IBEX_2017_309_o0386a_v001.scr,

and I approve.

The only constraint violations in

IBEX_2017_309_o0386a_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 v002 STF,

IBEX_2017_309_o0386a_v002.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_309_o0386a_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  It starts near 15 Re descending in orbit 385 and runs for 1+ days.  Some despinning may be required due to this outage.

There is one moon in Lo FOV session in arc B.  The ATS start time is about 2 hours after that in the OEF and the ATS end time is about 2 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_Orbit386_Contacts.txt,

for all contacts (3).

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

The sun precession maneuver at perigee of orbit 385 left us pointing in safe directions for the orbit 386 arc A ascending and descending sequences:

ibex_rotate -o -r +220.166 -d -15.600 -w ibex-sun -t 2017/11:05:22:21:28

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.736029,-0.621244,-0.268920

 which is     R.A. +220.166 Decl. -15.600

 missing      R.A. +221.019 Decl. -15.901 (ibex-sun)

 error is     R.A.   +0.853 Decl.  +0.301

 for a total  0.875 deg

ibex_rotate -o -r +220.166 -d -15.600 -w ibex-sun -t 2017/11:09:14:36:44

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.736029,-0.621244,-0.268920

 which is     R.A. +220.166 Decl. -15.600

 missing      R.A. +224.576 Decl. -16.951 (ibex-sun)

 error is     R.A.   +4.410 Decl.  +1.351

 for a total  4.444 deg

The inertial 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 -0.704904,-0.646605,-0.29157 -w ibex-sun -t 2017/11:09:16:19:52

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.704904,-0.646605,-0.291570

 which is     R.A. +222.530 Decl. -16.952

 missing      R.A. +224.647 Decl. -16.970 (ibex-sun)

 error is     R.A.   +2.117 Decl.  +0.018

 for a total  2.025 deg

ibex_rotate -o -u -0.704904,-0.646605,-0.29157 -w ibex-sun -t 2017/11:09:17:54:58

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.704904,-0.646605,-0.291570

 which is     R.A. +222.530 Decl. -16.952

 missing      R.A. +224.713 Decl. -16.988 (ibex-sun)

 error is     R.A.   +2.183 Decl.  +0.036

 for a total  2.088 deg

ibex_rotate -o -u -0.704904,-0.646605,-0.29157 -w ibex-sun -t 2017/11:14:05:47:10

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.704904,-0.646605,-0.291570

 which is     R.A. +222.530 Decl. -16.952

 missing      R.A. +229.380 Decl. -18.189 (ibex-sun)

 error is     R.A.   +6.850 Decl.  +1.237

 for a total  6.646 deg

The inertial maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 387 apogee:

ibex_rotate -o -u -0.645818,-0.696712,-0.312269 -w ibex-sun -t 2017/11:14:08:15:43

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.645818,-0.696712,-0.312269

 which is     R.A. +227.171 Decl. -18.196

 missing      R.A. +229.493 Decl. -18.220 (ibex-sun)

 error is     R.A.   +2.322 Decl.  +0.024

 for a total  2.206 deg

ibex_rotate -o -u -0.645818,-0.696712,-0.312269 -w ibex-sun -t 2017-11-19T07:06:08.000Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.645818,-0.696712,-0.312269

 which is     R.A. +227.171 Decl. -18.196

 missing      R.A. +234.507 Decl. -19.462 (ibex-sun)

 error is     R.A.   +7.336 Decl.  +1.266

 for a total  7.057 deg

No Lo O-mode.

There is no overlap with orbit 385 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken