Hi all,
I have looked at the orbit 0649 ATS file, IBEX_2024_144_o0649a_v001.scr and I approve.
The constraint violations in IBEX_2024_144_o0649a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2024_144_o0649a_v001.scr match those in the STF, IBEX_2024_144_o0649a_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_144_o0649a_v001.oef and as verified
with ibex_orbit.
There is 1 star tracker outage this orbit. Outage begins at 2024-06-01 18:04:24 and lasts for 5.1 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit649_Contacts.txt for all contacts (3).
No Battery Balancing this orbit.
The Inertial maneuver at perigee of orbit 0648 left us pointing in safe directions for the orbit 0649 arc A ascending and descending sequences:
ibex_rotate -o -u 0.489499,0.803598,0.338557 -w ibex-sun -t 2024/05:24:11:12:03
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. +61.385 Decl. +20.815 (ibex-sun)
error is R.A. +2.732 Decl. +1.026
for a total 2.760 deg
ibex_rotate -o -u 0.489499,0.803598,0.338557 -w ibex-sun -t 2024/05:27:22:14:47
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. +64.893 Decl. +21.447 (ibex-sun)
error is R.A. +6.240 Decl. +1.658
for a total 6.071 deg
[carolweav@ena v01]$
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 0.424546,0.83455,0.351123 -w ibex-sun -t 2024/05:27:23:57:55
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.424546,+0.834550,+0.351123
which is R.A. +63.037 Decl. +20.556
missing R.A. +64.967 Decl. +21.460 (ibex-sun)
error is R.A. +1.930 Decl. +0.904
for a total 2.016 deg
ibex_rotate -o -u 0.424546,0.83455,0.351123 -w ibex-sun -t 2024/05:28:01:33:01
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.424546,+0.834550,+0.351123
which is R.A. +63.037 Decl. +20.556
missing R.A. +65.035 Decl. +21.471 (ibex-sun)
error is R.A. +1.998 Decl. +0.915
for a total 2.078 deg
ibex_rotate -o -u 0.424546,0.83455,0.351123 -w ibex-sun -t 2024/06:01:08:22:43
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.424546,+0.834550,+0.351123
which is R.A. +63.037 Decl. +20.556
missing R.A. +69.464 Decl. +22.113 (ibex-sun)
error is R.A. +6.427 Decl. +1.557
for a total 6.185 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0650 apogee:
ibex_rotate -o -u 0.355024,0.861268,0.36356 -w ibex-sun -t 2024/06:01:10:24:58
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.355024,+0.861268,+0.363560
which is R.A. +67.598 Decl. +21.319
missing R.A. +69.549 Decl. +22.121 (ibex-sun)
error is R.A. +1.951 Decl. +0.802
for a total 1.982 deg
ibex_rotate -o -u 0.355024,0.861268,0.36356 -w ibex-sun -t 2024-06-06T09:02:50
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.355024,+0.861268,+0.363560
which is R.A. +67.598 Decl. +21.319
missing R.A. +74.566 Decl. +22.700 (ibex-sun)
error is R.A. +6.968 Decl. +1.381
for a total 6.605 deg
There is no overlap with orbit 0648 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492