Hi all,
I have looked at the orbit 0662 ATS file, IBEX_2024_262_o0662a_v001.scr and I approve.
The constraint violations in IBEX_2024_262_o0662a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2024_262_o0662a_v001.scr match those in the STF, IBEX_2024_262_o0662a_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_262_o0662a_v001.oef
and as verified with ibex_orbit.
I note that the 14Re values in Crossing times is 10 minutes different from the ibex_orbit. All other crossings are consistent between the files.
There is 1 star tracker outage this orbit. Outage begins at 2024-09-12 07:25:35 and lasts for 189.1 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit662_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 Sun maneuver at perigee of orbit 0661 left us pointing in safe directions for the orbit 0662 arc A ascending and descending sequences:
ibex_rotate -o -r +175.538 -d +1.945 -w ibex-sun -t 2024/09:17:21:32:11
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.996395,+0.077753,+0.033940
which is R.A. +175.538 Decl. +1.945
missing R.A. +175.538 Decl. +1.945 (ibex-sun)
error is R.A. +0.000 Decl. +0.000
for a total 0.000 deg
ibex_rotate -o -r +175.538 -d +1.945 -w ibex-sun -t 2024/09:18:18:45:29
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.996395,+0.077753,+0.033940
which is R.A. +175.538 Decl. +1.945
missing R.A. +176.338 Decl. +1.567 (ibex-sun)
error is R.A. +0.800 Decl. +0.378
for a total 0.884 deg
ibex_rotate -o -r +175.538 -d +1.945 -w ibex-sun -t 2024/09:22:12:53:22
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.996395,+0.077753,+0.033940
which is R.A. +175.538 Decl. +1.945
missing R.A. +179.618 Decl. +0.185 (ibex-sun)
error is R.A. +4.080 Decl. +1.760
for a total 4.443 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 -0.99918,0.039922,0.006737 -w ibex-sun -t 2024/09:22:14:36:30
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.999180,+0.039922,+0.006737
which is R.A. +177.712 Decl. +0.386
missing R.A. +179.682 Decl. +0.158 (ibex-sun)
error is R.A. +1.970 Decl. +0.228
for a total 1.983 deg
ibex_rotate -o -u -0.99918,0.039922,0.006737 -w ibex-sun -t 2024/09:22:16:11:36
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.999180,+0.039922,+0.006737
which is R.A. +177.712 Decl. +0.386
missing R.A. +179.741 Decl. +0.133 (ibex-sun)
error is R.A. +2.029 Decl. +0.253
for a total 2.044 deg
ibex_rotate -o -u -0.99918,0.039922,0.006737 -w ibex-sun -t 2024/09:27:05:35:22
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.999180,+0.039922,+0.006737
which is R.A. +177.712 Decl. +0.386
missing R.A. +183.910 Decl. -1.676 (ibex-sun)
error is R.A. +6.198 Decl. +2.062
for a total 6.532 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0663 apogee:
ibex_rotate -o -u -0.999149,-0.033372,-0.024223 -w ibex-sun -t 2024/09:27:07:45:16
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.999149,-0.033372,-0.024223
which is R.A. +181.913 Decl. -1.388
missing R.A. +183.996 Decl. -1.716 (ibex-sun)
error is R.A. +2.083 Decl. +0.328
for a total 2.108 deg
ibex_rotate -o -u -0.999149,-0.033372,-0.024223 -w ibex-sun -t 2024-10-02T08:56:25
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.999149,-0.033372,-0.024223
which is R.A. +181.913 Decl. -1.388
missing R.A. +188.493 Decl. -3.639 (ibex-sun)
error is R.A. +6.580 Decl. +2.251
for a total 6.948 deg
There is no overlap with orbit 0661 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492