IBEX_2016_065_o0319a_Recovery_v001.scr,

and I approve.

The only constraint violations in

IBEX_2016_065_o0319a_Recovery_v001.ccvr

are related to long contacts and the orbit 318 eclipse and are expected.

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

IBEX_2016_065_o0319a_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_2016_065_o0319a_Recovery_v001.oef,

and as verified with ibex_orbit.

There is one star tracker outage.  It starts 1 1/2+ days after apogee and runs for almost 2 days.  Some despinning may be required due to this outage.

There is one moon in Lo FOV session in arc B.  The ATS start time is about 6 hours before that in the OEF and the ATS end time is about 4 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_Orbit319_RecoveryContacts.txt,

for all contacts (2).  The commands for the APL contact will be in a separate ATS.

We are doing battery cell balancing this orbit and the balancing commands are correct and offset by enough time from other commands.

The sun precession maneuver at perigee of orbit 318 left us pointing in safe directions for the orbit 319 arc A ascending and descending sequences:

ibex_rotate -o -r +345.534 -d -6.164 -w ibex-sun -t 2016/03:05:14:26:02

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.962698,-0.248361,-0.107375

 which is     R.A. +345.534 Decl.  -6.164

 missing      R.A. +346.424 Decl.  -5.825 (ibex-sun)

 error is     R.A.   +0.890 Decl.  +0.339

 for a total  0.948 deg

ibex_rotate -o -r +345.534 -d -6.164 -w ibex-sun -t 2016/03:09:12:08:22

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.962698,-0.248361,-0.107375

 which is     R.A. +345.534 Decl.  -6.164

 missing      R.A. +350.098 Decl.  -4.297 (ibex-sun)

 error is     R.A.   +4.564 Decl.  +1.867

 for a total  4.913 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 +350.166 -d -4.267 -w ibex-sun -t 2016/03:09:13:56:30

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.982576,-0.170321,-0.074404

 which is     R.A. +350.166 Decl.  -4.267

 missing      R.A. +350.166 Decl.  -4.267 (ibex-sun)

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

 for a total  0.000 deg

ibex_rotate -o -r +350.166 -d -4.267 -w ibex-sun -t 2016/03:09:15:26:36

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.982576,-0.170321,-0.074404

 which is     R.A. +350.166 Decl.  -4.267

 missing      R.A. +350.223 Decl.  -4.242 (ibex-sun)

 error is     R.A.   +0.057 Decl.  +0.025

 for a total  0.062 deg

ibex_rotate -o -r +350.166 -d -4.267 -w ibex-sun -t 2016/03:13:14:13:49

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.982576,-0.170321,-0.074404

 which is     R.A. +350.166 Decl.  -4.267

 missing      R.A. +353.742 Decl.  -2.688 (ibex-sun)

 error is     R.A.   +3.576 Decl.  +1.579

 for a total  3.902 deg

The sun precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 320 apogee:

ibex_rotate -o -r +353.833 -d -2.650 -w ibex-sun -t 2016/03:13:16:38:41

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.993150,-0.107312,-0.046235

 which is     R.A. +353.833 Decl.  -2.650

 missing      R.A. +353.833 Decl.  -2.650 (ibex-sun)

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

 for a total  0.001 deg

ibex_rotate -o -r +353.833 -d -2.650 -w ibex-sun -t 2016-03-18T16:08:47.925Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  +0.993150,-0.107312,-0.046235

 which is     R.A. +353.833 Decl.  -2.650

 missing      R.A. +358.513 Decl.  -0.678 (ibex-sun)

 error is     R.A.   +4.680 Decl.  +1.972

 for a total  5.076 deg

No Lo O-mode.

The transmitter off command from the last contact in orbit 318 occurs after the first command in the orbit 319 ATS.

Command Approval Checklist is attached.

Ken