IBEX_2016_283_o0343a_v001.scr,

and I approve.

The only constraint violations in

IBEX_2016_283_o0343a_v001.ccvr

are because we removed the

ACT_SetSpinPulseProtectEnable Enable

commands (2); the violations are expected.

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

IBEX_2016_283_o0343a_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_283_o0343a_v001.oef,

and as verified with ibex_orbit.

There are 3 star tracker outages.  The first starts 10+ hours after orbit 342 perigee and runs for about 4 hours.  The second starts 2+ days after the first outage ends and runs for almost a full day.  The third starts about 2 hours before perigee and runs for 3+ hours.  Some despinning may be required due to the first outages.

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_Orbit343_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 342 left us pointing in safe directions for the orbit 343 arc A ascending and descending sequences:

ibex_rotate -o -u -0.971114,-0.214917,-0.103678 -w ibex-sun -t 2016/10:09:20:00:56

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.971114,-0.214917,-0.103678

 which is     R.A. +192.479 Decl.  -5.951

 missing      R.A. +195.411 Decl.  -6.588 (ibex-sun)

 error is     R.A.   +2.932 Decl.  +0.637

 for a total  2.984 deg

ibex_rotate -o -u -0.971114,-0.214917,-0.103678 -w ibex-sun -t 2016/10:13:07:15:40

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.971114,-0.214917,-0.103678

 which is     R.A. +192.479 Decl.  -5.951

 missing      R.A. +198.501 Decl.  -7.867 (ibex-sun)

 error is     R.A.   +6.022 Decl.  +1.916

 for a total  6.277 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 -0.950089,-0.281988,-0.133467 -w ibex-sun -t 2016/10:13:08:58:55

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.950089,-0.281988,-0.133467

 which is     R.A. +196.531 Decl.  -7.670

 missing      R.A. +198.567 Decl.  -7.893 (ibex-sun)

 error is     R.A.   +2.036 Decl.  +0.223

 for a total  2.030 deg

ibex_rotate -o -u -0.950089,-0.281988,-0.133467 -w ibex-sun -t 2016/10:13:10:33:54

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.950089,-0.281988,-0.133467

 which is     R.A. +196.531 Decl.  -7.670

 missing      R.A. +198.628 Decl.  -7.917 (ibex-sun)

 error is     R.A.   +2.097 Decl.  +0.247

 for a total  2.092 deg

ibex_rotate -o -u -0.950089,-0.281988,-0.133467 -w ibex-sun -t 2016/10:17:17:27:58

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.950089,-0.281988,-0.133467

 which is     R.A. +196.531 Decl.  -7.670

 missing      R.A. +202.743 Decl.  -9.494 (ibex-sun)

 error is     R.A.   +6.212 Decl.  +1.824

 for a total  6.407 deg

The inertial maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 344 apogee:

ibex_rotate -o -u -0.923415,-0.348193,-0.161449 -w ibex-sun -t 2016/10:17:19:48:46

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.923415,-0.348193,-0.161449

 which is     R.A. +200.660 Decl.  -9.291

 missing      R.A. +202.840 Decl.  -9.532 (ibex-sun)

 error is     R.A.   +2.180 Decl.  +0.241

 for a total  2.164 deg

ibex_rotate -o -u -0.923415,-0.348193,-0.161449 -w ibex-sun -t 2016-10-22T18:42:34.511Z

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

 points axis  +1.000000,+0.000000,+0.000000

 towards ECI  -0.923415,-0.348193,-0.161449

 which is     R.A. +200.660 Decl.  -9.291

 missing      R.A. +207.378 Decl. -11.305 (ibex-sun)

 error is     R.A.   +6.718 Decl.  +2.014

 for a total  6.910 deg

No Lo O-mode.

There is no overlap with orbit 342 commands by manual inspection or by checking at

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

Command Approval Checklist is attached.

Ken