IBEX_2022_365_o0593a_v001.scr,

and I approve.

The only constraint violations in

IBEX_2022_365_o0593a_v001.ccvr

are from the removal of the

ACT_SetSpinPulseProtectEnable Enable

commands (2); the violations are expected.

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_2022_365_o0593a_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  The outage starts about 12 hours after apogee and runs for 2.5+ days.  Some despinning may be required due to this outage.

The ground station command sequences are correct and the timing and the bit rates match those in the contacts file,

IBEX_Orbit593_Contacts.txt,

for all contacts (2).

We are doing battery cell balancing and the balancing commands are correct and offset by enough time from other commands.

The inertial precession maneuver at perigee of orbit 592 leaves us pointing in safe directions for the orbit 593 arc A ascending and descending sequences:

ibex_rotate -o -u  0.188365,-0.897036,-0.399805 -w ibex-sun -t 2023/01:01:04:38:04

Quaternion    +0.000000,+0.000000,+0.000000,+0.000000

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.188365,-0.897036,-0.399805

 which is     R.A. +281.859 Decl. -23.566

 missing      R.A. +281.088 Decl. -23.066 (ibex-sun)

 error is     R.A.   +0.771 Decl.  +0.500

 for a total  0.867 deg

ibex_rotate -o -u  0.188365,-0.897036,-0.399805 -w ibex-sun -t 2023/01:04:17:54:50

Quaternion    +0.000000,+0.000000,+0.000000,+0.000000

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.188365,-0.897036,-0.399805

 which is     R.A. +281.859 Decl. -23.566

 missing      R.A. +285.047 Decl. -22.706 (ibex-sun)

 error is     R.A.   +3.188 Decl.  +0.860

 for a total  3.055 deg

The inertial precession maneuver at apogee leaves us pointing in safe directions at the time of the maneuver and for the arc B ascending and descending sequences:

ibex_rotate -o -u 0.266163,-0.880742,-0.391727 -w ibex-sun -t 2023/01:04:19:37:58

Quaternion    +0.000000,+0.000000,+0.000000,+0.000000

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.266163,-0.880742,-0.391727

 which is     R.A. +286.815 Decl. -23.062

 missing      R.A. +285.124 Decl. -22.698 (ibex-sun)

 error is     R.A.   +1.691 Decl.  +0.364

 for a total  1.600 deg

ibex_rotate -o -u 0.266163,-0.880742,-0.391727 -w ibex-sun -t 2023/01:04:21:13:04

Quaternion    +0.000000,+0.000000,+0.000000,+0.000000

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.266163,-0.880742,-0.391727

 which is     R.A. +286.815 Decl. -23.062

 missing      R.A. +285.196 Decl. -22.690 (ibex-sun)

 error is     R.A.   +1.619 Decl.  +0.372

 for a total  1.538 deg

ibex_rotate -o -u 0.266163,-0.880742,-0.391727 -w ibex-sun -t 2023/01:09:06:55:00

Quaternion    +0.000000,+0.000000,+0.000000,+0.000000

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.266163,-0.880742,-0.391727

 which is     R.A. +286.815 Decl. -23.062

 missing      R.A. +289.905 Decl. -22.159 (ibex-sun)

 error is     R.A.   +3.090 Decl.  +0.903

 for a total  2.992 deg

The inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 594 apogee:

ibex_rotate -o -u 0.343039,-0.85779,-0.38278 -w ibex-sun -t 2023/01:09:09:33:04

Quaternion    +0.000000,+0.000000,+0.000000,+0.000000

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.343039,-0.857790,-0.382780

 which is     R.A. +291.797 Decl. -22.506

 missing      R.A. +290.027 Decl. -22.147 (ibex-sun)

 error is     R.A.   +1.770 Decl.  +0.359

 for a total  1.676 deg

ibex_rotate -o -u 0.343039,-0.85779,-0.38278 -w ibex-sun -t 2023-01-14T04:32:50.325Z

Quaternion    +0.000000,+0.000000,+0.000000,+0.000000

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.343039,-0.857790,-0.382780

 which is     R.A. +291.797 Decl. -22.506

 missing      R.A. +295.334 Decl. -21.379 (ibex-sun)

 error is     R.A.   +3.537 Decl.  +1.127

 for a total  3.469 deg

Lo Normal mode for the entire orbit.

There is no overlap with orbit 592 commands by manual inspection or by checking at

http://ibex.unh.edu/cgi-bin/ats.cgi.

Command Approval Checklist attached.

Ken