Hi all,
I have looked at the orbit 0615 ATS file, IBEX_2023_201_o0615a_v001.scr and I approve.
The constraint violations in IBEX_2023_201_o0615a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2023_201_o0615a_v001.scr match those in the STF, IBEX_2023_201_o0615a_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_201_o0615a_v001.oef and as verified
with ibex_orbit.
There are no star tracker outages this orbit.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit615_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 0614 left us pointing in safe directions for the orbit 0615 arc A ascending and descending sequences:
ibex_rotate -o -u -0.414354,0.838566,0.35372 -w ibex-sun -t 2023/07:20:12:09:43
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.414354,+0.838566,+0.353720
which is R.A. +116.295 Decl. +20.715
missing R.A. +119.267 Decl. +20.695 (ibex-sun)
error is R.A. +2.972 Decl. +0.020
for a total 2.780 deg
ibex_rotate -o -u -0.414354,0.838566,0.35372 -w ibex-sun -t 2023/07:24:02:42:50
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.414354,+0.838566,+0.353720
which is R.A. +116.295 Decl. +20.715
missing R.A. +122.782 Decl. +20.036 (ibex-sun)
error is R.A. +6.487 Decl. +0.679
for a total 6.118 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 -0.481089,0.80822,0.339608 -w ibex-sun -t 2023/07:24:04:25:58
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.481089,+0.808220,+0.339608
which is R.A. +120.763 Decl. +19.853
missing R.A. +122.853 Decl. +20.022 (ibex-sun)
error is R.A. +2.090 Decl. +0.169
for a total 1.972 deg
ibex_rotate -o -u -0.481089,0.80822,0.339608 -w ibex-sun -t 2023/07:24:06:01:04
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.481089,+0.808220,+0.339608
which is R.A. +120.763 Decl. +19.853
missing R.A. +122.920 Decl. +20.009 (ibex-sun)
error is R.A. +2.157 Decl. +0.156
for a total 2.034 deg
ibex_rotate -o -u -0.481089,0.80822,0.339608 -w ibex-sun -t 2023/07:28:15:43:39
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.481089,+0.808220,+0.339608
which is R.A. +120.763 Decl. +19.853
missing R.A. +127.392 Decl. +19.020 (ibex-sun)
error is R.A. +6.629 Decl. +0.833
for a total 6.306 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0616 apogee:
ibex_rotate -o -u -0.546425,0.771944,0.324842 -w ibex-sun -t 2023/07:28:18:22:05
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.546425,+0.771944,+0.324842
which is R.A. +125.293 Decl. +18.956
missing R.A. +127.500 Decl. +18.990 (ibex-sun)
error is R.A. +2.207 Decl. +0.034
for a total 2.087 deg
ibex_rotate -o -u -0.546425,0.771944,0.324842 -w ibex-sun -t 2023-08-02T14:32:23
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.546425,+0.771944,+0.324842
which is R.A. +125.293 Decl. +18.956
missing R.A. +132.087 Decl. +17.850 (ibex-sun)
error is R.A. +6.794 Decl. +1.106
for a total 6.540 deg
There is no overlap with orbit 0614 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492