IBEX_2017_162_o0370a_v001.scr,

and I approve.

The only constraint violations in

IBEX_2017_162_o0370a_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_162_o0370a_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_162_o0370a_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  The outage starts about 4 hours before perigee and ends about 1/2 hour after perigee.  No despinning should be required due to this outage.

There is one moon in Lo FOV session in arc A.  The ATS start time is about 5 1/2 hours after that in the OEF and the ATS end time is 2+ hours after 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_Orbit370_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 inertial maneuver at perigee of orbit 369 left us pointing in safe directions for the orbit 370 arc A ascending and descending sequences:

ibex_rotate -o -u 0.196946,0.903278,0.381183 -w ibex-sun -t 2017/06:12:08:20:00

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.196946,+0.903278,+0.381183

 which is     R.A.  +77.700 Decl. +22.407

 missing      R.A.  +80.529 Decl. +23.131 (ibex-sun)

 error is     R.A.   +2.828 Decl.  +0.724

 for a total  2.707 deg

ibex_rotate -o -u 0.196946,0.903278,0.381183 -w ibex-sun -t 2017/06:15:20:03:14

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.196946,+0.903278,+0.381183

 which is     R.A.  +77.700 Decl. +22.407

 missing      R.A.  +84.230 Decl. +23.301 (ibex-sun)

 error is     R.A.   +6.530 Decl.  +0.894

 for a total  6.082 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 0.124848,0.914377,0.385133 -w ibex-sun -t 2017/06:15:21:46:22 

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.124848,+0.914377,+0.385133

 which is     R.A.  +82.225 Decl. +22.652

 missing      R.A.  +84.305 Decl. +23.305 (ibex-sun)

 error is     R.A.   +2.080 Decl.  +0.653

 for a total  2.023 deg

ibex_rotate -o -u 0.124848,0.914377,0.385133 -w ibex-sun -t 2017/06:15:23:21:28

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.124848,+0.914377,+0.385133

 which is     R.A.  +82.225 Decl. +22.652

 missing      R.A.  +84.375 Decl. +23.308 (ibex-sun)

 error is     R.A.   +2.150 Decl.  +0.656

 for a total  2.085 deg

ibex_rotate -o -u 0.124848,0.914377,0.385133 -w ibex-sun -t 2017/06:20:07:17:52

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.124848,+0.914377,+0.385133

 which is     R.A.  +82.225 Decl. +22.652

 missing      R.A.  +88.860 Decl. +23.454 (ibex-sun)

 error is     R.A.   +6.635 Decl.  +0.802

 for a total  6.157 deg

The inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 371 apogee:

ibex_rotate -o -u 0.049157,0.920145,0.388481 -w ibex-sun -t 2017/06:20:09:29:26

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.049157,+0.920145,+0.388481

 which is     R.A.  +86.942 Decl. +22.860

 missing      R.A.  +88.949 Decl. +23.454 (ibex-sun)

 error is     R.A.   +2.007 Decl.  +0.594

 for a total  1.938 deg

ibex_rotate -o -u 0.049157,0.920145,0.388481 -w ibex-sun -t 2017-06-25T09:37:42.214Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.049157,+0.920145,+0.388481

 which is     R.A.  +86.942 Decl. +22.860

 missing      R.A.  +94.168 Decl. +23.358 (ibex-sun)

 error is     R.A.   +7.226 Decl.  +0.498

 for a total  6.664 deg

No Lo O-mode.

There is no overlap with orbit 369 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken