ACT_SetSpinPulseProtectEnable Enable

commands (2); the violations are expected.

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

IBEX_2016_265_o0341a_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_265_o0341a_v002.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  The outage starts 5 hours after perigee and runs for 6 hours.  No despinning should be required due to this outage.

There is a moon in Lo FOV session in arc A.  The ATS start time is 7 hours after that in the OEF and the ATS end time is about 3 1/2 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_Orbit341_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 340 left us pointing in safe directions for the orbit 341 arc A ascending and descending sequences:

ibex_rotate -o -u -0.997878,0.062921,0.016754 -w ibex-sun -t 2016/09:21:23:59:59
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.997878,+0.062921,+0.016754
which is R.A. +176.392 Decl. +0.960
missing R.A. +179.240 Decl. +0.312 (ibex-sun)
error is R.A. +2.848 Decl. +0.648
for a total 2.921 deg

ibex_rotate -o -u -0.997878,0.062921,0.016754 -w ibex-sun -t 2016/09:25:12:16:25
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.997878,+0.062921,+0.016754
which is R.A. +176.392 Decl. +0.960
missing R.A. +182.306 Decl. -1.034 (ibex-sun)
error is R.A. +5.914 Decl. +1.994
for a total 6.241 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 -0.999878,-0.006684,-0.014102 -w ibex-sun -t 2016/09:25:13:59:33
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.999878,-0.006684,-0.014102
which is R.A. +180.383 Decl. -0.808
missing R.A. +182.371 Decl. -1.061 (ibex-sun)
error is R.A. +1.988 Decl. +0.253
for a total 2.003 deg

ibex_rotate -o -u -0.999878,-0.006684,-0.014102 -w ibex-sun -t 2016/09:25:15:34:39
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.999878,-0.006684,-0.014102
which is R.A. +180.383 Decl. -0.808
missing R.A. +182.430 Decl. -1.087 (ibex-sun)
error is R.A. +2.047 Decl. +0.279
for a total 2.066 deg

ibex_rotate -o -u -0.999878,-0.006684,-0.014102 -w ibex-sun -t 2016/09:30:00:08:20
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.999878,-0.006684,-0.014102
which is R.A. +180.383 Decl. -0.808
missing R.A. +186.484 Decl. -2.782 (ibex-sun)
error is R.A. +6.101 Decl. +1.974
for a total 6.409 deg

The inertial maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 342 apogee:

ibex_rotate -o -u -0.995985,-0.077826,-0.04423 -w ibex-sun -t 2016/09:30:02:26:29
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.995985,-0.077826,-0.044230
which is R.A. +184.468 Decl. -2.535
missing R.A. +186.574 Decl. -2.822 (ibex-sun)
error is R.A. +2.106 Decl. +0.287
for a total 2.123 deg

ibex_rotate -o -u -0.995985,-0.077826,-0.04423 -w ibex-sun -t 2016-10-04T22:02:19.675Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.995985,-0.077826,-0.044230

 which is     R.A. +184.468 Decl.  -2.535

 missing      R.A. +190.813 Decl.  -4.679 (ibex-sun)

 error is     R.A.   +6.345 Decl.  +2.144

 for a total  6.685 deg

No Lo O-mode.

There is no overlap with orbit 340 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken