Hi all,
I have looked at the orbit 0657 ATS file, IBEX_2024_216_o0657a_v001.scr and I approve.
The constraint violations in IBEX_2024_216_o0657a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2024_216_o0657a_v001.scr match those in the STF, IBEX_2024_216_o0657a_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_216_o0657a_v001.oef
and as verified with ibex_orbit.
There is 1 star tracker outage this orbit. Outage begins at 2024-08-13 00:01:32 and lasts for 2.6 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit657_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 0656 left us pointing in safe directions for the orbit 0657 arc A ascending and descending sequences:
ibex_rotate -o -u -0.631176,0.715173,0.30024 -w ibex-sun -t 2024/08:04:04:39:29
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. +134.413 Decl. +17.187 (ibex-sun)
error is R.A. +2.983 Decl. +0.285
for a total 2.861 deg
ibex_rotate -o -u -0.631176,0.715173,0.30024 -w ibex-sun -t 2024/08:07:16:54:14
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. +137.690 Decl. +16.286 (ibex-sun)
error is R.A. +6.260 Decl. +1.186
for a total 6.106 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 -0.687203,0.670332,0.280013 -w ibex-sun -t 2024/08:07:18:37:22
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.687203,+0.670332,+0.280013
which is R.A. +135.712 Decl. +16.261
missing R.A. +137.758 Decl. +16.267 (ibex-sun)
error is R.A. +2.046 Decl. +0.006
for a total 1.964 deg
ibex_rotate -o -u -0.687203,0.670332,0.280013 -w ibex-sun -t 2024/08:07:20:12:28
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.687203,+0.670332,+0.280013
which is R.A. +135.712 Decl. +16.261
missing R.A. +137.822 Decl. +16.249 (ibex-sun)
error is R.A. +2.110 Decl. +0.012
for a total 2.025 deg
ibex_rotate -o -u -0.687203,0.670332,0.280013 -w ibex-sun -t 2024/08:12:04:14:58
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.687203,+0.670332,+0.280013
which is R.A. +135.712 Decl. +16.261
missing R.A. +142.053 Decl. +14.943 (ibex-sun)
error is R.A. +6.341 Decl. +1.318
for a total 6.248 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0658 apogee:
ibex_rotate -o -u -0.739924,0.620716,0.259274 -w ibex-sun -t 2024/08:12:06:24:27
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.739924,+0.620716,+0.259274
which is R.A. +140.007 Decl. +15.027
missing R.A. +142.141 Decl. +14.912 (ibex-sun)
error is R.A. +2.134 Decl. +0.115
for a total 2.065 deg
ibex_rotate -o -u -0.739924,0.620716,0.259274 -w ibex-sun -t 2024-08-17T04:18:12
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.739924,+0.620716,+0.259274
which is R.A. +140.007 Decl. +15.027
missing R.A. +146.625 Decl. +13.437 (ibex-sun)
error is R.A. +6.618 Decl. +1.590
for a total 6.609 deg
There is no overlap with orbit 0656 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492