IBEX_2022_356_o0592a_v001.scr,

and I approve.

The only constraint violations in

IBEX_2022_356_o0592a_v001.ccvr

are from the removal of the

ACT_SetSpinPulseProtectEnable Enable

commands (2) and the proximity of contacts; 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_356_o0592a_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  The outage starts near apogee and runs for almost 2 1/2 days.  Some despinning may be required due to this outage.

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

IBEX_Orbit592_Contacts.txt,

for all contacts (5).

We are not doing battery cell balancing this orbit; we'll do it again in the next orbit.

The inertial precession maneuver at perigee of orbit 591 leaves us pointing in safe directions for the orbit 592 arc A ascending and descending sequences:

ibex_rotate -o -u 0.031165,-0.913021,-0.406721 -w ibex-sun -t 2022/12:23:06:57:12

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.031165,-0.913021,-0.406721

 which is     R.A. +271.955 Decl. -23.999

 missing      R.A. +271.223 Decl. -23.453 (ibex-sun)

 error is     R.A.   +0.732 Decl.  +0.546

 for a total  0.865 deg

ibex_rotate -o -u 0.031165,-0.913021,-0.406721 -w ibex-sun -t 2022/12:26:10:50:40

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.031165,-0.913021,-0.406721

 which is     R.A. +271.955 Decl. -23.999

 missing      R.A. +274.768 Decl. -23.360 (ibex-sun)

 error is     R.A.   +2.813 Decl.  +0.639

 for a total  2.654 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 0.10958,-0.90831,-0.403689 -w ibex-sun -t 2022/12:26:12:33:48

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.109580,-0.908310,-0.403689

 which is     R.A. +276.879 Decl. -23.809

 missing      R.A. +274.846 Decl. -23.357 (ibex-sun)

 error is     R.A.   +2.033 Decl.  +0.452

 for a total  1.917 deg

ibex_rotate -o -u 0.10958,-0.90831,-0.403689 -w ibex-sun -t 2022/12:26:14:08:54

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.109580,-0.908310,-0.403689

 which is     R.A. +276.879 Decl. -23.809

 missing      R.A. +274.918 Decl. -23.354 (ibex-sun)

 error is     R.A.   +1.961 Decl.  +0.455

 for a total  1.854 deg

ibex_rotate -o -u 0.10958,-0.90831,-0.403689 -w ibex-sun -t 2022/12:31:05:53:33

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.109580,-0.908310,-0.403689

 which is     R.A. +276.879 Decl. -23.809

 missing      R.A. +279.974 Decl. -23.102 (ibex-sun)

 error is     R.A.   +3.095 Decl.  +0.707

 for a total  2.926 deg

The inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 593 apogee:

ibex_rotate -o -u 0.188365,-0.897036,-0.399805 -w ibex-sun -t 2022/12:31:08:27:40

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. +280.095 Decl. -23.098 (ibex-sun)

 error is     R.A.   +1.764 Decl.  +0.468

 for a total  1.686 deg

ibex_rotate -o -u 0.188365,-0.897036,-0.399805 -w ibex-sun -t 2023-01-05T05:27:09.082Z

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. +285.566 Decl. -22.649 (ibex-sun)

 error is     R.A.   +3.707 Decl.  +0.917

 for a total  3.530 deg

Lo Normal mode for the entire orbit.

There is no overlap with orbit 591 commands by manual inspection or by checking at

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

Command Approval Checklist attached.

Ken