Hi all,
I have looked at the orbit 0641 ATS file, IBEX_2024_072_o0641a_v001.scr and I approve.
The constraint violations in IBEX_2024_072_o0641a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2024_072_o0641a_v001.scr match those in the STF, IBEX_2024_072_o0641a_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_072_o0641a_v001.oef and as verified
with ibex_orbit.
There is 1 star tracker outage this orbit. Outage begins at 2024-03-20 21:37:32 and lasts for 9.0 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit641_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 0640 left us pointing in safe directions for the orbit 0641 arc A ascending and descending sequences:
ibex_rotate -o -u 0.992133,-0.110514,-0.058819 -w ibex-sun -t 2024/03:12:15:12:16
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.992133,-0.110514,-0.058819
which is R.A. +353.644 Decl. -3.372
missing R.A. +352.829 Decl. -3.119 (ibex-sun)
error is R.A. +0.815 Decl. +0.253
for a total 0.852 deg
ibex_rotate -o -u 0.992133,-0.110514,-0.058819 -w ibex-sun -t 2024/03:16:08:07:09
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.992133,-0.110514,-0.058819
which is R.A. +353.644 Decl. -3.372
missing R.A. +356.319 Decl. -1.581 (ibex-sun)
error is R.A. +2.675 Decl. +1.791
for a total 3.217 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 0.999063,-0.035202,-0.025182 -w ibex-sun -t 2024/03:16:09:50:17
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.999063,-0.035202,-0.025182
which is R.A. +357.982 Decl. -1.443
missing R.A. +356.384 Decl. -1.552 (ibex-sun)
error is R.A. +1.598 Decl. +0.109
for a total 1.601 deg
ibex_rotate -o -u 0.999063,-0.035202,-0.025182 -w ibex-sun -t 2024/03:16:11:25:23
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.999063,-0.035202,-0.025182
which is R.A. +357.982 Decl. -1.443
missing R.A. +356.445 Decl. -1.525 (ibex-sun)
error is R.A. +1.537 Decl. +0.082
for a total 1.538 deg
ibex_rotate -o -u 0.999063,-0.035202,-0.025182 -w ibex-sun -t 2024/03:20:23:42:44
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.999063,-0.035202,-0.025182
which is R.A. +357.982 Decl. -1.443
missing R.A. +0.477 Decl. +0.224 (ibex-sun)
error is R.A. +357.505 Decl. +1.667
for a total 3.001 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0642 apogee:
ibex_rotate -o -u 0.99993,0.010454,-0.005515 -w ibex-sun -t 2024/03:21:07:16:25
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.999930,+0.010454,-0.005515
which is R.A. +0.599 Decl. -0.316
missing R.A. +0.750 Decl. +0.328 (ibex-sun)
error is R.A. +0.151 Decl. +0.644
for a total 0.662 deg
ibex_rotate -o -u 0.99993,0.010454,-0.005515 -w ibex-sun -t 2024-03-26T01:42:29
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.999930,+0.010454,-0.005515
which is R.A. +0.599 Decl. -0.316
missing R.A. +5.180 Decl. +2.260 (ibex-sun)
error is R.A. +4.581 Decl. +2.576
for a total 5.255 deg
There is no overlap with orbit 0640 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492