Hi all,
I have looked at the orbit 0617 ATS file, IBEX_2023_219_o0617a_v001.scr and I approve.
The constraint violations in IBEX_2023_219_o0617a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2023_219_o0617a_v001.scr match those in the STF, IBEX_2023_219_o0617a_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_2023_219_o0617a_v001.oef and as verified
with ibex_orbit.
No star tracker outage this orbit.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit617_Contacts.txt for all contacts (3).
No Battery Balancing this orbit.
The Inertial maneuver at perigee of orbit 0616 left us pointing in safe directions for the orbit 0617 arc A ascending and descending sequences:
ibex_rotate -o -u -0.665097,0.68868,0.288731 -w ibex-sun -t 2023/08:07:13:27:49
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.665097,+0.688680,+0.288731
which is R.A. +134.002 Decl. +16.782
missing R.A. +136.940 Decl. +16.467 (ibex-sun)
error is R.A. +2.938 Decl. +0.315
for a total 2.833 deg
ibex_rotate -o -u -0.665097,0.68868,0.288731 -w ibex-sun -t 2023/08:11:04:09:55
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.665097,+0.688680,+0.288731
which is R.A. +134.002 Decl. +16.782
missing R.A. +140.284 Decl. +15.494 (ibex-sun)
error is R.A. +6.282 Decl. +1.288
for a total 6.170 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 -0.719652,0.640917,0.26707 -w ibex-sun -t 2023/08:11:05:53:03
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.719652,+0.640917,+0.267070
which is R.A. +138.312 Decl. +15.490
missing R.A. +140.352 Decl. +15.474 (ibex-sun)
error is R.A. +2.040 Decl. +0.016
for a total 1.966 deg
ibex_rotate -o -u -0.719652,0.640917,0.26707 -w ibex-sun -t 2023/08:11:07:28:09
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.719652,+0.640917,+0.267070
which is R.A. +138.312 Decl. +15.490
missing R.A. +140.415 Decl. +15.455 (ibex-sun)
error is R.A. +2.103 Decl. +0.035
for a total 2.027 deg
ibex_rotate -o -u -0.719652,0.640917,0.26707 -w ibex-sun -t 2023/08:15:18:27:10
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.719652,+0.640917,+0.267070
which is R.A. +138.312 Decl. +15.490
missing R.A. +144.743 Decl. +14.065 (ibex-sun)
error is R.A. +6.431 Decl. +1.425
for a total 6.379 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0618 apogee:
ibex_rotate -o -u -0.770887,0.58794,0.24507 -w ibex-sun -t 2023/08:15:21:14:05
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.770887,+0.587940,+0.245070
which is R.A. +142.668 Decl. +14.186
missing R.A. +144.854 Decl. +14.023 (ibex-sun)
error is R.A. +2.186 Decl. +0.163
for a total 2.126 deg
ibex_rotate -o -u -0.770887,0.58794,0.24507 -w ibex-sun -t 2023-08-20T17:18:15
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.770887,+0.587940,+0.245070
which is R.A. +142.668 Decl. +14.186
missing R.A. +149.231 Decl. +12.521 (ibex-sun)
error is R.A. +6.563 Decl. +1.665
for a total 6.599 deg
There is no overlap with orbit 0616 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492