IBEX_2017_127_o0366a_v001.scr,

and I approve.

The only constraint violations in

IBEX_2017_127_o0366a_v001.ccvr

are from the removal of the

ACT_SetSpinPulseProtectEnable Enable

commands (2); the violations are expected.

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

IBEX_2017_127_o0366a_v002.stf.

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_2017_127_o0366a_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  The outage starts 1+ days after apogee and runs for almost two days. Some despinning may be required due to this outage.

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_Orbit366_Contacts.txt,

for all contacts (3).

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

The inertial maneuver at perigee of orbit 365 left us pointing in safe directions for the orbit 366 arc A ascending and descending sequences:

ibex_rotate -o -u 0.714991,0.645183,0.269306 -w ibex-sun -t 2017/05:07:16:17:31

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.714991,+0.645183,+0.269306

 which is     R.A.  +42.062 Decl. +15.623

 missing      R.A.  +44.575 Decl. +16.903 (ibex-sun)

 error is     R.A.   +2.513 Decl.  +1.280

 for a total  2.731 deg

ibex_rotate -o -u 0.714991,0.645183,0.269306 -w ibex-sun -t 2017/05:11:03:26:12

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.714991,+0.645183,+0.269306

 which is     R.A.  +42.062 Decl. +15.623

 missing      R.A.  +48.064 Decl. +17.842 (ibex-sun)

 error is     R.A.   +6.002 Decl.  +2.219

 for a total  6.161 deg

The inertial 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 0.661389,0.6922,0.288831 -w ibex-sun -t 2017/05:11:05:09:20

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.661389,+0.692200,+0.288831

 which is     R.A.  +46.304 Decl. +16.788

 missing      R.A.  +48.135 Decl. +17.862 (ibex-sun)

 error is     R.A.   +1.831 Decl.  +1.074

 for a total  2.052 deg

ibex_rotate -o -u 0.661389,0.6922,0.288831 -w ibex-sun -t 2017/05:11:06:44:26

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.661389,+0.692200,+0.288831

 which is     R.A.  +46.304 Decl. +16.788

 missing      R.A.  +48.201 Decl. +17.880 (ibex-sun)

 error is     R.A.   +1.897 Decl.  +1.092

 for a total  2.114 deg

ibex_rotate -o -u 0.661389,0.6922,0.288831 -w ibex-sun -t 2017/05:15:12:43:46

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.661389,+0.692200,+0.288831

 which is     R.A.  +46.304 Decl. +16.788

 missing      R.A.  +52.292 Decl. +18.951 (ibex-sun)

 error is     R.A.   +5.988 Decl.  +2.163

 for a total  6.095 deg

The inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 367 apogee:

ibex_rotate -o -u 0.603139,0.735581,0.308453 -w ibex-sun -t 2017/05:15:14:54:34

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.603139,+0.735581,+0.308453

 which is     R.A.  +50.650 Decl. +17.966

 missing      R.A.  +52.374 Decl. +18.970 (ibex-sun)

 error is     R.A.   +1.724 Decl.  +1.004

 for a total  1.919 deg

ibex_rotate -o -u 0.603139,0.735581,0.308453 -w ibex-sun -t 2017-05-20T10:42:41.819Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.603139,+0.735581,+0.308453

 which is     R.A.  +50.650 Decl. +17.966

 missing      R.A.  +57.263 Decl. +20.009 (ibex-sun)

 error is     R.A.   +6.613 Decl.  +2.043

 for a total  6.578 deg

No Lo O-mode.

There is no overlap with orbit 365 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken