IBEX_2016_319_o0347a_v001.scr,

and I approve.

The only constraint violations in

IBEX_2016_319_o0347a_v001.ccvr

are because we removed the

ACT_SetSpinPulseProtectEnable Enable

commands (2); the violations are expected.

The PL commands in the v001 ATS match those in the v002 STF,

IBEX_2016_319_o0347a_v002.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_319_o0347a_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  It starts at orbit 346 apogee and runs until about a day after 15 Re ascending.  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 3 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_Orbit347_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 346 left us pointing in safe directions for the orbit 347 arc A ascending and descending sequences:

ibex_rotate -o -r +229.377 -d -18.194 -w ibex-sun -t 2016/11:14:19:58:46

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.618528,-0.721063,-0.312235

 which is     R.A. +229.377 Decl. -18.194

 missing      R.A. +230.276 Decl. -18.454 (ibex-sun)

 error is     R.A.   +0.899 Decl.  +0.260

 for a total  0.892 deg

ibex_rotate -o -r +229.377 -d -18.194 -w ibex-sun -t 2016/11:18:13:03:30

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.618528,-0.721063,-0.312235

 which is     R.A. +229.377 Decl. -18.194

 missing      R.A. +233.984 Decl. -19.358 (ibex-sun)

 error is     R.A.   +4.607 Decl.  +1.164

 for a total  4.515 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 -0.581736,-0.742102,-0.332968 -w ibex-sun -t 2016/11:18:14:46:38

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.581736,-0.742102,-0.332968

 which is     R.A. +231.907 Decl. -19.449

 missing      R.A. +234.058 Decl. -19.374 (ibex-sun)

 error is     R.A.   +2.151 Decl.  +0.075

 for a total  2.030 deg

ibex_rotate -o -u -0.581736,-0.742102,-0.332968 -w ibex-sun -t 2016/11:18:16:21:44

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.581736,-0.742102,-0.332968

 which is     R.A. +231.907 Decl. -19.449

 missing      R.A. +234.126 Decl. -19.389 (ibex-sun)

 error is     R.A.   +2.219 Decl.  +0.060

 for a total  2.093 deg

ibex_rotate -o -u -0.581736,-0.742102,-0.332968 -w ibex-sun -t 2016/11:23:04:45:03

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.581736,-0.742102,-0.332968

 which is     R.A. +231.907 Decl. -19.449

 missing      R.A. +238.946 Decl. -20.354 (ibex-sun)

 error is     R.A.   +7.039 Decl.  +0.905

 for a total  6.680 deg

The inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 348 apogee:

ibex_rotate -o -u -0.514158,-0.783058,-0.349946 -w ibex-sun -t 2016/11:23:07:08:14

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.514158,-0.783058,-0.349946

 which is     R.A. +236.711 Decl. -20.484

 missing      R.A. +239.059 Decl. -20.377 (ibex-sun)

 error is     R.A.   +2.348 Decl.  +0.107

 for a total  2.203 deg

ibex_rotate -o -u -0.514158,-0.783058,-0.349946 -w ibex-sun -t 2016-11-28T06:36:58.694Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.514158,-0.783058,-0.349946

 which is     R.A. +236.711 Decl. -20.484

 missing      R.A. +244.265 Decl. -21.361 (ibex-sun)

 error is     R.A.   +7.554 Decl.  +0.877

 for a total  7.110 deg

No Lo O-mode.

There is no overlap with orbit 346 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken