[Isocops] IBEX Orbit# 184 ATS v001 (Hi/CEU) and v001 (Lo) - approve

Thu Oct 11 19:01:22 EDT 2012

All,
	I have looked at the Orbit 184 ATS v001 (No -Lo commands)

IBEX_2012_298_o0184a_v001.txt

	and the corresponding -Lo command ATS v001

IBEX_2012_298_o0184a_Lo_Commands_v001.txt

and I approve.

	No constraint violations per .ccvr file:

IBEX_2012_298_o0184a_v001.ccvr

	-Lo-only load .ccvr

IBEX_2012_298_o0184a_Lo_Commands_v001.ccvr

	has the expected violations due to lack of -Hi and CEU 
commands in the -Lo alone load.

	The PL commands in the ATS v001 match the STF

IBEX_2012_298_o0184a_v002.stf

	and the -Lo commands in the -Lo ATS v001 match the -Lo STF v001

IBEX_2012_298_o0184a_Lo_Commands_v001.stf

per Ken's script (thanks!).

	PL ascending and descending operations (-Hi/CEU and -Lo) make 
sense with respect each other and to 15 Re ascending, Apogee, and 15 
Re descending times from

IBEX_2012_298_o0184a_v001.oef

	Star tracker outage during ascending arc science, no conflict 
except may need despinning. Star tracker outage during perigee starts 
8 hours after completion of inertial maneuver, no conflict.

	No Moon in -LO FOV.

	No ground station contact commands in either load, to save 
command space. Contacts file shows contacts (delete and add) at 
reasonable times for ADD contacts, not during maneuvers.

	No battery cell balancing this orbit. Did last 2 orbits, 
should skip this orbit and return to do it next orbit.

	Inertial maneuver at the end of orbit 183 left us pointing in 
a safe direction for ascending and descending macros during first 
half of orbit:

[tapley at ena ~]$ ibex_rotate -o -u -0.872179,-0.443611,-0.206187 -w 
ibex-sun -t 2012/10:25:10:00:21
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.872179,-0.443611,-0.206187
  which is     R.A. +206.959 Decl. -11.899
  missing      R.A. +210.019 Decl. -12.234 (ibex-sun)
  error is     R.A.   +3.060 Decl.  +0.335
  for a total  3.011 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.872179,-0.443611,-0.206187 -w 
ibex-sun -t 2012/10:28:20:50:31
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.872179,-0.443611,-0.206187
  which is     R.A. +206.959 Decl. -11.899
  missing      R.A. +213.248 Decl. -13.404 (ibex-sun)
  error is     R.A.   +6.289 Decl.  +1.505
  for a total  6.318 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 -0.832247,-0.50355,-0.231952 -w 
ibex-sun -t 2012/10:28:22:34:19
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.832247,-0.503550,-0.231952
  which is     R.A. +211.176 Decl. -13.412
  missing      R.A. +213.318 Decl. -13.428 (ibex-sun)
  error is     R.A.   +2.142 Decl.  +0.016
  for a total  2.083 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.832247,-0.50355,-0.231952 -w 
ibex-sun -t 2012/10:29:00:09:25
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.832247,-0.503550,-0.231952
  which is     R.A. +211.176 Decl. -13.412
  missing      R.A. +213.382 Decl. -13.450 (ibex-sun)
  error is     R.A.   +2.206 Decl.  +0.038
  for a total  2.146 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.832247,-0.50355,-0.231952 -w 
ibex-sun -t 2012/11:02:07:27:07
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.832247,-0.503550,-0.231952
  which is     R.A. +211.176 Decl. -13.412
  missing      R.A. +217.705 Decl. -14.854 (ibex-sun)
  error is     R.A.   +6.529 Decl.  +1.441
  for a total  6.493 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 -0.786493,-0.561456,-0.25728 -w 
ibex-sun -t 2012/11:02:15:05:40
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.786494,-0.561457,-0.257280
  which is     R.A. +215.522 Decl. -14.909
  missing      R.A. +218.031 Decl. -14.950 (ibex-sun)
  error is     R.A.   +2.509 Decl.  +0.041
  for a total  2.425 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.786493,-0.561456,-0.25728 -w 
ibex-sun -t 2012-11-07T07:51:09.024Z
Quaternion    +0.000000,+0.000000,+0.000000,+0.000000
  points axis  +1.000000,+0.000000,+0.000000
  towards ECI  -0.786494,-0.561457,-0.257280
  which is     R.A. +215.522 Decl. -14.909
  missing      R.A. +222.548 Decl. -16.374 (ibex-sun)
  error is     R.A.   +7.026 Decl.  +1.465
  for a total  6.922 deg

	No -Lo O-mode Commands.

	No overlap to orbit 183 commands apparent by manual check; 
http://ibex.unh.edu/cgi-bin/ats.cgi has a lot of commands interleaved 
among various loads and is not usable for confirming no-overlap right 
now.

	Command Approval Checklists attached.

	Approval for alternate command loads coming in separate email.

	-Hi Neg collimator back to operating at nominal voltage.

At 11:54 -0400 10/3/12, Ibex Mission Operations wrote:
>Guys,
>    Here are the planning files and ATS  for Orbit# 183.
>Please respond to this email thread with comments/approvals.
>All approvals and comments are required before 5 Oct 12 @1800 UTC
>
>1. No contact commands within the ATS.  All contacts are blind_acqs
>2. Battery Balancing during PERIGEE
>3. Command Violations

At 12:17 -0400 10/3/12, Ibex Mission Operations wrote:
>Guys,
>Here are the planning files and ATS for Orbit# 183 IBEX_Lo Commands
>All approvals/commands are required before 19 Oct 12 @1800 UTC
>
>Please note the following:
>1. All Soft Constraint Violations are generated because only IBEX_Lo 
>commands were used to generate the ATS
>2. Orbit# 183 ATS contains BUS, IBEX_Hi and Inertial Maneuver Commands
>3. Command Load Violations

-- 
						- 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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