Hi all,
I have looked at the orbit 0648 ATS file, IBEX_2024_136_o0648a_v001.scr and I approve.
The constraint violations in IBEX_2024_136_o0648a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2024_136_o0648a_v001.scr match those in the STF, IBEX_2024_136_o0648a_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_136_o0648a_v001.oef and as verified
with ibex_orbit.
There is 1 star tracker outage this orbit. Outage begins at 2024-05-23 01:06:54 and lasts for 27.0 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit648_Contacts.txt for all contacts (3).
Battery Balancing is 90 minutes long, more than 2 hours away from payload descending macros, 11.742 hrs, and more than 15 minutes away from a maneuver, -452 mins.
The Inertial maneuver at perigee of orbit 0647 left us pointing in safe directions for the orbit 0648 arc A ascending and descending sequences:
ibex_rotate -o -u 0.614591,0.727296,0.305479 -w ibex-sun -t 2024/05:15:12:07:40
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. +52.433 Decl. +18.943 (ibex-sun)
error is R.A. +2.632 Decl. +1.156
for a total 2.752 deg
ibex_rotate -o -u 0.614591,0.727296,0.305479 -w ibex-sun -t 2024/05:19:00:39:15
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. +55.949 Decl. +19.772 (ibex-sun)
error is R.A. +6.148 Decl. +1.985
for a total 6.149 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 0.554399,0.767422,0.322034 -w ibex-sun -t 2024/05:19:02:22:23
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.554399,+0.767422,+0.322034
which is R.A. +54.155 Decl. +18.786
missing R.A. +56.022 Decl. +19.788 (ibex-sun)
error is R.A. +1.867 Decl. +1.002
for a total 2.027 deg
ibex_rotate -o -u 0.554399,0.767422,0.322034 -w ibex-sun -t 2024/05:19:03:57:29
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.554399,+0.767422,+0.322034
which is R.A. +54.155 Decl. +18.786
missing R.A. +56.089 Decl. +19.803 (ibex-sun)
error is R.A. +1.934 Decl. +1.017
for a total 2.089 deg
ibex_rotate -o -u 0.554399,0.767422,0.322034 -w ibex-sun -t 2024/05:23:11:15:27
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.554399,+0.767422,+0.322034
which is R.A. +54.155 Decl. +18.786
missing R.A. +60.442 Decl. +20.679 (ibex-sun)
error is R.A. +6.287 Decl. +1.893
for a total 6.213 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0649 apogee:
ibex_rotate -o -u 0.489499,0.803598,0.338557 -w ibex-sun -t 2024/05:24:06:32:15
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.489499,+0.803598,+0.338557
which is R.A. +58.653 Decl. +19.789
missing R.A. +61.198 Decl. +20.784 (ibex-sun)
error is R.A. +2.545 Decl. +0.995
for a total 2.586 deg
ibex_rotate -o -u 0.489499,0.803598,0.338557 -w ibex-sun -t 2024-05-28T09:47:53
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.489499,+0.803598,+0.338557
which is R.A. +58.653 Decl. +19.789
missing R.A. +65.390 Decl. +21.531 (ibex-sun)
error is R.A. +6.737 Decl. +1.742
for a total 6.539 deg
There is no overlap with orbit 0647 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492