IBEX_2017_064_o0359a_v001.scr,

and I approve.

The only constraint violations in

IBEX_2017_064_o0359a_v001.ccvr

are from the removal of the

ACT_SetSpinPulseProtectEnable Enable

commands (2); the violations are expected.

The PL commands in the v001 ATS match those in the v003 STF,

IBEX_2017_064_o0359a_v003.stf.

Ascending and descending command sequences are consistent with each other and 15 Re ascending, the apogee maneuver time and 15 Re descending as determined from the OEF,

IBEX_2017_064_o0359a_v001.oef,

and as verified with ibex_orbit.

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

There is one moon in Lo FOV session in arc A.  The ATS and OEF start times are the same and the ATS end time is about 1 1/2 hours before that in the OEF.  Differences in timing are not unusual.

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

IBEX_Orbit359_Contacts.txt,

for all contacts (2).

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

The inertial maneuver at perigee of orbit 358 left us pointing in safe directions for the orbit 359 arc A ascending and descending sequences:

ibex_rotate -o -u 0.970309,-0.217672,-0.105448 -w ibex-sun -t 2017/03:05:23:50:56

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.970309,-0.217672,-0.105448

 which is     R.A. +347.356 Decl.  -6.053

 missing      R.A. +346.546 Decl.  -5.780 (ibex-sun)

 error is     R.A.   +0.810 Decl.  +0.273

 for a total  0.850 deg

ibex_rotate -o -u 0.970309,-0.217672,-0.105448 -w ibex-sun -t 2017/03:09:14:01:31

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.970309,-0.217672,-0.105448

 which is     R.A. +347.356 Decl.  -6.053

 missing      R.A. +349.945 Decl.  -4.361 (ibex-sun)

 error is     R.A.   +2.589 Decl.  +1.692

 for a total  3.084 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 0.986557,-0.14577,-0.073865 -w ibex-sun -t 2017/03:09:15:44:39

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.986557,-0.145770,-0.073865

 which is     R.A. +351.595 Decl.  -4.236

 missing      R.A. +350.010 Decl.  -4.332 (ibex-sun)

 error is     R.A.   +1.585 Decl.  +0.096

 for a total  1.583 deg

ibex_rotate -o -u 0.986557,-0.14577,-0.073865 -w ibex-sun -t 2017/03:09:17:19:45

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.986557,-0.145770,-0.073865

 which is     R.A. +351.595 Decl.  -4.236

 missing      R.A. +350.070 Decl.  -4.306 (ibex-sun)

 error is     R.A.   +1.525 Decl.  +0.070

 for a total  1.522 deg

ibex_rotate -o -u 0.986557,-0.14577,-0.073865 -w ibex-sun -t 2017/03:14:04:18:56

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.986557,-0.145770,-0.073865

 which is     R.A. +351.595 Decl.  -4.236

 missing      R.A. +354.042 Decl.  -2.553 (ibex-sun)

 error is     R.A.   +2.447 Decl.  +1.683

 for a total  2.966 deg

The inertial maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 360 apogee:

ibex_rotate -o -u 0.996385,-0.073345,-0.04287 -w ibex-sun -t 2017/03:14:06:39:09

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.996385,-0.073345,-0.042870

 which is     R.A. +355.790 Decl.  -2.457

 missing      R.A. +354.130 Decl.  -2.517 (ibex-sun)

 error is     R.A.   +1.660 Decl.  +0.060

 for a total  1.660 deg

ibex_rotate -o -u 0.996385,-0.073345,-0.04287 -w ibex-sun -t 2017-03-19T04:10:27.504Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.996385,-0.073345,-0.042870

 which is     R.A. +355.790 Decl.  -2.457

 missing      R.A. +358.735 Decl.  -0.574 (ibex-sun)

 error is     R.A.   +2.945 Decl.  +1.883

 for a total  3.495 deg

No Lo O-mode.

There is no overlap with orbit 358 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken