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_138_o0568a_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage. The outage starts 5 hours after 15 Re descending and runs for 8+ hours. No despinning should 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_Orbit568_Contacts.txt,

for all contacts (3).

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

The inertial precession maneuver at perigee of orbit 567 leaves us pointing in safe directions for the orbit 568 arc A ascending and descending sequences:

ibex_rotate -o -u 0.579312,0.75141,0.315881 -w ibex-sun -t 2022/05:18:13:13:19

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

points axis +1.000000,+0.000000,+0.000000

towards ECI +0.579312,+0.751410,+0.315881

which is R.A. +52.369 Decl. +18.414

missing R.A. +54.974 Decl. +19.523 (ibex-sun)

error is R.A. +2.605 Decl. +1.109

for a total 2.702 deg

ibex_rotate -o -u 0.579312,0.75141,0.315881 -w ibex-sun -t 2022/05:22:01:07:38

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

points axis +1.000000,+0.000000,+0.000000

towards ECI +0.579312,+0.751410,+0.315881

which is R.A. +52.369 Decl. +18.414

missing R.A. +58.511 Decl. +20.292 (ibex-sun)

error is R.A. +6.142 Decl. +1.878

for a total 6.091 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 0.518289,0.78857,0.330959 -w ibex-sun -t 2022/05:22:02:50:46

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

points axis +1.000000,+0.000000,+0.000000

towards ECI +0.518289,+0.788570,+0.330959

which is R.A. +56.685 Decl. +19.327

missing R.A. +58.584 Decl. +20.307 (ibex-sun)

error is R.A. +1.899 Decl. +0.980

for a total 2.038 deg

ibex_rotate -o -u 0.518289,0.78857,0.330959 -w ibex-sun -t 2022/05:22:04:25:52

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

points axis +1.000000,+0.000000,+0.000000

towards ECI +0.518289,+0.788570,+0.330959

which is R.A. +56.685 Decl. +19.327

missing R.A. +58.652 Decl. +20.322 (ibex-sun)

error is R.A. +1.967 Decl. +0.995

for a total 2.101 deg

ibex_rotate -o -u 0.518289,0.78857,0.330959 -w ibex-sun -t 2022/05:26:11:35:14

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

points axis +1.000000,+0.000000,+0.000000

towards ECI +0.518289,+0.788570,+0.330959

which is R.A. +56.685 Decl. +19.327

missing R.A. +62.991 Decl. +21.135 (ibex-sun)

error is R.A. +6.306 Decl. +1.808

for a total 6.187 deg

The inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 569 apogee:

ibex_rotate -o -u 0.452191,0.821888,0.346445 -w ibex-sun -t 2022/05:26:14:17:21

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

points axis +1.000000,+0.000000,+0.000000

towards ECI +0.452191,+0.821888,+0.346445

which is R.A. +61.181 Decl. +20.270

missing R.A. +63.099 Decl. +21.149 (ibex-sun)

error is R.A. +1.918 Decl. +0.879

for a total 1.998 deg

ibex_rotate -o -u 0.452191,0.821888,0.346445 -w ibex-sun -t 2022-05-31T11:00:35.884Z

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

points axis +1.000000,+0.000000,+0.000000

towards ECI +0.452191,+0.821888,+0.346445

which is R.A. +61.181 Decl. +20.270

missing R.A. +68.040 Decl. +21.914 (ibex-sun)

error is R.A. +6.859 Decl. +1.644

for a total 6.606 deg

Lo Normal mode for the entire orbit.

There is no overlap with orbit 567 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken