[Isocops] IBEX Orbit# 348 ATS Approval ( 23 Nov - 3 Dec ) - v001 approval
Ken Fairchild
fair-play at comcast.net
Mon Nov 14 13:59:00 EST 2016
All,
I have looked at the orbit 348 ATS,
IBEX_2016_328_o0348a_v001.scr,
and I approve.
The only constraint violations in
IBEX_2016_328_o0348a_v001.ccvr
are because we removed the
ACT_SetSpinPulseProtectEnable Enable
commands (2); the violations are expected.
The PL commands in the v001 ATS match those in the v002 STF,
IBEX_2016_328_o0348a_v002.stf.
Ascending and descending command sequences are consistent with each other and 15 Re ascending, the apogee maneuver time and 15 Re descending as determined from the OEF,
IBEX_2016_319_o0348a_v001.oef,
and as verified with ibex_orbit.
There are no star tracker outages.
There are no moon in Lo FOV sessions.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file,
IBEX_Orbit348_Contacts.txt,
for all contacts (3).
No battery cell balancing this orbit; we'll do it again in the next orbit.
The inertial maneuver at perigee of orbit 347 left us pointing in safe directions for the orbit 348 arc A ascending and descending sequences:
ibex_rotate -o -u -0.514158,-0.783058,-0.349946 -w ibex-sun -t 2016/11:24:03:49:46
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.514158,-0.783058,-0.349946
which is R.A. +236.711 Decl. -20.484
missing R.A. +240.005 Decl. -20.593 (ibex-sun)
error is R.A. +3.294 Decl. +0.109
for a total 3.087 deg
ibex_rotate -o -u -0.514158,-0.783058,-0.349946 -w ibex-sun -t 2016/11:27:19:03:35
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.514158,-0.783058,-0.349946
which is R.A. +236.711 Decl. -20.484
missing R.A. +243.757 Decl. -21.282 (ibex-sun)
error is R.A. +7.046 Decl. +0.798
for a total 6.631 deg
The inertial precession maneuver at apogee leaves us pointing in safe directions at the time of the maneuver and for arc B ascending and descending sequences:
ibex_rotate -o -u -0.441817,-0.818934,-0.366258 -w ibex-sun -t 2016/11:27:20:46:43
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.441817,-0.818934,-0.366258
which is R.A. +241.653 Decl. -21.485
missing R.A. +243.833 Decl. -21.294 (ibex-sun)
error is R.A. +2.180 Decl. +0.191
for a total 2.039 deg
ibex_rotate -o -u -0.441817,-0.818934,-0.366258 -w ibex-sun -t 2016/11:27:22:21:49
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.441817,-0.818934,-0.366258
which is R.A. +241.653 Decl. -21.485
missing R.A. +243.902 Decl. -21.305 (ibex-sun)
error is R.A. +2.249 Decl. +0.180
for a total 2.102 deg
ibex_rotate -o -u -0.441817,-0.818934,-0.366258 -w ibex-sun -t 2016/12:02:08:25:58
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.441817,-0.818934,-0.366258
which is R.A. +241.653 Decl. -21.485
missing R.A. +248.728 Decl. -21.978 (ibex-sun)
error is R.A. +7.075 Decl. +0.493
for a total 6.590 deg
The inertial maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 349 apogee:
ibex_rotate -o -u -0.369238,-0.848785,-0.378455 -w ibex-sun -t 2016/12:02:10:44:32
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.369238,-0.848785,-0.378455
which is R.A. +246.490 Decl. -22.238
missing R.A. +248.840 Decl. -21.994 (ibex-sun)
error is R.A. +2.350 Decl. +0.244
for a total 2.191 deg
ibex_rotate -o -u -0.369238,-0.848785,-0.378455 -w ibex-sun -t 2016-12-07T10:22:00.969Z
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.369238,-0.848785,-0.378455
which is R.A. +246.490 Decl. -22.238
missing R.A. +254.199 Decl. -22.672 (ibex-sun)
error is R.A. +7.709 Decl. +0.434
for a total 7.137 deg
No Lo O-mode.
There is no overlap with orbit 347 commands by manual inspection or by checking at
http://ibex.unh.edu/cgi-bin/ats.cgi .
Command Approval Checklist is attached.
Ken
----- Original Message -----
From: "Perry.Tim" <tim.perry at orbitalatk.com>
To: "David Heirtzler" <dfh at cisunix.unh.edu>, "IBEX-FDG" <IBEX.fdg at applieddefense.com>, "IBEXOPS" <IBEXOPS at gmail.com>, "ISOC at New Hampshire" <isocops at lists.sr.unh.edu>, "Ken Fairchild" <fair-play at comcast.net>, "Lockwood.Robert" <robert.lockwood at orbitalatk.com>, "Nigel Angold" <nigel.angold at nasa.gov>, "Paul Janzen" <paul.janzen at umontana.edu>, "Perry.Tim" <tim.perry at orbitalatk.com>, "Michelle Reno" <mreno at swri.edu>, "Tyler.Ryan" <ryan.tyler at orbitalatk.com>, "Wesley.Sheral" <sheral.wesley at orbitalatk.com>
Sent: Thursday, November 10, 2016 3:46:11 PM
Subject: IBEX Orbit# 348 ATS Approval ( 23 Nov - 3 Dec )
All,
Here are the planning products and ATS for Orbit# 348.
Please respond to this email thread with your comments and approvals
Approvals are required before COB 12 Nov 16.
Note the following:
1. No Battery Balancing
2. NO Moon in Lo FOV Commands
3. IBEX_2016_328_o0348a_v001.ccvr
Command Load Constraint Violation Report (CCVR)
==========================
HARD CONSTRAINT VIOLATIONS
==========================
NO VIOLATIONS.
==========================
SOFT CONSTRAINT VIOLATIONS
==========================
IBX-CLC-016: No command to enable spin pulse protection was found after
transition to science mode at 2016/11/24 02:09:27 UTC
IBX-CLC-016: No command to enable spin pulse protection was found after
transition to science mode at 2016/11/27 21:51:49 UTC
==============
OTHER MESSAGES
==============
NO MESSAGES.
Timothy E.Perry
CRS, IBEX & OCO-2
Mission Operations
tim.perry at orbitalatk.com
Office (703) 406-5976
Cell (301) 606-1430
Corp Cell (571)-447-8977
Notice: This e-mail is intended solely for use of the individual or entity to which it is addressed and may contain information that is proprietary, privileged and exempt from disclosure under applicable law. If the reader is not the intended recipient or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. This communication may also contain data subject to U.S. export laws. If so, data subject to the International Traffic in Arms Regulation cannot be disseminated, distributed, transferred, or copied, whether incorporated or in its original form, to foreign nationals, residing in the U.S. or abroad, absent the express prior approval of the U.S. Department of State. Data subject to the Export Administration Act may not be disseminated, distributed, transferred or copied contrary to U. S. Department of Commerce regulations. If you have received this communication in error, please notify the sender by reply e-mail and destroy the e-mail message and any physical copies made of the communication.
Thank you.
*********************
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