Hi all,
I have looked at the orbit 0652 ATS file, IBEX_2024_171_o0652a_v001.scr and I approve.
The constraint violations in IBEX_2024_171_o0652a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2024_171_o0652a_v001.scr match those in the STF, IBEX_2024_171_o0652a_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_2024_171_o0652a_v001.oef
and as verified with ibex_orbit.
There are 2 star tracker outages this orbit. The first outage begins at 2024-06-19 19:14:00 and lasts for 22.1 hours. The other outage begins at 2024-06-28 16:29:32 and lasts for 4.2 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit652_Contacts.txt for all contacts (2).
No Battery Balancing this orbit.
The Inertial maneuver at perigee of orbit 0651 left us pointing in safe directions for the orbit 0652 arc A ascending and descending sequences:
ibex_rotate -o -u 0.063567,0.919187,0.388658 -w ibex-sun -t 2024/06:20:07:09:38
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.063567,+0.919187,+0.388658
which is R.A. +86.044 Decl. +22.871
missing R.A. +89.006 Decl. +23.415 (ibex-sun)
error is R.A. +2.962 Decl. +0.544
for a total 2.778 deg
ibex_rotate -o -u 0.063567,0.919187,0.388658 -w ibex-sun -t 2024/06:23:17:49:04
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.063567,+0.919187,+0.388658
which is R.A. +86.044 Decl. +22.871
missing R.A. +92.550 Decl. +23.433 (ibex-sun)
error is R.A. +6.506 Decl. +0.562
for a total 6.008 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 -0.008844,0.921299,0.388754 -w ibex-sun -t 2024/06:23:19:32:12
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.008844,+0.921299,+0.388754
which is R.A. +90.550 Decl. +22.877
missing R.A. +92.625 Decl. +23.432 (ibex-sun)
error is R.A. +2.075 Decl. +0.555
for a total 1.987 deg
ibex_rotate -o -u -0.008844,0.921299,0.388754 -w ibex-sun -t 2024/06:23:21:07:18
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.008844,+0.921299,+0.388754
which is R.A. +90.550 Decl. +22.877
missing R.A. +92.695 Decl. +23.432 (ibex-sun)
error is R.A. +2.145 Decl. +0.555
for a total 2.049 deg
ibex_rotate -o -u -0.008844,0.921299,0.388754 -w ibex-sun -t 2024/06:28:04:03:08
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.008844,+0.921299,+0.388754
which is R.A. +90.550 Decl. +22.877
missing R.A. +97.248 Decl. +23.287 (ibex-sun)
error is R.A. +6.698 Decl. +0.410
for a total 6.175 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0653 apogee:
ibex_rotate -o -u -0.083706,0.917824,0.388063 -w ibex-sun -t 2024/06:28:06:08:40
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.083706,+0.917824,+0.388063
which is R.A. +95.211 Decl. +22.834
missing R.A. +97.339 Decl. +23.280 (ibex-sun)
error is R.A. +2.128 Decl. +0.446
for a total 2.008 deg
ibex_rotate -o -u -0.083706,0.917824,0.388063 -w ibex-sun -t 2024-07-03T04:37:32
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.083706,+0.917824,+0.388063
which is R.A. +95.211 Decl. +22.834
missing R.A. +102.336 Decl. +22.975 (ibex-sun)
error is R.A. +7.125 Decl. +0.141
for a total 6.564 deg
There is no overlap with orbit 0651 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492