IBEX_2017_100_o0363a_v001.scr,

and I approve.

The only constraint violations in

IBEX_2017_100_o0363a_v001.ccvr

are due to the proximity of the two contacts on 4/19 and 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_100_o0363a_v002.stf,

except that the ATS has an SSR_DUMP_NEW command.  This is expected as APL is being used for a 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_2017_100_o0363a_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  The outage starts in orbit 362 and ends 1 1/2+ days after apogee.  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_Orbit363_Contacts.txt,

for all contacts (4).

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

The sun precession maneuver at perigee of orbit 362 left us pointing in safe directions for the orbit 363 arc A ascending and descending sequences:

ibex_rotate -o -r +18.658 -d +7.917 -w ibex-sun -t 2017/04:11:00:36:21

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.938415,+0.316869,+0.137738

 which is     R.A.  +18.658 Decl.  +7.917

 missing      R.A.  +19.482 Decl.  +8.207 (ibex-sun)

 error is     R.A.   +0.824 Decl.  +0.290

 for a total  0.866 deg

ibex_rotate -o -r +18.658 -d +7.917 -w ibex-sun -t 2017/04:14:22:03:47

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.938415,+0.316869,+0.137738

 which is     R.A.  +18.658 Decl.  +7.917

 missing      R.A.  +23.184 Decl.  +9.658 (ibex-sun)

 error is     R.A.   +4.526 Decl.  +1.741

 for a total  4.799 deg

The sun 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 -r +23.253 -d +9.686 -w ibex-sun -t 2017/04:14:23:51:55

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.905673,+0.389164,+0.168249

 which is     R.A.  +23.253 Decl.  +9.686

 missing      R.A.  +23.253 Decl.  +9.686 (ibex-sun)

 error is     R.A.   +0.000 Decl.  +0.000

 for a total  0.000 deg

ibex_rotate -o -r +23.253 -d +9.686 -w ibex-sun -t 2017/04:15:01:22:01

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.905673,+0.389164,+0.168249

 which is     R.A.  +23.253 Decl.  +9.686

 missing      R.A.  +23.311 Decl.  +9.709 (ibex-sun)

 error is     R.A.   +0.058 Decl.  +0.023

 for a total  0.061 deg

ibex_rotate -o -r +23.253 -d +9.686 -w ibex-sun -t 2017/04:18:21:44:23

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.905673,+0.389164,+0.168249

 which is     R.A.  +23.253 Decl.  +9.686

 missing      R.A.  +26.762 Decl. +11.068 (ibex-sun)

 error is     R.A.   +3.509 Decl.  +1.382

 for a total  3.718 deg

The inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 364 apogee:

ibex_rotate -o -u 0.890695,0.420801,0.172015 -w ibex-sun -t 2017/04:18:23:58:20

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.890695,+0.420801,+0.172015

 which is     R.A.  +25.288 Decl.  +9.905

 missing      R.A.  +26.843 Decl. +11.096 (ibex-sun)

 error is     R.A.   +1.555 Decl.  +1.191

 for a total  1.938 deg

ibex_rotate -o -u 0.890695,0.420801,0.172015 -w ibex-sun -t 2017-04-23T19:09:47.008Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.890695,+0.420801,+0.172015

 which is     R.A.  +25.288 Decl.  +9.905

 missing      R.A.  +31.455 Decl. +12.721 (ibex-sun)

 error is     R.A.   +6.167 Decl.  +2.816

 for a total  6.670 deg

No Lo O-mode.

There is no overlap with orbit 362 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken