Hi all,
I have looked at the orbit 0655 ATS file, IBEX_2024_198_o0655a_v001.scr and I approve.
The constraint violations in IBEX_2024_198_o0655a_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands. The violations are acceptable.
The PL commands in IBEX_2024_198_o0655a_v001.scr match those in the STF, IBEX_2024_198_o0655a_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_198_o0655a_v001.oef
and as verified with ibex_orbit.
There are 2 star tracker outages this orbit. Outage begins at 2024-07-17 19:39:02 and lasts for 33.5 hours. Outage begins at 2024-07-25 17:45:05 and lasts for 3.4 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit655_Contacts.txt for all contacts (3).
No Battery Balancing this orbit.
The Inertial maneuver at perigee of orbit 0654 left us pointing in safe directions for the orbit 0655 arc A ascending and descending sequences:
ibex_rotate -o -u -0.372876,0.854863,0.360795 -w ibex-sun -t 2024/07:17:02:48:36
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.372876,+0.854863,+0.360795
which is R.A. +113.566 Decl. +21.149
missing R.A. +116.594 Decl. +21.170 (ibex-sun)
error is R.A. +3.028 Decl. +0.021
for a total 2.824 deg
ibex_rotate -o -u -0.372876,0.854863,0.360795 -w ibex-sun -t 2024/07:20:13:57:01
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.372876,+0.854863,+0.360795
which is R.A. +113.566 Decl. +21.149
missing R.A. +119.996 Decl. +20.596 (ibex-sun)
error is R.A. +6.430 Decl. +0.553
for a total 6.033 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 -0.439761,0.827836,0.348278 -w ibex-sun -t 2024/07:20:15:40:09
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.439761,+0.827836,+0.348278
which is R.A. +117.978 Decl. +20.382
missing R.A. +120.068 Decl. +20.583 (ibex-sun)
error is R.A. +2.090 Decl. +0.201
for a total 1.968 deg
ibex_rotate -o -u -0.439761,0.827836,0.348278 -w ibex-sun -t 2024/07:20:17:15:15
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.439761,+0.827836,+0.348278
which is R.A. +117.978 Decl. +20.382
missing R.A. +120.134 Decl. +20.571 (ibex-sun)
error is R.A. +2.156 Decl. +0.189
for a total 2.029 deg
ibex_rotate -o -u -0.439761,0.827836,0.348278 -w ibex-sun -t 2024/07:25:01:10:02
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.439761,+0.827836,+0.348278
which is R.A. +117.978 Decl. +20.382
missing R.A. +124.557 Decl. +19.664 (ibex-sun)
error is R.A. +6.579 Decl. +0.718
for a total 6.223 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0656 apogee:
ibex_rotate -o -u -0.506032,0.794893,0.334777 -w ibex-sun -t 2024/07:25:03:18:44
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. +124.648 Decl. +19.641 (ibex-sun)
error is R.A. +2.167 Decl. +0.082
for a total 2.043 deg
ibex_rotate -o -u -0.506032,0.794893,0.334777 -w ibex-sun -t 2024-07-30T02:47:47
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. +129.408 Decl. +18.541 (ibex-sun)
error is R.A. +6.927 Decl. +1.018
for a total 6.625 deg
There is no overlap with orbit 0654 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492