IBEX_2016_020_o0314a_v001.scr,

and I approve.

There are no constraint violations in

IBEX_2016_020_o0314a_v001.ccvr.

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

IBEX_2016_020_o0314a_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_020_o0314a_v001.oef,

and as verified with ibex_orbit.

There are two star tracker outages.  The first starts about 1 day after 15 Re ascending and runs for 3+ days.  The second starts at apogee and runs for 2+ days.  Some despinning may be required due to these outages.

There are no moon in Lo FOV sessions.

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

IBEX_Orbit314_Contacts.txt,

for all contacts (3).

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

The inertial maneuver at perigee of orbit 313 left us pointing in safe directions for the orbit 314 arc A ascending and descending sequences:

ibex_rotate -o -u 0.499151,-0.751795,-0.430873 -w ibex-sun -t 2016/01:20:15:40:32

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. +302.005 Decl. -20.199 (ibex-sun)

 error is     R.A.   +1.577 Decl.  +5.324

 for a total  5.519 deg

ibex_rotate -o -u 0.499151,-0.751795,-0.430873 -w ibex-sun -t 2016/01:24:14:52:02

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. +306.154 Decl. -19.325 (ibex-sun)

 error is     R.A.   +2.572 Decl.  +6.198

 for a total  6.637 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 +306.231 -d -19.307 -w ibex-sun -t 2016/01:24:16:40:10

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.557802,-0.761276,-0.330630

 which is     R.A. +306.231 Decl. -19.307

 missing      R.A. +306.231 Decl. -19.307 (ibex-sun)

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

 for a total  0.000 deg

ibex_rotate -o -r +306.231 -d -19.307 -w ibex-sun -t 2016/01:24:18:10:16

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.557802,-0.761276,-0.330630

 which is     R.A. +306.231 Decl. -19.307

 missing      R.A. +306.295 Decl. -19.292 (ibex-sun)

 error is     R.A.   +0.064 Decl.  +0.015

 for a total  0.062 deg

ibex_rotate -o -r +306.231 -d -19.307 -w ibex-sun -t 2016/01:28:17:27:06

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.557802,-0.761276,-0.330630

 which is     R.A. +306.231 Decl. -19.307

 missing      R.A. +310.375 Decl. -18.261 (ibex-sun)

 error is     R.A.   +4.144 Decl.  +1.046

 for a total  4.060 deg

The inertial maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 315 apogee:

ibex_rotate -o -u 0.630752,-0.668145,-0.394632 -w ibex-sun -t 2016/01:28:19:31:55

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.630752,-0.668145,-0.394632

 which is     R.A. +313.351 Decl. -23.243

 missing      R.A. +310.468 Decl. -18.238 (ibex-sun)

 error is     R.A.   +2.883 Decl.  +5.005

 for a total  5.685 deg

ibex_rotate -o -u 0.630752,-0.668145,-0.394632 -w ibex-sun -t 2016-02-02T16:23:56.140Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.630752,-0.668145,-0.394632

 which is     R.A. +313.351 Decl. -23.243

 missing      R.A. +315.526 Decl. -16.927 (ibex-sun)

 error is     R.A.   +2.175 Decl.  +6.316

 for a total  6.638 deg

Lo O-mode in arc A (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 313 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken