Hi all,
I have looked at the orbit 0647 ATS file, IBEX_2024_126_o0647a_v001.scr and I approve.
The constraint violations in IBEX_2024_126_o0647a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2024_126_o0647a_v001.scr match those in the STF, IBEX_2024_126_o0647a_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_126_o0647a_v001.oef and as verified with ibex_orbit.
There is 1 star tracker outage this orbit. Outage begins at 2024-05-14 19:58:14 and lasts for 6.1 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit647_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 0646 left us pointing in safe directions for the orbit 0647 arc A ascending and descending sequences:
ibex_rotate -o -u 0.728395,0.632159,0.264227 -w ibex-sun -t 2024/05:06:08:57:25
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.728395,+0.632159,+0.264227
which is R.A. +40.954 Decl. +15.321
missing R.A. +43.499 Decl. +16.594 (ibex-sun)
error is R.A. +2.545 Decl. +1.273
for a total 2.758 deg
ibex_rotate -o -u 0.728395,0.632159,0.264227 -w ibex-sun -t 2024/05:09:23:13:26
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.728395,+0.632159,+0.264227
which is R.A. +40.954 Decl. +15.321
missing R.A. +47.026 Decl. +17.613 (ibex-sun)
error is R.A. +6.072 Decl. +2.292
for a total 6.257 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 0.674372,0.681305,0.284685 -w ibex-sun -t 2024/05:10:00:56:34
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.674372,+0.681305,+0.284685
which is R.A. +45.293 Decl. +16.540
missing R.A. +47.097 Decl. +17.632 (ibex-sun)
error is R.A. +1.804 Decl. +1.092
for a total 2.041 deg
ibex_rotate -o -u 0.674372,0.681305,0.284685 -w ibex-sun -t 2024/05:10:02:31:40
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.674372,+0.681305,+0.284685
which is R.A. +45.293 Decl. +16.540
missing R.A. +47.162 Decl. +17.651 (ibex-sun)
error is R.A. +1.869 Decl. +1.111
for a total 2.104 deg
ibex_rotate -o -u 0.674372,0.681305,0.284685 -w ibex-sun -t 2024/05:14:12:13:50
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.674372,+0.681305,+0.284685
which is R.A. +45.293 Decl. +16.540
missing R.A. +51.507 Decl. +18.761 (ibex-sun)
error is R.A. +6.214 Decl. +2.221
for a total 6.324 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0648 apogee:
ibex_rotate -o -u 0.614591,0.727296,0.305479 -w ibex-sun -t 2024/05:14:14:24:27
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.614591,+0.727296,+0.305479
which is R.A. +49.801 Decl. +17.787
missing R.A. +51.593 Decl. +18.778 (ibex-sun)
error is R.A. +1.792 Decl. +0.991
for a total 1.969 deg
ibex_rotate -o -u 0.614591,0.727296,0.305479 -w ibex-sun -t 2024-05-19T12:12:21
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.614591,+0.727296,+0.305479
which is R.A. +49.801 Decl. +17.787
missing R.A. +56.437 Decl. +19.881 (ibex-sun)
error is R.A. +6.636 Decl. +2.094
for a total 6.620 deg
There is no overlap with orbit 0646 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492