations wrote:
>Guys,
>     Here is the ATS for Orbit#136 along with the planning files. 
>The SFTP server is still down and I will place the files there as
>soon as I can.
>  I will also email my approval check list later this morning

-- 
						- Mark     210-379-4635
-----------------------------------------------------------------------
Large Asteroids headed toward planets
inhabited by beings that don't have
technology adequate to stop them:

				Think of it as Evolution in Fast-Forward.
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