Hi all,
I have looked at the orbit 0612 ATS file, IBEX_2023_173_o0612a_v001.scr and I approve.
The constraint violations in IBEX_2023_173_o0612a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2023_173_o0612a_v001.scr match those in the STF, IBEX_2023_173_o0612a_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_173_o0612a_v001.oef and as verified
with ibex_orbit.
There is 1 star tracker outage this orbit ~9 hours after the perigee maneuver and lasting ~9 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit612_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 0611 left us pointing in safe directions for the orbit 0612 arc A ascending and descending sequences:
ibex_rotate -o -u 0.030138,0.920624,0.389285 -w ibex-sun -t 2023/06:22:23:34:11
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.030138,+0.920624,+0.389285
which is R.A. +88.125 Decl. +22.910
missing R.A. +91.039 Decl. +23.413 (ibex-sun)
error is R.A. +2.914 Decl. +0.503
for a total 2.726 deg
ibex_rotate -o -u 0.030138,0.920624,0.389285 -w ibex-sun -t 2023/06:26:15:29:28
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.030138,+0.920624,+0.389285
which is R.A. +88.125 Decl. +22.910
missing R.A. +94.808 Decl. +23.373 (ibex-sun)
error is R.A. +6.683 Decl. +0.463
for a total 6.162 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 -0.044905,0.920464,0.388239 -w ibex-sun -t 2023/06:26:17:12:36
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.044905,+0.920464,+0.388239
which is R.A. +92.793 Decl. +22.845
missing R.A. +94.883 Decl. +23.372 (ibex-sun)
error is R.A. +2.091 Decl. +0.527
for a total 1.994 deg
ibex_rotate -o -u -0.044905,0.920464,0.388239 -w ibex-sun -t 2023/06:26:18:47:42
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.044905,+0.920464,+0.388239
which is R.A. +92.793 Decl. +22.845
missing R.A. +94.953 Decl. +23.371 (ibex-sun)
error is R.A. +2.160 Decl. +0.526
for a total 2.055 deg
ibex_rotate -o -u -0.044905,0.920464,0.388239 -w ibex-sun -t 2023/07:01:05:43:33
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.044905,+0.920464,+0.388239
which is R.A. +92.793 Decl. +22.845
missing R.A. +99.671 Decl. +23.154 (ibex-sun)
error is R.A. +6.878 Decl. +0.309
for a total 6.338 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0613 apogee:
ibex_rotate -o -u -0.122107,0.914177,0.386486 -w ibex-sun -t 2023/07:01:08:26:59
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.122107,+0.914176,+0.386486
which is R.A. +97.608 Decl. +22.736
missing R.A. +99.786 Decl. +23.143 (ibex-sun)
error is R.A. +2.178 Decl. +0.407
for a total 2.046 deg
ibex_rotate -o -u -0.122107,0.914177,0.386486 -w ibex-sun -t 2023-07-06T05:59:40
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.122107,+0.914176,+0.386486
which is R.A. +97.608 Decl. +22.736
missing R.A. +104.731 Decl. +22.762 (ibex-sun)
error is R.A. +7.123 Decl. +0.026
for a total 6.569 deg
There is no overlap with orbit 0611 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492