IBEX_2016_175_o0331a_v003.scr,

IBEX_2016_175_o0331a_v003.ccvr

are because we removed the

ACT_SetSpinPulseProtectEnable Enable

commands (2); the violations are expected.

The PL commands in the v003 ATS match those in the v002 STF,

IBEX_2016_175_o0331a_v002.stf,

except that the ATS has an SSR_DUMP_NEW command as well as SSR pointer reset commands.  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_175_o0331a_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  It starts about 3 1/2 hours before perigee and ends about an 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 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_Orbit331_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 330 left us pointing in safe directions for the orbit 331 arc A ascending and descending sequences:

ibex_rotate -o -u -0.001479,0.921313,0.388818 -w ibex-sun -t 2016/06:24:01:45:19

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.001479,+0.921313,+0.388818

 which is     R.A.  +90.092 Decl. +22.881

 missing      R.A.  +92.974 Decl. +23.395 (ibex-sun)

 error is     R.A.   +2.882 Decl.  +0.514

 for a total  2.699 deg

ibex_rotate -o -u -0.001479,0.921313,0.388818 -w ibex-sun -t 2016/06:27:15:45:54

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.001479,+0.921313,+0.388818

 which is     R.A.  +90.092 Decl. +22.881

 missing      R.A.  +96.762 Decl. +23.257 (ibex-sun)

 error is     R.A.   +6.670 Decl.  +0.376

 for a total  6.148 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 -0.075693,0.918906,0.387145 -w ibex-sun -t 2016/06:27:17:29:02

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.075693,+0.918906,+0.387145

 which is     R.A.  +94.709 Decl. +22.777

 missing      R.A.  +96.838 Decl. +23.254 (ibex-sun)

 error is     R.A.   +2.129 Decl.  +0.477

 for a total  2.017 deg

ibex_rotate -o -u -0.075693,0.918906,0.387145 -w ibex-sun -t 2016/06:27:19:04:08

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.075693,+0.918906,+0.387145

 which is     R.A.  +94.709 Decl. +22.777

 missing      R.A.  +96.908 Decl. +23.252 (ibex-sun)

 error is     R.A.   +2.199 Decl.  +0.475

 for a total  2.079 deg

 ibex_rotate -o -u -0.075693,0.918906,0.387145 -w ibex-sun -t 2016/07:02:04:21:53

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.075693,+0.918906,+0.387145

 which is     R.A.  +94.709 Decl. +22.777

 missing      R.A. +101.454 Decl. +23.036 (ibex-sun)

 error is     R.A.   +6.745 Decl.  +0.259

 for a total  6.218 deg

The inertial maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 332 apogee:

ibex_rotate -o -u -0.152111,0.91064,0.384183 -w ibex-sun -t 2016/07:02:06:31:20

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.152111,+0.910640,+0.384183

 which is     R.A.  +99.483 Decl. +22.593

 missing      R.A. +101.541 Decl. +23.029 (ibex-sun)

 error is     R.A.   +2.058 Decl.  +0.436

 for a total  1.947 deg

ibex_rotate -o -u -0.152111,0.91064,0.384183 -w ibex-sun -t 2016-07-07T07:25:01.919Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.152111,+0.910640,+0.384183

 which is     R.A.  +99.483 Decl. +22.593

 missing      R.A. +106.718 Decl. +22.517 (ibex-sun)

 error is     R.A.   +7.235 Decl.  +0.076

 for a total  6.682 deg

No Lo O-mode.

There is no overlap with orbit 330 command by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken