Hi all,
I have looked at the orbit 0656 ATS file, IBEX_2024_207_o0656a_v001.scr and I approve.
The constraint violations in IBEX_2024_207_o0656a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2024_207_o0656a_v001.scr match those in the STF, IBEX_2024_207_o0656a_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_207_o0656a_v001.oef
and as verified with ibex_orbit.
There is 1 star tracker outage this orbit. Outage begins at 2024-08-03 22:59:33 and lasts for 3.6 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit656_Contacts.txt for all contacts (3).
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 0655 left us pointing in safe directions for the orbit 0656 arc A ascending and descending sequences:
ibex_rotate -o -u -0.506032,0.794893,0.334777 -w ibex-sun -t 2024/07:26:00:59:09
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.506032,+0.794893,+0.334777
which is R.A. +122.481 Decl. +19.559
missing R.A. +125.490 Decl. +19.423 (ibex-sun)
error is R.A. +3.009 Decl. +0.136
for a total 2.840 deg
ibex_rotate -o -u -0.506032,0.794893,0.334777 -w ibex-sun -t 2024/07:29:15:14:47
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.506032,+0.794893,+0.334777
which is R.A. +122.481 Decl. +19.559
missing R.A. +128.933 Decl. +18.653 (ibex-sun)
error is R.A. +6.452 Decl. +0.906
for a total 6.163 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 -0.569686,0.757869,0.31795 -w ibex-sun -t 2024/07:29:16:57:55
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.569686,+0.757869,+0.317950
which is R.A. +126.932 Decl. +18.539
missing R.A. +129.004 Decl. +18.637 (ibex-sun)
error is R.A. +2.072 Decl. +0.098
for a total 1.966 deg
ibex_rotate -o -u -0.569686,0.757869,0.31795 -w ibex-sun -t 2024/07:29:18:33:01
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.569686,+0.757869,+0.317950
which is R.A. +126.932 Decl. +18.539
missing R.A. +129.069 Decl. +18.621 (ibex-sun)
error is R.A. +2.137 Decl. +0.082
for a total 2.027 deg
ibex_rotate -o -u -0.569686,0.757869,0.31795 -w ibex-sun -t 2024/08:03:04:51:15
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.569686,+0.757869,+0.317950
which is R.A. +126.932 Decl. +18.539
missing R.A. +133.495 Decl. +17.474 (ibex-sun)
error is R.A. +6.563 Decl. +1.065
for a total 6.331 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0657 apogee:
ibex_rotate -o -u -0.631176,0.715173,0.30024 -w ibex-sun -t 2024/08:03:07:02:27
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.631176,+0.715173,+0.300240
which is R.A. +131.430 Decl. +17.472
missing R.A. +133.585 Decl. +17.446 (ibex-sun)
error is R.A. +2.155 Decl. +0.026
for a total 2.056 deg
ibex_rotate -o -u -0.631176,0.715173,0.30024 -w ibex-sun -t 2024-08-08T04:27:19
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.631176,+0.715173,+0.300240
which is R.A. +131.430 Decl. +17.472
missing R.A. +138.152 Decl. +16.154 (ibex-sun)
error is R.A. +6.722 Decl. +1.318
for a total 6.568 deg
There is no overlap with orbit 0655 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492