[Isocops] IBEX Orbit# 165 ATS v001 - approve

[Mark Tapley]

All,
	I have looked at the Orbit 165 ATS v001

IBEX_2012_125_o0165a_v001.txt

and I approve.

	No constraint violations per .ccvr file:

IBEX_2012_125_o0165a_v001.ccvr

	The PL commands in the ATS v001 match the STF v001

IBEX_2012_125_o0165a_v001.stf

per Ken's script.

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

IBEX_2012_125_o0165a_v001.oef

	Star tracker outage from May 7 to May 10 obscures apogee 
maneuver window; sun-pointing maneuver is done during this outage.
	Another Star tracker outage near perigee ends in time to 
allow a normal sun-pointing maneuver.

	Ground station contact times and rates per

IBEX_Orbit165Contacts_v001.txt

match S/C commands for all 4 contacts.

	Battery cell balancing this orbit; we skipped orbit before 
last. Balancing is more than 90 minutes from anything.

	Sun-pointing maneuver at the end of orbit 164 (to ~ R.A 
+41.301 Dec. +15.969) left us pointing in a safe direction for 
ascending and descending macros during first half of orbit:

[tapley at ena ~]$ ibex_rotate -o -r +41.301 -d +15.969 -w ibex-sun -t 
2012/05:04:16:49:21
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.722262,+0.634545,+0.275117
  which is     R.A.  +41.301 Decl. +15.969
  missing      R.A.  +41.999 Decl. +16.182 (ibex-sun)
  error is     R.A.   +0.698 Decl.  +0.213
  for a total  0.703 deg
[tapley at ena ~]$ ibex_rotate -o -r +41.301 -d +15.969 -w ibex-sun -t 
2012/05:08:14:12:25
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.722262,+0.634545,+0.275117
  which is     R.A.  +41.301 Decl. +15.969
  missing      R.A.  +45.870 Decl. +17.251 (ibex-sun)
  error is     R.A.   +4.569 Decl.  +1.282
  for a total  4.562 deg

	Sun-pointing 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 -r +45.940 -d +17.270 -w ibex-sun -t 
2012/05:08:15:57:41
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.664060,+0.686214,+0.296875
  which is     R.A.  +45.940 Decl. +17.270
  missing      R.A.  +45.940 Decl. +17.270 (ibex-sun)
  error is     R.A.   +0.000 Decl.  +0.000
  for a total  0.000 deg
[tapley at ena ~]$ ibex_rotate -o -r +45.940 -d +17.270 -w ibex-sun -t 
2012/05:08:17:31:19
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.664060,+0.686214,+0.296875
  which is     R.A.  +45.940 Decl. +17.270
  missing      R.A.  +46.003 Decl. +17.287 (ibex-sun)
  error is     R.A.   +0.063 Decl.  +0.017
  for a total  0.063 deg
[tapley at ena ~]$ ibex_rotate -o -r +45.940 -d +17.270 -w ibex-sun -t 
2012/05:12:14:56:55
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.664060,+0.686214,+0.296875
  which is     R.A.  +45.940 Decl. +17.270
  missing      R.A.  +49.687 Decl. +18.285 (ibex-sun)
  error is     R.A.   +3.747 Decl.  +1.015
  for a total  3.710 deg

	Inertial maneuver (finally!) at perigee leaves us pointing in 
a safe direction at maneuver and at following Apogee.

[tapley at ena ~]$ ibex_rotate -o -u 0.638081,0.711427,0.294491 -w 
ibex-sun -t 2012/05:12:22:25:11
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.638081,+0.711427,+0.294491
  which is     R.A.  +48.111 Decl. +17.127
  missing      R.A.  +49.976 Decl. +18.367 (ibex-sun)
  error is     R.A.   +1.865 Decl.  +1.240
  for a total  2.166 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.638081,0.711427,0.294491 -w 
ibex-sun -t 2012-05-17T14:32:58.868Z
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.638081,+0.711427,+0.294491
  which is     R.A.  +48.111 Decl. +17.127
  missing      R.A.  +54.740 Decl. +19.460 (ibex-sun)
  error is     R.A.   +6.629 Decl.  +2.333
  for a total  6.712 deg

	No -Lo O-mode Commands.

	No overlap to orbit 164 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 18:35 -0400 4/21/12, Ibex Mission Operations wrote:
>Guys,
>    Here are the planning files and ATS for Orbit# 165
>Please respond to this email thread with comments/approvals
>Approvals and comments are due before 24 Apr 12 @ 1000 UTC

-- 
						- Mark     210-379-4635
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