Hi all,
I have looked at the orbit 0598 ATS file, IBEX_2023_045_o0598a_v001.scr and I approve.
The constraint violations in IBEX_2023_045_o0598a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2023_045_o0598a_v001.scr match those in the STF, IBEX_2023_045_o0598a_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_2023_045_o0598a_v001.oef and as verified
with ibex_orbit.
No star tracker outage this orbit.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit598_Contacts.txt for all contacts (3).
No Battery Balancing this orbit
The Inertial maneuver at perigee of orbit 0597 left us pointing in safe directions for the orbit 0598 arc A ascending and descending sequences:
ibex_rotate -o -u 0.830284,-0.507285,-0.230848 -w ibex-sun -t 2023/02:14:17:58:22
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.830284,-0.507285,-0.230848
which is R.A. +328.576 Decl. -13.347
missing R.A. +327.720 Decl. -13.056 (ibex-sun)
error is R.A. +0.856 Decl. +0.291
for a total 0.882 deg
ibex_rotate -o -u 0.830284,-0.507285,-0.230848 -w ibex-sun -t 2023/02:18:05:30:25
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.830284,-0.507285,-0.230848
which is R.A. +328.576 Decl. -13.347
missing R.A. +331.201 Decl. -11.787 (ibex-sun)
error is R.A. +2.625 Decl. +1.560
for a total 3.000 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 0.871664,-0.445957,-0.203283 -w ibex-sun -t 2023/02:18:07:13:33
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.871664,-0.445957,-0.203283
which is R.A. +332.905 Decl. -11.729
missing R.A. +331.270 Decl. -11.761 (ibex-sun)
error is R.A. +1.635 Decl. +0.032
for a total 1.601 deg
ibex_rotate -o -u 0.871664,-0.445957,-0.203283 -w ibex-sun -t 2023/02:18:08:48:39
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.871664,-0.445957,-0.203283
which is R.A. +332.905 Decl. -11.729
missing R.A. +331.334 Decl. -11.737 (ibex-sun)
error is R.A. +1.571 Decl. +0.008
for a total 1.538 deg
ibex_rotate -o -u 0.871664,-0.445957,-0.203283 -w ibex-sun -t 2023/02:22:17:00:31
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.871664,-0.445957,-0.203283
which is R.A. +332.905 Decl. -11.729
missing R.A. +335.377 Decl. -10.222 (ibex-sun)
error is R.A. +2.472 Decl. +1.507
for a total 2.856 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0599 apogee:
ibex_rotate -o -u 0.906699,-0.382874,-0.17693 -w ibex-sun -t 2023/02:22:19:56:25
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.906699,-0.382874,-0.176930
which is R.A. +337.107 Decl. -10.191
missing R.A. +335.491 Decl. -10.184 (ibex-sun)
error is R.A. +1.616 Decl. +0.007
for a total 1.591 deg
ibex_rotate -o -u 0.906699,-0.382874,-0.17693 -w ibex-sun -t 2023-02-27T16:34:11
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.906699,-0.382874,-0.176930
which is R.A. +337.107 Decl. -10.191
missing R.A. +340.224 Decl. -8.329 (ibex-sun)
error is R.A. +3.117 Decl. +1.862
for a total 3.596 deg
There is no overlap with orbit 0597 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492
From:
Perry, Timothy E [US] (SP) <Timothy.Perry@ngc.com>
Date: Tuesday, January 31, 2023 at 14:29
To: Carol Weaver <carol.weaver@unh.edu>, Chubin, Eric [US] (SP) <Eric.Chubin@ngc.com>, David Heirtzler <David.Heirtzler@unh.edu>, IBEX FDG Group <ADS-IBEX@l3harris.com>, IBEXOPS <IBEXOPS@gmail.com>, ISOC <isocops@lists.sr.unh.edu>, Ken Fairchild <fair-play@comcast.net>,
Ken Fairchild (kwfairchild@gmail.com) <kwfairchild@gmail.com>, Kenneth Fairchild <Ken.Fairchild@unh.edu>, angoldconsulting <angoldconsulting@earthlink.net>, Paul Janzen <Paul.Janzen@mso.umt.edu>, Perry, Timothy E [US] (SP) <Timothy.Perry@ngc.com>, Tyler, Ryan
S [US] (SP) <Ryan.Tyler@ngc.com>, Wesley, Sheral R [US] (SP) <Sheral.Wesley@ngc.com>, Wynn, Reese [US] (SP) <Reese.Wynn@ngc.com>
Subject: IBEX Orbit #598 ATS Approval (14 - 23 Feb 2023)
CAUTION: This email originated from outside of the University System. Do not click links or open attachments unless you recognize
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All,
Attached are the planning files for Orbit #598. Please respond to this thread with comments and approvals.
Approvals are required by COB, 04 Feb 2023
Please note the following:
1.
No Battery Balancing this orbit
2.
Command Load Constraint Violation Report (CCVR)
IBEX_2023_045_o0598a_v001.ccvr
# Input files:
1
#
IBEX_2023_045_o0598a_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 2023/02/14 15:56:30 UTC
IBX-CLC-016: No command to enable spin pulse protection was found after
transition to science mode at 2023/02/18 08:18:39 UTC
==============
OTHER MESSAGES
==============
NO MESSAGES