Hi all,
I have looked at the orbit 0654 ATS file, IBEX_2024_189_o0654a_v001.scr and I approve.
The constraint violations in IBEX_2024_189_o0654a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2024_189_o0654a_v001.scr match those in the STF, IBEX_2024_189_o0654a_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_189_o0654a_v001.oef
and as verified with ibex_orbit.
There is 1 star tracker outage this orbit. Outage begins at 2024-07-16 17:40:53 and lasts for 3.4 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit654_Contacts.txt for all contacts (3).
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 0653 left us pointing in safe directions for the orbit 0654 arc A ascending and descending sequences:
ibex_rotate -o -u -0.232352,0.895921,0.3786 -w ibex-sun -t 2024/07:08:05:30:15
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.232352,+0.895921,+0.378600
which is R.A. +104.539 Decl. +22.247
missing R.A. +107.561 Decl. +22.437 (ibex-sun)
error is R.A. +3.022 Decl. +0.190
for a total 2.802 deg
ibex_rotate -o -u -0.232352,0.895921,0.3786 -w ibex-sun -t 2024/07:11:16:33:26
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.232352,+0.895921,+0.378600
which is R.A. +104.539 Decl. +22.247
missing R.A. +111.034 Decl. +22.047 (ibex-sun)
error is R.A. +6.495 Decl. +0.200
for a total 6.019 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 -0.302549,0.878316,0.370168 -w ibex-sun -t 2024/07:11:18:16:34
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.302549,+0.878316,+0.370168
which is R.A. +109.007 Decl. +21.726
missing R.A. +111.108 Decl. +22.038 (ibex-sun)
error is R.A. +2.101 Decl. +0.312
for a total 1.974 deg
ibex_rotate -o -u -0.302549,0.878316,0.370168 -w ibex-sun -t 2024/07:11:19:51:40
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.302549,+0.878316,+0.370168
which is R.A. +109.007 Decl. +21.726
missing R.A. +111.176 Decl. +22.029 (ibex-sun)
error is R.A. +2.169 Decl. +0.303
for a total 2.035 deg
ibex_rotate -o -u -0.302549,0.878316,0.370168 -w ibex-sun -t 2024/07:16:02:50:34
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.302549,+0.878316,+0.370168
which is R.A. +109.007 Decl. +21.726
missing R.A. +115.643 Decl. +21.363 (ibex-sun)
error is R.A. +6.636 Decl. +0.363
for a total 6.183 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0655 apogee:
ibex_rotate -o -u -0.372876,0.854863,0.360795 -w ibex-sun -t 2024/07:16:04:54:44
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.372876,+0.854863,+0.360795
which is R.A. +113.566 Decl. +21.149
missing R.A. +115.731 Decl. +21.345 (ibex-sun)
error is R.A. +2.165 Decl. +0.196
for a total 2.028 deg
ibex_rotate -o -u -0.372876,0.854863,0.360795 -w ibex-sun -t 2024-07-21T01:30:07
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.372876,+0.854863,+0.360795
which is R.A. +113.566 Decl. +21.149
missing R.A. +120.482 Decl. +20.508 (ibex-sun)
error is R.A. +6.916 Decl. +0.641
for a total 6.495 deg
There is no overlap with orbit 0653 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492