Hi all,
I have looked at the orbit 0616 ATS file, IBEX_2023_210_o0616a_v001.scr and I approve.
The constraint violations in IBEX_2023_210_o0616a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2023_210_o0616a_v001.scr match those in the STF, IBEX_2023_210_o0616a_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_210_o0616a_v001.oef and as verified
with ibex_orbit.
There is 1 star tracker outage this orbit. Outage begins at 2023-07-29 18:00:43 and lasts for ~26 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit616_Contacts.txt for all contacts (2).
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 0615 left us pointing in safe directions for the orbit 0616 arc A ascending and descending sequences:
ibex_rotate -o -u -0.546425,0.771944,0.324842 -w ibex-sun -t 2023/07:29:14:03:44
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.546425,+0.771944,+0.324842
which is R.A. +125.293 Decl. +18.956
missing R.A. +128.257 Decl. +18.778 (ibex-sun)
error is R.A. +2.964 Decl. +0.178
for a total 2.810 deg
ibex_rotate -o -u -0.546425,0.771944,0.324842 -w ibex-sun -t 2023/08:02:03:00:29
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.546425,+0.771944,+0.324842
which is R.A. +125.293 Decl. +18.956
missing R.A. +131.616 Decl. +17.967 (ibex-sun)
error is R.A. +6.323 Decl. +0.989
for a total 6.078 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 -0.606906,0.733076,0.307024 -w ibex-sun -t 2023/08:02:04:43:37
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.606906,+0.733076,+0.307024
which is R.A. +129.621 Decl. +17.880
missing R.A. +131.686 Decl. +17.950 (ibex-sun)
error is R.A. +2.065 Decl. +0.070
for a total 1.966 deg
ibex_rotate -o -u -0.606906,0.733076,0.307024 -w ibex-sun -t 2023/08:02:06:18:43
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.606906,+0.733076,+0.307024
which is R.A. +129.621 Decl. +17.880
missing R.A. +131.751 Decl. +17.934 (ibex-sun)
error is R.A. +2.130 Decl. +0.054
for a total 2.027 deg
ibex_rotate -o -u -0.606906,0.733076,0.307024 -w ibex-sun -t 2023/08:06:15:11:23
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.606906,+0.733076,+0.307024
which is R.A. +129.621 Decl. +17.880
missing R.A. +136.090 Decl. +16.749 (ibex-sun)
error is R.A. +6.469 Decl. +1.131
for a total 6.278 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0617 apogee:
ibex_rotate -o -u -0.665097,0.68868,0.288731 -w ibex-sun -t 2023/08:06:17:50:28
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.665097,+0.688680,+0.288731
which is R.A. +134.002 Decl. +16.782
missing R.A. +136.197 Decl. +16.714 (ibex-sun)
error is R.A. +2.195 Decl. +0.068
for a total 2.103 deg
ibex_rotate -o -u -0.665097,0.68868,0.288731 -w ibex-sun -t 2023-08-11T15:41:48
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.665097,+0.688680,+0.288731
which is R.A. +134.002 Decl. +16.782
missing R.A. +140.743 Decl. +15.357 (ibex-sun)
error is R.A. +6.741 Decl. +1.425
for a total 6.632 deg
There is no overlap with orbit 0615 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492