IBEX_2016_156_o0329a_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  It starts about six hours before perigee and runs for about 4 hours.

There is one moon in Lo FOV session in arc B.  The ATS start time is about 1 1/2 hours after that in the OEF and the ATS end time is about 2 3/4 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_Orbit329_Contacts.txt,

for the 2 contacts in the ATS.  The other contact will be a blind acq.

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

The inertial maneuver at perigee of orbit 328 left us pointing in safe directions for the orbit 329 arc A ascending and descending sequences:

ibex_rotate -o -u 0.304185,0.87784,0.369958 -w ibex-sun -t 2016/06:05:10:22:21

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.304185,+0.877840,+0.369958

 which is     R.A.  +70.888 Decl. +21.713

 missing      R.A.  +73.641 Decl. +22.574 (ibex-sun)

 error is     R.A.   +2.753 Decl.  +0.861

 for a total  2.691 deg

ibex_rotate -o -u 0.304185,0.87784,0.369958 -w ibex-sun -t 2016/06:09:04:05:49

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.304185,+0.877840,+0.369958

 which is     R.A.  +70.888 Decl. +21.713

 missing      R.A.  +77.605 Decl. +22.913 (ibex-sun)

 error is     R.A.   +6.717 Decl.  +1.200

 for a total  6.328 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 0.229805,0.89698,0.377647 -w ibex-sun -t 2016/06:09:05:48:57

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.229805,+0.896980,+0.377647

 which is     R.A.  +75.630 Decl. +22.188

 missing      R.A.  +77.680 Decl. +22.919 (ibex-sun)

 error is     R.A.   +2.050 Decl.  +0.731

 for a total  2.030 deg

ibex_rotate -o -u 0.229805,0.89698,0.377647 -w ibex-sun -t 2016/06:09:07:24:03

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.229805,+0.896980,+0.377647

 which is     R.A.  +75.630 Decl. +22.188

 missing      R.A.  +77.750 Decl. +22.925 (ibex-sun)

 error is     R.A.   +2.120 Decl.  +0.737

 for a total  2.092 deg

ibex_rotate -o -u 0.229805,0.89698,0.377647 -w ibex-sun -t 2016/06:13:20:46:33

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.229805,+0.896980,+0.377647

 which is     R.A.  +75.630 Decl. +22.188

 missing      R.A.  +82.432 Decl. +23.271 (ibex-sun)

 error is     R.A.   +6.802 Decl.  +1.083

 for a total  6.366 deg

The inertial maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 330 apogee:

ibex_rotate -o -u 0.151567,0.910711,0.384231 -w ibex-sun -t 2016/06:13:23:05:37

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.151567,+0.910711,+0.384231

 which is     R.A.  +80.551 Decl. +22.596

 missing      R.A.  +82.524 Decl. +23.275 (ibex-sun)

 error is     R.A.   +1.973 Decl.  +0.679

 for a total  1.940 deg

ibex_rotate -o -u 0.151567,0.910711,0.384231 -w ibex-sun -t 2016-06-18T23:50:53.562Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.151567,+0.910711,+0.384231

 which is     R.A.  +80.551 Decl. +22.596

 missing      R.A.  +87.791 Decl. +23.391 (ibex-sun)

 error is     R.A.   +7.240 Decl.  +0.795

 for a total  6.711 deg

No Lo O-mode.

There is no overlap with orbit 328 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken