IBEX_2016_129_o0326a_Recovery_v004.scr,

IBEX_2016_129_o0326a_Recovery_v001.ccvr

ACT_SetSpinPulseProtectEnable Enable

commands (2) as well as one about a long contact; the violations are expected.

The PL commands in the v004 ATS match those in the v003 STF,

IBEX_2016_129_o0326a_v003.stf,

except 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_129_o0326a_Recovery_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  The outage starts about an hour before 15 Re descending and runs for 5+ hours.  If the star tracker was working, some despinning might be required due to the outage.

There is one moon in Lo FOV session in arc B.  The ATS start time is about 3 hours before that in the OEF and the ATS end time is about 8 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_Orbit326_RecoveryContacts.txt,

for all contacts (3).

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

The sun precession maneuver at perigee of orbit 325 left us pointing in safe directions for the orbit 326 arc A ascending and descending sequences:

ibex_rotate -o -r +44.879 -d  +17.024 -w ibex-sun -t 2016/05:08:13:22:47

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.677549,+0.674694,+0.292772

 which is     R.A.  +44.879 Decl. +17.024

 missing      R.A.  +45.670 Decl. +17.219 (ibex-sun)

 error is     R.A.   +0.791 Decl.  +0.195

 for a total  0.781 deg

ibex_rotate -o -r +44.879 -d  +17.024 -w ibex-sun -t 2016/05:12:17:47:00

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.677549,+0.674694,+0.292772

 which is     R.A.  +44.879 Decl. +17.024

 missing      R.A.  +49.895 Decl. +18.311 (ibex-sun)

 error is     R.A.   +5.016 Decl.  +1.287

 for a total  4.949 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 +49.970 -d +18.331 -w ibex-sun -t 2016/05:12:19:35:08

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.610550,+0.726852,+0.314506

 which is     R.A.  +49.970 Decl. +18.331

 missing      R.A.  +49.970 Decl. +18.331 (ibex-sun)

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

 for a total  0.001 deg

ibex_rotate -o -r +49.970 -d +18.331 -w ibex-sun -t 2016/05:12:21:05:14

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.610550,+0.726852,+0.314506

 which is     R.A.  +49.970 Decl. +18.331

 missing      R.A.  +50.032 Decl. +18.347 (ibex-sun)

 error is     R.A.   +0.062 Decl.  +0.016

 for a total  0.060 deg

ibex_rotate -o -r +49.970 -d +18.331 -w ibex-sun -t 2016/05:17:01:03:00

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.610550,+0.726852,+0.314506

 which is     R.A.  +49.970 Decl. +18.331

 missing      R.A.  +54.040 Decl. +19.353 (ibex-sun)

 error is     R.A.   +4.070 Decl.  +1.022

 for a total  3.985 deg

The sun precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 327 apogee:

ibex_rotate -o -r +54.139 -d +19.374 -w ibex-sun -t 2016/05:17:03:39:19

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.552648,+0.764548,+0.331733

 which is     R.A.  +54.139 Decl. +19.374

 missing      R.A.  +54.139 Decl. +19.374 (ibex-sun)

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

 for a total  0.001 deg

ibex_rotate -o -r +54.139 -d +19.374 -w ibex-sun -t 2016-05-22T03:53:11.706Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.552648,+0.764548,+0.331733

 which is     R.A.  +54.139 Decl. +19.374

 missing      R.A.  +59.246 Decl. +20.401 (ibex-sun)

 error is     R.A.   +5.107 Decl.  +1.027

 for a total  4.911 deg

No Lo O-mode.

There is no overlap with orbit 325 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken