[Isocops] IBEX Orbit# 163 ATS v001 - xxx

Mark Tapley mtapley at swri.edu
Thu Apr 5 12:23:55 EDT 2012


All,
	I have looked at the Orbit 163 ATS v001

IBEX_2012_107_o0163a_v001.txt

and I approve.

	One soft constraint violation per .ccvr file:

IBEX_2012_107_o0163a_v001.ccvr

	Ryan's plot of battery level shows this is acceptable.

	The PL commands in the ATS v001 match the STF v001

IBEX_2012_106_o0163a_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_107_o0163a_v001.oef

	Star tracker outage from the 23rd to 24th does not affect maneuvers.

	Ground station contact times and rates per

IBEX_Orbit163Contacts_v001.txt

match S/C commands for all 3 contacts.

	No battery cell balancing this orbit; we did last two orbits.

	Inertial maneuver at the end of orbit 162 left us pointing in 
a safe direction for ascending and descending macros during first 
half of orbit:

[tapley at ena ~]$ ibex_rotate -o -u 0.913,0.379204,0.15045 -w ibex-sun 
-t 2012/04:16:15:04:42
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.913000,+0.379204,+0.150450
  which is     R.A.  +22.555 Decl.  +8.653
  missing      R.A.  +24.939 Decl. +10.365 (ibex-sun)
  error is     R.A.   +2.384 Decl.  +1.712
  for a total  2.908 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.913,0.379204,0.15045 -w ibex-sun 
-t 2012/04:20:02:32:33
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.913000,+0.379204,+0.150450
  which is     R.A.  +22.555 Decl.  +8.653
  missing      R.A.  +28.257 Decl. +11.566 (ibex-sun)
  error is     R.A.   +5.702 Decl.  +2.913
  for a total  6.324 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 0.879022,0.442256,0.178132 -w 
ibex-sun -t 2012/04:20:04:21:21
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.879022,+0.442256,+0.178132
  which is     R.A.  +26.708 Decl. +10.261
  missing      R.A.  +28.327 Decl. +11.591 (ibex-sun)
  error is     R.A.   +1.619 Decl.  +1.330
  for a total  2.073 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.879022,0.442256,0.178132 -w 
ibex-sun -t 2012/04:20:05:51:27
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.879022,+0.442256,+0.178132
  which is     R.A.  +26.708 Decl. +10.261
  missing      R.A.  +28.385 Decl. +11.612 (ibex-sun)
  error is     R.A.   +1.677 Decl.  +1.351
  for a total  2.130 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.879022,0.442256,0.178132 -w 
ibex-sun -t 2012/04:24:14:12:33
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.879022,+0.442256,+0.178132
  which is     R.A.  +26.708 Decl. +10.261
  missing      R.A.  +32.343 Decl. +13.050 (ibex-sun)
  error is     R.A.   +5.635 Decl.  +2.789
  for a total  6.183 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 0.840205,0.502474,0.203898 -w 
ibex-sun -t 2012/04:24:21:38:35
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.840205,+0.502474,+0.203898
  which is     R.A.  +30.881 Decl. +11.765
  missing      R.A.  +32.625 Decl. +13.157 (ibex-sun)
  error is     R.A.   +1.744 Decl.  +1.392
  for a total  2.199 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.840205,0.502474,0.203898 -w 
ibex-sun -t 2012-04-29T15:26:50.460Z
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  +0.840205,+0.502474,+0.203898
  which is     R.A.  +30.881 Decl. +11.765
  missing      R.A.  +37.255 Decl. +14.670 (ibex-sun)
  error is     R.A.   +6.374 Decl.  +2.905
  for a total  6.850 deg

	No -Lo O-mode Commands.

	No overlap to orbit 162 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 12:54 -0400 4/4/12, Ibex Mission Operations wrote:
>Guys,
>    Here are the planning files and ATS for Orbit# 163.
>Please respond to this email thread with your comments/approvals. 
>Approvals and comments are due before 6 Apr 12 @1200 UTC

-- 
						- Mark     210-379-4635
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