IBEX_2016_011_o0313a_v001.scr,

and I approve.

There are no constraint violations in

IBEX_2016_011_o0313a_v001.ccvr.

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

IBEX_2016_011_o0313a_v003.stf,

except that the ATS has an SSR_DUMP_NEW command.  This is expected as APL is being used for the dump pass.

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_2016_011_o0313a_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  It starts 2+ days before apogee and runs for almost 4 days.  Some despinning may be required due to this outage.

There is one moon in Lo FOV session in arc A.  The ATS start time is almost 11 hours after that in the OEF and the ATS end time is almost 9 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_Orbit313_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 312 left us pointing in safe directions for the orbit 313 arc A ascending and descending sequences:

ibex_rotate -o -u 0.357338,-0.81404,-0.457874 -w ibex-sun -t 2016/01:11:18:18:33

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.357338,-0.814040,-0.457874

 which is     R.A. +293.700 Decl. -27.250

 missing      R.A. +292.465 Decl. -21.846 (ibex-sun)

 error is     R.A.   +1.235 Decl.  +5.404

 for a total  5.520 deg

ibex_rotate -o -u 0.357338,-0.81404,-0.457874 -w ibex-sun -t 2016/01:15:15:27:30

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.357338,-0.814040,-0.457874

 which is     R.A. +293.700 Decl. -27.250

 missing      R.A. +296.608 Decl. -21.220 (ibex-sun)

 error is     R.A.   +2.908 Decl.  +6.030

 for a total  6.587 deg

The sun 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 -r +296.687 -d -21.206  -w ibex-sun -t 2016/01:15:17:15:38

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.418705,-0.832973,-0.361722

 which is     R.A. +296.687 Decl. -21.206

 missing      R.A. +296.687 Decl. -21.206 (ibex-sun)

 error is     R.A.   +0.000 Decl.  +0.000

 for a total  0.000 deg

ibex_rotate -o -r +296.687 -d -21.206  -w ibex-sun -t 2016/01:15:18:45:44

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.418705,-0.832973,-0.361722

 which is     R.A. +296.687 Decl. -21.206

 missing      R.A. +296.753 Decl. -21.194 (ibex-sun)

 error is     R.A.   +0.066 Decl.  +0.012

 for a total  0.063 deg

ibex_rotate -o -r +296.687 -d -21.206  -w ibex-sun -t 2016/01:19:15:42:00

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.418705,-0.832973,-0.361722

 which is     R.A. +296.687 Decl. -21.206

 missing      R.A. +300.861 Decl. -20.398 (ibex-sun)

 error is     R.A.   +4.174 Decl.  +0.808

 for a total  3.985 deg

The inertial maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 314 apogee:

ibex_rotate -o -u 0.499151,-0.751795,-0.430873 -w ibex-sun -t 2016/01:19:17:45:53

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.499151,-0.751795,-0.430873

 which is     R.A. +303.582 Decl. -25.523

 missing      R.A. +300.957 Decl. -20.379 (ibex-sun)

 error is     R.A.   +2.625 Decl.  +5.144

 for a total  5.683 deg

ibex_rotate -o -u 0.499151,-0.751795,-0.430873 -w ibex-sun -t 2016-01-24T16:26:00.310Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.499151,-0.751795,-0.430873

 which is     R.A. +303.582 Decl. -25.523

 missing      R.A. +306.221 Decl. -19.310 (ibex-sun)

 error is     R.A.   +2.639 Decl.  +6.213

 for a total  6.674 deg

Lo O-mode in arc B (plan 6,7,1,1).  O-mode timing matches that specified in the ISN season memo.  There is more than 1 hour between the end of the ascending sequence and the start of O-mode and also more than an hour after O-mode ends and the start of the descending sequence.

There is no overlap with orbit 312 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken