Hi all,
I have looked at the orbit 0583 ATS file, IBEX_2022_274_o0583a_v001.scr and I approve.
The constraint violations in IBEX_2022_274_o0583a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2022_274_o0583a_v001.scr match those in the STF, IBEX_2022_274_o0583a_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_274_o0583a_v001.oef and as verified with ibex_orbit.
There is 1 star tracker outage this orbit lasting over 6 days and spanning both perigee and apogee.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit583_Contacts.txt for all contacts (3).
No Battery Balancing this orbit
The Inertial maneuver at perigee of orbit 0582 left us pointing in safe directions for the orbit 0583 arc A ascending and descending sequences:
ibex_rotate -o -u -0.99583,-0.07972,-0.044352 -w ibex-sun -t 2022/10:01:12:07:00
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.995830,-0.079720,-0.044352
which is R.A. +184.577 Decl. -2.542
missing R.A. +187.365 Decl. -3.199 (ibex-sun)
error is R.A. +2.788 Decl. +0.657
for a total 2.860 deg
ibex_rotate -o -u -0.99583,-0.07972,-0.044352 -w ibex-sun -t 2022/10:05:16:58:34
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.995830,-0.079720,-0.044352
which is R.A. +184.577 Decl. -2.542
missing R.A. +191.074 Decl. -4.749 (ibex-sun)
error is R.A. +6.497 Decl. +2.207
for a total 6.849 deg
The Sun 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 -r +191.142 -d -4.776 -w ibex-sun -t 2022/10:05:18:46:42
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.977745,-0.192570,-0.083260
which is R.A. +191.142 Decl. -4.776
missing R.A. +191.142 Decl. -4.776 (ibex-sun)
error is R.A. +0.000 Decl. +0.000
for a total 0.000 deg
ibex_rotate -o -r +191.142 -d -4.776 -w ibex-sun -t 2022/10:05:20:16:48
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.977745,-0.192570,-0.083260
which is R.A. +191.142 Decl. -4.776
missing R.A. +191.199 Decl. -4.799 (ibex-sun)
error is R.A. +0.057 Decl. +0.023
for a total 0.061 deg
ibex_rotate -o -r +191.142 -d -4.776 -w ibex-sun -t 2022/10:10:00:07:48
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.977745,-0.192570,-0.083260
which is R.A. +191.142 Decl. -4.776
missing R.A. +195.093 Decl. -6.427 (ibex-sun)
error is R.A. +3.951 Decl. +1.651
for a total 4.264 deg
The Sun precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0584 apogee:
ibex_rotate -o -r +195.253 -d -6.500 -w ibex-sun -t 2022/10:10:04:09:05
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.958572,-0.261391,-0.113203
which is R.A. +195.253 Decl. -6.500
missing R.A. +195.253 Decl. -6.500 (ibex-sun)
error is R.A. +0.000 Decl. +0.000
for a total 0.000 deg
ibex_rotate -o -r +195.253 -d -6.500 -w ibex-sun -t 2022-10-15T02:17:12
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.958572,-0.261391,-0.113203
which is R.A. +195.253 Decl. -6.500
missing R.A. +199.706 Decl. -8.303 (ibex-sun)
error is R.A. +4.453 Decl. +1.803
for a total 4.770 deg
There is no overlap with orbit 0582 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: Friday, 2022-September-16 at 13:37
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 #583 ATS Approval (01 - 10 Oct 2022)
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All,
Attached are the planning files for Orbit #583. Please respond to this thread with comments and approvals. Approvals are required by COB, 20 Sept 2022
Please note the following:
3.
No Battery Balancing this orbit
Begin
2022/10/01 03:00:00– End 2022/10/01 04:30:00
4.
Command Load Constraint Violation Report (CCVR)
IBEX_2022_274_o0583a_v001.ccvr
# Input files: 1
# IBEX_2022_274_o0583a_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 2022/10/01 08:42:55 UTC
IBX-CLC-016: No command to enable spin pulse protection was found after
transition to science mode at 2022/10/05 19:46:48 UTC
==============
OTHER MESSAGES
==============
NO MESSAGES.