IBEX_2017_073_o0360a_v001.scr,

and I approve.

The only constraint violations in

IBEX_2017_073_o0360a_v001.ccvr

are because we removed 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_073_o0360a_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_073_o0360a_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  The outage starts 3- days after apogee and runs for 20 hours.  Some despinning may be required due to this outage.

There is a moon in Lo FOV session in arc B.  The ATS start time is an hour before that in the OEF and the ATS end time is 3 1/2 hours before that in the OEF.  These differences are not unusual.

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

IBEX_Orbit360_Contacts.txt,

for all contacts (3).

No battery cell balancing this orbit; we'll do it again in the next orbit.

The inertial maneuver at perigee of orbit 359 left us pointing in safe directions for the orbit 360 arc A ascending and descending sequences:

ibex_rotate -o -u 0.996385,-0.073345,-0.04287 -w ibex-sun -t 2017/03:15:03:35:49

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. +354.972 Decl.  -2.195 (ibex-sun)

 error is     R.A.   +0.818 Decl.  +0.262

 for a total  0.858 deg

ibex_rotate -o -u 0.996385,-0.073345,-0.04287 -w ibex-sun -t 2017/03:18:16:36:04

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. +358.299 Decl.  -0.769 (ibex-sun)

 error is     R.A.   +2.509 Decl.  +1.688

 for a total  3.023 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 0.999349,-0.027722,-0.023089 -w ibex-sun -t 2017/03:18:18:19:12

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.999349,-0.027722,-0.023089

 which is     R.A. +358.411 Decl.  -1.323

 missing      R.A. +358.364 Decl.  -0.740 (ibex-sun)

 error is     R.A.   +0.047 Decl.  +0.583

 for a total  0.585 deg

ibex_rotate -o -u 0.999349,-0.027722,-0.023089 -w ibex-sun -t 2017/03:18:19:54:18

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.999349,-0.027722,-0.023089

 which is     R.A. +358.411 Decl.  -1.323

 missing      R.A. +358.424 Decl.  -0.714 (ibex-sun)

 error is     R.A.   +0.013 Decl.  +0.609

 for a total  0.610 deg

ibex_rotate -o -u 0.999349,-0.027722,-0.023089 -w ibex-sun -t 2017/03:23:03:58:34

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.999349,-0.027722,-0.023089

 which is     R.A. +358.411 Decl.  -1.323

 missing      R.A.   +2.251 Decl.  +0.998 (ibex-sun)

 error is     R.A. +356.160 Decl.  +2.321

 for a total  4.487 deg

The inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 361 apogee:

ibex_rotate -o -u 0.99989,0.014206,-0.004224 -w ibex-sun -t 2017/03:23:06:15:37

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.999890,+0.014206,-0.004224

 which is     R.A.   +0.814 Decl.  -0.242

 missing      R.A.   +2.335 Decl.  +1.033 (ibex-sun)

 error is     R.A.   +1.521 Decl.  +1.275

 for a total  1.984 deg

ibex_rotate -o -u 0.99989,0.014206,-0.004224 -w ibex-sun -t 2017-03-28T02:01:11.231Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.999890,+0.014206,-0.004224

 which is     R.A.   +0.814 Decl.  -0.242

 missing      R.A.   +6.856 Decl.  +2.936 (ibex-sun)

 error is     R.A.   +6.042 Decl.  +3.178

 for a total  6.825 deg

No Lo O-mode.

There is no overlap with orbit 359 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken