Hi all,
I have looked at the orbit 0646 ATS file, IBEX_2024_117_o0646a_v001.scr and I approve.
The constraint violations in IBEX_2024_117_o0646a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2024_117_o0646a_v001.scr match those in the STF, IBEX_2024_117_o0646a_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_117_o0646a_v001.oef and as verified with ibex_orbit.
There is 1 star tracker outage this orbit. Outage begins at 2024-05-05 16:04:18 and lasts for 6.3 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit646_Contacts.txt for all contacts (3).
No Battery Balancing this orbit.
The Inertial maneuver at perigee of orbit 0645 left us pointing in safe directions for the orbit 0646 arc A ascending and descending sequences:
ibex_rotate -o -u 0.823456,0.524094,0.21736 -w ibex-sun -t 2024/04:27:10:18:01
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.823456,+0.524094,+0.217360
which is R.A. +32.475 Decl. +12.554
missing R.A. +34.940 Decl. +13.922 (ibex-sun)
error is R.A. +2.465 Decl. +1.368
for a total 2.762 deg
ibex_rotate -o -u 0.823456,0.524094,0.21736 -w ibex-sun -t 2024/04:30:22:25:52
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.823456,+0.524094,+0.217360
which is R.A. +32.475 Decl. +12.554
missing R.A. +38.318 Decl. +15.058 (ibex-sun)
error is R.A. +5.843 Decl. +2.504
for a total 6.201 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 0.77882,0.579331,0.240448 -w ibex-sun -t 2024/05:01:00:09:00
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.778820,+0.579331,+0.240448
which is R.A. +36.644 Decl. +13.913
missing R.A. +38.387 Decl. +15.081 (ibex-sun)
error is R.A. +1.743 Decl. +1.168
for a total 2.052 deg
ibex_rotate -o -u 0.77882,0.579331,0.240448 -w ibex-sun -t 2024/05:01:01:44:06
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.778820,+0.579331,+0.240448
which is R.A. +36.644 Decl. +13.913
missing R.A. +38.451 Decl. +15.102 (ibex-sun)
error is R.A. +1.807 Decl. +1.189
for a total 2.115 deg
ibex_rotate -o -u 0.77882,0.579331,0.240448 -w ibex-sun -t 2024/05:05:09:03:36
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.778820,+0.579331,+0.240448
which is R.A. +36.644 Decl. +13.913
missing R.A. +42.589 Decl. +16.369 (ibex-sun)
error is R.A. +5.945 Decl. +2.456
for a total 6.241 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0647 apogee:
ibex_rotate -o -u 0.728395,0.632159,0.264227 -w ibex-sun -t 2024/05:05:11:11:01
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. +42.670 Decl. +16.390 (ibex-sun)
error is R.A. +1.716 Decl. +1.069
for a total 1.967 deg
ibex_rotate -o -u 0.728395,0.632159,0.264227 -w ibex-sun -t 2024-05-10T10:43:10
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. +47.500 Decl. +17.745 (ibex-sun)
error is R.A. +6.546 Decl. +2.424
for a total 6.727 deg
There is no overlap with orbit 0645 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492