[Isocops] IBEX Orbit #563 ATS Approval ( 03 - 12 Apr 2022)
Carol Weaver
Carol.Weaver at unh.edu
Wed Mar 23 11:05:51 EDT 2022
Hi all,
I have looked at the orbit 0563 ATS file, IBEX_2022_092_o0563a_v001.scr and I approve.
The constraint violations in IBEX_2022_092_o0563a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2022_092_o0563a_v001.scr match those in the STF, IBEX_2022_093_o0563a_v002.stf.
Ascending and descending command sequences are consistent with each other, 15 Re ascending, the apogee maneuver time and 15 Re descending as determined from the OEF, IBEX_2022_092_o0563a_v001.oef and as verified with ibex_orbit.
There is 1 star tracker outage this orbit lasting ~7.4 hours and ending 1.6 hours before the perigee maneuver.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit563_Contacts.txt for all contacts (3).
Battery Balancing is 90 minutes long, more than 2 hours away from payload descending macros, and more than 15 minutes away from a maneuver.
The Inertial maneuver at perigee of orbit 0562 left us pointing in safe directions for the orbit 0563 arc A ascending and descending sequences:
ibex_rotate -o -u 0.982755,0.173039,0.065194 -w ibex-sun -t 2022/04:03:09:18:06
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.982755,+0.173039,+0.065194
which is R.A. +9.986 Decl. +3.738
missing R.A. +12.215 Decl. +5.221 (ibex-sun)
error is R.A. +2.229 Decl. +1.483
for a total 2.671 deg
ibex_rotate -o -u 0.982755,0.173039,0.065194 -w ibex-sun -t 2022/04:07:03:11:22
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.982755,+0.173039,+0.065194
which is R.A. +9.986 Decl. +3.738
missing R.A. +15.738 Decl. +6.710 (ibex-sun)
error is R.A. +5.752 Decl. +2.972
for a total 6.452 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 0.965272,0.243499,0.094647 -w ibex-sun -t 2022/04:07:04:54:30
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.965272,+0.243499,+0.094647
which is R.A. +14.158 Decl. +5.431
missing R.A. +15.804 Decl. +6.738 (ibex-sun)
error is R.A. +1.646 Decl. +1.307
for a total 2.095 deg
ibex_rotate -o -u 0.965272,0.243499,0.094647 -w ibex-sun -t 2022/04:07:06:29:36
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.965272,+0.243499,+0.094647
which is R.A. +14.158 Decl. +5.431
missing R.A. +15.865 Decl. +6.764 (ibex-sun)
error is R.A. +1.707 Decl. +1.333
for a total 2.158 deg
ibex_rotate -o -u 0.965272,0.243499,0.094647 -w ibex-sun -t 2022/04:11:19:36:55
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.965272,+0.243499,+0.094647
which is R.A. +14.158 Decl. +5.431
missing R.A. +19.947 Decl. +8.426 (ibex-sun)
error is R.A. +5.789 Decl. +2.995
for a total 6.479 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0564 apogee:
ibex_rotate -o -u 0.941418,0.312894,0.125818 -w ibex-sun -t 2022/04:11:23:14:58
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.941418,+0.312894,+0.125818
which is R.A. +18.385 Decl. +7.228
missing R.A. +20.079 Decl. +8.472 (ibex-sun)
error is R.A. +1.694 Decl. +1.244
for a total 2.089 deg
ibex_rotate -o -u 0.941418,0.312894,0.125818 -w ibex-sun -t 2022-04-16T17:36:56
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.941418,+0.312894,+0.125818
which is R.A. +18.385 Decl. +7.228
missing R.A. +24.567 Decl. +10.228 (ibex-sun)
error is R.A. +6.182 Decl. +3.000
for a total 6.806 deg
There is no overlap with orbit 0562 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503.902.8492
From: Perry, Timothy E [US] (SP) <Timothy.Perry at ngc.com>
Date: Tuesday, 2022-March-22 at 14:39
To: Carol Weaver <carol.weaver at unh.edu>, Chubin, Eric [US] (SP) <Eric.Chubin at ngc.com>, David Heirtzler <David.Heirtzler at unh.edu>, ADS-IBEX at l3harris.com <ADS-IBEX at l3harris.com>, IBEXOPS at gmail.com <IBEXOPS at gmail.com>, isocops at lists.sr.unh.edu <isocops at lists.sr.unh.edu>, fair-play at comcast.net <fair-play at comcast.net>, kwfairchild at gmail.com <kwfairchild at gmail.com>, Kenneth Fairchild <Ken.Fairchild at unh.edu>, angoldconsulting at earthlink.net <angoldconsulting at earthlink.net>, Paul.Janzen at mso.umt.edu <Paul.Janzen at mso.umt.edu>, Perry, Timothy E [US] (SP) <Timothy.Perry at ngc.com>, Tyler, Ryan S [US] (SP) <Ryan.Tyler at ngc.com>, Wesley, Sheral R [US] (SP) <Sheral.Wesley at ngc.com>, Wynn, Reese [US] (SP) <Reese.Wynn at ngc.com>
Subject: IBEX Orbit #563 ATS Approval ( 03 - 12 Apr 2022)
CAUTION: This email originated from outside of the University System. Do not click links or open attachments unless you recognize the sender and know the content is safe.
All,
Attached are the planning files for Orbit #563. Please respond to this thread with comments and approvals.
Approvals are required by COB, 23 Mar 2022
Please note the following:
1. Battery Balancing this orbit
Begin 2022/04/12 04:00:00– End 2022/04/12 05:30:00
1. Command Load Constraint Violation Report (CCVR)
IBEX_2022_092_o0563a_v001.ccvr
# Input files: 1
# IBEX_2022_092_o0563a_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 2022/04/03 06:18:32 UTC
IBX-CLC-016: No command to enable spin pulse protection was found after
transition to science mode at 2022/04/07 05:59:36 UTC
==============
OTHER MESSAGES
==============
NO MESSAGES.
Timothy E.Perry
CRS IBEX OCO-2
Mission Operations
timothy.perry at ngc.com
Office (703) 406-5976
Cell (301) 606-1430
[cid:image001.png at 01D83DF7.FF4925F0]
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.sr.unh.edu/pipermail/isocops/attachments/20220323/b3651552/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 5049 bytes
Desc: image001.png
URL: <https://lists.sr.unh.edu/pipermail/isocops/attachments/20220323/b3651552/image001-0001.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: IBEX-Command-Approval-Checklist-Rev16h_0563_CEW.docx
Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
Size: 46809 bytes
Desc: IBEX-Command-Approval-Checklist-Rev16h_0563_CEW.docx
URL: <https://lists.sr.unh.edu/pipermail/isocops/attachments/20220323/b3651552/IBEX-Command-Approval-Checklist-Rev16h_0563_CEW-0001.docx>
More information about the Isocops
mailing list