Hi all,
I have looked at the orbit 0665 ATS file, IBEX_2024_290_o0665a_v001.scr and I approve.
The constraint violations in IBEX_2024_290_0665_v001.ccvr are from the removal of the ACT_SetSpinPulseProtectEnable Enable commands and the battery charge dropping during the Eclipse. The violations
are acceptable.
The PL commands in IBEX_2024_290_o0665a_v001.scr match those in the STF, IBEX_2024_290_o0665a_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_290_o0665a_v001.oef
and as verified with ibex_orbit.
There is 1 star tracker outage this orbit. Outage begins at 2024-10-16 14:40:04 and lasts for 85.4 hours.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file, IBEX_Orbit665_Contacts.txt for all contacts (3).
Eclipse flag is set on 1.5 hours before the eclipse begins at 2024-10-25 12:13:01. Eclipse flag is set off 14.6 mins after the eclipse ends at 2024-10-25 13:22:24. These values match the eclipse
planning.
The Sun maneuver at perigee of orbit 0664 left us pointing in safe directions for the orbit 0665 arc A ascending and descending sequences:
ibex_rotate -o -r +200.840 -d -8.751 -w ibex-sun -t 2024/10:15:18:22:28
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.923698,-0.351618,-0.152141
which is R.A. +200.840 Decl. -8.751
missing R.A. +200.840 Decl. -8.751 (ibex-sun)
error is R.A. +0.000 Decl. +0.000
for a total 0.000 deg
ibex_rotate -o -r +200.840 -d -8.751 -w ibex-sun -t 2024/10:16:16:02:06
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.923698,-0.351618,-0.152141
which is R.A. +200.840 Decl. -8.751
missing R.A. +201.715 Decl. -9.131 (ibex-sun)
error is R.A. +0.875 Decl. +0.380
for a total 0.944 deg
ibex_rotate -o -r +200.840 -d -8.751 -w ibex-sun -t 2024/10:20:10:21:47
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.923698,-0.351618,-0.152141
which is R.A. +200.840 Decl. -8.751
missing R.A. +205.185 Decl. -10.432 (ibex-sun)
error is R.A. +4.345 Decl. +1.681
for a total 4.602 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 -0.904295,-0.387731,-0.178648 -w ibex-sun -t 2024/10:20:12:04:55
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.904295,-0.387731,-0.178648
which is R.A. +203.208 Decl. -10.291
missing R.A. +205.252 Decl. -10.456 (ibex-sun)
error is R.A. +2.044 Decl. +0.165
for a total 2.017 deg
ibex_rotate -o -u -0.904295,-0.387731,-0.178648 -w ibex-sun -t 2024/10:20:13:40:01
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.904295,-0.387731,-0.178648
which is R.A. +203.208 Decl. -10.291
missing R.A. +205.313 Decl. -10.479 (ibex-sun)
error is R.A. +2.105 Decl. +0.188
for a total 2.079 deg
ibex_rotate -o -u -0.904295,-0.387731,-0.178648 -w ibex-sun -t 2024/10:25:03:26:48
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.904295,-0.387731,-0.178648
which is R.A. +203.208 Decl. -10.291
missing R.A. +209.677 Decl. -12.095 (ibex-sun)
error is R.A. +6.469 Decl. +1.803
for a total 6.597 deg
The Inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 0666 apogee:
ibex_rotate -o -u -0.866903,-0.453726,-0.206426 -w ibex-sun -t 2024/10:25:05:26:55
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.866903,-0.453726,-0.206426
which is R.A. +207.627 Decl. -11.913
missing R.A. +209.761 Decl. -12.128 (ibex-sun)
error is R.A. +2.134 Decl. +0.215
for a total 2.098 deg
ibex_rotate -o -u -0.866903,-0.453726,-0.206426 -w ibex-sun -t 2024-10-30T07:20:15
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.866903,-0.453726,-0.206426
which is R.A. +207.627 Decl. -11.913
missing R.A. +214.650 Decl. -13.820 (ibex-sun)
error is R.A. +7.024 Decl. +1.907
for a total 7.107 deg
There is no overlap with orbit 0664 commands.
Command Approval Checklist is attached.
Carol
--
Carol Weaver
University of New Hampshire
503-902-8492