[Isocops] IBEX Orbit# 171 ATS v002 - approve

Mark Tapley mtapley at swri.edu
Sat Jun 16 11:52:37 EDT 2012


All,
	I have looked at the Orbit 171 ATS v002

IBEX_2012_179_o0171a_v002.txt

and I approve.

	Soft constraint violations per .ccvr file:

IBEX_2012_179_o0171a_v001.ccvr

	as expected. Long eclipse results in low battery SOC.

	The PL commands in the ATS v001 match the STF v001

IBEX_2012_179_o0171a_v002.stf

per Ken's script (thanks!), with one exception, which is the 
sequenced command for dumping the SSR. This is due to the download 
going through APL, which station does not support commanding; 
therefore the SSR playback (and other SC related commands) must be 
pre-loaded.

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

IBEX_2012_179_o0171a_v001.oef

	Star tracker outage on 7/6, no significant effect on command load.

	Eclipse on 6/28, long eclipse flag set 2 hours previous.

	Moon in -LO FOV Commands match .oef time for start and run 5 
hours long for a 30 hour eclipse; this is normal.

	Ground station contact times agree with times in

IBEX_Orbit171Contacts_v001.txt

	for 4 of 5 contacts; the second contact, marked "blind Acq", 
has no corresponding SC commands.

	No battery cell balancing this orbit. Charge before long 
eclipse should accomplish this.

	Inertial maneuver at the end of orbit 170 left us pointing in 
a safe direction for ascending and descending macros during first 
half of orbit:

[tapley at ena ~]$ ibex_rotate -o -u -0.0705,0.920218,0.385004 -w 
ibex-sun -t 2012/06:28:04:14:55
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.070500,+0.920218,+0.385004
  which is     R.A.  +94.381 Decl. +22.644
  missing      R.A.  +97.282 Decl. +23.275 (ibex-sun)
  error is     R.A.   +2.901 Decl.  +0.631
  for a total  2.745 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.0705,0.920218,0.385004 -w 
ibex-sun -t 2012/07:01:18:16:42
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.070500,+0.920218,+0.385004
  which is     R.A.  +94.381 Decl. +22.644
  missing      R.A. +101.094 Decl. +23.016 (ibex-sun)
  error is     R.A.   +6.713 Decl.  +0.372
  for a total  6.198 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 -0.144884,0.912698,0.382087 -w 
ibex-sun -t 2012/07:01:20:00:30
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.144884,+0.912698,+0.382087
  which is     R.A.  +99.020 Decl. +22.463
  missing      R.A. +101.170 Decl. +23.010 (ibex-sun)
  error is     R.A.   +2.150 Decl.  +0.547
  for a total  2.057 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.144884,0.912698,0.382087 -w 
ibex-sun -t 2012/07:01:21:35:36
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.144884,+0.912698,+0.382087
  which is     R.A.  +99.020 Decl. +22.463
  missing      R.A. +101.239 Decl. +23.005 (ibex-sun)
  error is     R.A.   +2.219 Decl.  +0.542
  for a total  2.117 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.144884,0.912698,0.382087 -w 
ibex-sun -t 2012/07:06:06:53:52
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.144884,+0.912698,+0.382087
  which is     R.A.  +99.020 Decl. +22.463
  missing      R.A. +105.704 Decl. +22.646 (ibex-sun)
  error is     R.A.   +6.684 Decl.  +0.183
  for a total  6.175 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 -0.22011,0.89999,0.376257 -w 
ibex-sun -t 2012/07:06:17:37:37
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.220110,+0.899990,+0.376257
  which is     R.A. +103.743 Decl. +22.102
  missing      R.A. +106.123 Decl. +22.615 (ibex-sun)
  error is     R.A.   +2.380 Decl.  +0.513
  for a total  2.260 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.22011,0.89999,0.376257 -w 
ibex-sun -t 2012-07-11T09:00:48.504Z
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.220110,+0.899990,+0.376257
  which is     R.A. +103.743 Decl. +22.102
  missing      R.A. +110.950 Decl. +22.009 (ibex-sun)
  error is     R.A.   +7.207 Decl.  +0.093
  for a total  6.679 deg

	No -Lo O-mode Commands, but -Lo is doing new TOF2 commands both arcs.

	No overlap to orbit 170 commands apparent by manual check; 
http://ibex.unh.edu/cgi-bin/ats.cgi has not yet ingested the 171 load.

	Command Approval Checklist attached.

	-Hi Neg collimator voltage back to operating at nominal voltage.


At 15:17 -0400 6/14/12, Ibex Mission Operations wrote:
>Guys,
>   Here is V002 of the ATS.
>The following change has been made.  The eclipse flag has been set 
>90 minutes before the actual eclipse time
># Orbit# 171 Long Eclipse Flag Set=TRUE
>   @ECT_SetLongEclipseFlag TRUE $TIME=2012/06:28:16:35:00 
>
>
>
>
>
>
>On Thu, Jun 14, 2012 at 2:09 PM, Ibex Mission Operations 
><<mailto:ibexops at gmail.com>ibexops at gmail.com> wrote:
>
>Guys,
>     Here are the planning files for Orbit# 171.  Please respond to 
>this email thread with approvals/comments.
>All approvals/comments are required before 17 june 12 @1600 UTC.

-- 
						- Mark     210-379-4635
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