[Isocops] IBEX ORbit# 335 ATS Approval (30 Jul 16 - 8 Aug 16) - v001 approval

Ken Fairchild fair-play at comcast.net
Tue Jul 19 13:15:15 EDT 2016


All, 

I have looked at the orbit 335 ATS, 



IBEX_2016_212_o0335a_v001.scr, 




and I approve. 




The only constraint violations in 




IBEX_2016_212_o0335a_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_212_o0335a_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_212_o0335a_v001.oef, 




and as verified with ibex_orbit. 




There is one star tracker outage. The outage starts about an hour before perigee and runs for 6+ hours. No despinning should be required due to this outage. 




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_Orbit335_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 334 left us pointing in safe directions for the orbit 335 arc A ascending and descending sequences: 




ibex_rotate -o -u -0.570424,0.75739,0.317768 -w ibex-sun -t 2016/07:30:12:05:15 

Quaternion +0.000000,+0.000000,+0.000000,+0.000000 

points axis +1.000000,+0.000000,+0.000000 

towards ECI -0.570424,+0.757390,+0.317768 

which is R.A. +126.985 Decl. +18.528 

missing R.A. +129.890 Decl. +18.381 (ibex-sun) 

error is R.A. +2.905 Decl. +0.147 

for a total 2.760 deg 




ibex_rotate -o -u -0.570424,0.75739,0.317768 -w ibex-sun -t 2016/08:03:01:32:14 

Quaternion +0.000000,+0.000000,+0.000000,+0.000000 

points axis +1.000000,+0.000000,+0.000000 

towards ECI -0.570424,+0.757390,+0.317768 

which is R.A. +126.985 Decl. +18.528 

missing R.A. +133.343 Decl. +17.465 (ibex-sun) 

error is R.A. +6.358 Decl. +1.063 

for a total 6.139 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 -0.629889,0.716635,0.299457 -w ibex-sun -t 2016/08:03:03:15:22 

Quaternion +0.000000,+0.000000,+0.000000,+0.000000 

points axis +1.000000,+0.000000,+0.000000 

towards ECI -0.629889,+0.716635,+0.299457 

which is R.A. +131.314 Decl. +17.425 

missing R.A. +133.413 Decl. +17.446 (ibex-sun) 

error is R.A. +2.099 Decl. +0.021 

for a total 2.003 deg 




ibex_rotate -o -u -0.629889,0.716635,0.299457 -w ibex-sun -t 2016/08:03:04:50:28 

Quaternion +0.000000,+0.000000,+0.000000,+0.000000 

points axis +1.000000,+0.000000,+0.000000 

towards ECI -0.629889,+0.716635,+0.299457 

which is R.A. +131.314 Decl. +17.425 

missing R.A. +133.478 Decl. +17.429 (ibex-sun) 

error is R.A. +2.164 Decl. +0.004 

for a total 2.065 deg 




ibex_rotate -o -u -0.629889,0.716635,0.299457 -w ibex-sun -t 2016/08:07:14:39:40 

Quaternion +0.000000,+0.000000,+0.000000,+0.000000 

points axis +1.000000,+0.000000,+0.000000 

towards ECI -0.629889,+0.716635,+0.299457 

which is R.A. +131.314 Decl. +17.425 

missing R.A. +137.785 Decl. +16.258 (ibex-sun) 

error is R.A. +6.471 Decl. +1.167 

for a total 6.302 deg 




The inertial maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 336 apogee: 




ibex_rotate -o -u -0.688092,0.669538,0.279728 -w ibex-sun -t 2016/08:07:16:48:59 

Quaternion +0.000000,+0.000000,+0.000000,+0.000000 

points axis +1.000000,+0.000000,+0.000000 

towards ECI -0.688092,+0.669538,+0.279728 

which is R.A. +135.783 Decl. +16.244 

missing R.A. +137.869 Decl. +16.233 (ibex-sun) 

error is R.A. +2.086 Decl. +0.011 

for a total 2.003 deg 




ibex_rotate -o -u -0.688092,0.669538,0.279728 -w ibex-sun -t 2016-08-12T14:03:05.446Z 

Quaternion +0.000000,+0.000000,+0.000000,+0.000000 

points axis +1.000000,+0.000000,+0.000000 

towards ECI -0.688092,+0.669538,+0.279728 

which is R.A. +135.783 Decl. +16.244 

missing R.A. +142.417 Decl. +14.781 (ibex-sun) 

error is R.A. +6.634 Decl. +1.463 

for a total 6.557 deg 




No Lo O-mode. 




There is no overlap with orbit 334 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: "Wesley.Sheral" <sheral.wesley at orbitalatk.com> 
To: "David Heirtzler" <dheirtzl at atlas.sr.unh.edu>, "IBEX-FDG" <IBEX.fdg at applieddefense.com>, "IBEXOPS" <IBEXOPS at gmail.com>, "ISOC" <isocops at lists.sr.unh.edu>, "Ken Fairchild" <fair-play at comcast.net>, "Lockwood.Robert" <robert.lockwood at orbitalatk.com>, "Michelle Reno" <mreno at swri.edu>, "Nigel Angold" <nigel.angold at nasa.gov>, "Paul Janzen" <paul.janzen at umontana.edu>, "Perry.Tim" <tim.perry at orbitalatk.com>, "Tyler.Ryan" <ryan.tyler at orbitalatk.com>, "Wesley.Sheral" <sheral.wesley at orbitalatk.com> 
Sent: Monday, July 18, 2016 1:13:31 AM 
Subject: IBEX ORbit# 335 ATS Approval (30 Jul 16 - 8 Aug 16) 



Here are the planning files and ATS for Orbit# 335. 

Please respond to this email thread with your comments and approvals 

Approvals are required before 19 July 16 @ 2200 UTC 



Note the following: 

1. No Battery Balancing at PERIGEE 

2. Command Load Constraint Violation Report 

IBEX_2016_212_o0335a_v001.scr 



========================== 

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 2016/07/30 10:42:28 UTC 

IBX-CLC-016: No command to enable spin pulse protection was found after 

transition to science mode at 2016/08/03 04:20:28 UTC 



============== 

OTHER MESSAGES 

============== 

NO MESSAGES. 







Sheral R. Wesley 

IBEX Mission OPS 

CRS/CYGNUS Mission Planning 

Bldg. 2 Room 1337 

Office (703) 406-5641 

Cell (202) 236-0802 







------------------------------------------------------------------------------ 

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, that data subject to the International Traffic in Arms Regulation cannot be disseminated, distributed or copied to foreign nationals, residing in the U.S. or abroad, absent the express prior approval of the U.S. Department of State. 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. 
********** ********** 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.sr.unh.edu/pipermail/isocops/attachments/20160719/64a71677/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 2392 bytes
Desc: image001.jpg
URL: <http://lists.sr.unh.edu/pipermail/isocops/attachments/20160719/64a71677/image001-0001.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: IBEX-Command-Approval-Checklist-Rev16b-o0335_KWF.doc
Type: application/msword
Size: 121344 bytes
Desc: not available
URL: <http://lists.sr.unh.edu/pipermail/isocops/attachments/20160719/64a71677/IBEX-Command-Approval-Checklist-Rev16b-o0335_KWF-0001.doc>


More information about the Isocops mailing list