IBEX_2016_310_o0346a_v002.scr,
IBEX_2016_310_o0346a_v001.ccvr
are because we removed the
ACT_SetSpinPulseProtectEnable Enable
commands (2); the violations are expected.
The PL commands in the v002 ATS match those in the v002 STF,
IBEX_2016_310_o0346a_v002.stf,
except that the ATS has an SSR_DUMP_NEW command as well as SSR pointer reset commands. 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_310_o0346a_v001.oef,
and as verified with ibex_orbit.
There is one star tracker outage. It starts at apogee and ends about 10 hours after perigee. Some despinning may be required due to the outage.
There is one moon in Lo FOV session in arc A. The ATS start time is about 3 hours after that in the OEF and the ATS end time is about 2 1/2 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_Orbit346_Contacts.txt (with the correction Sheral sent with the v002 ATS),
for all contacts (4).
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 345 left us pointing in safe directions for the orbit 346 arc A ascending and descending sequences:
ibex_rotate -o -u -0.759329,-0.593125,-0.267625 -w ibex-sun -t 2016/11:05:19:19:16
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.759329,-0.593125,-0.267625
which is R.A. +217.994 Decl. -15.523
missing R.A. +221.144 Decl. -15.935 (ibex-sun)
error is R.A. +3.150 Decl. +0.412
for a total 3.060 deg
ibex_rotate -o -u -0.759329,-0.593125,-0.267625 -w ibex-sun -t 2016/11:09:08:15:17
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.759329,-0.593125,-0.267625
which is R.A. +217.994 Decl. -15.523
missing R.A. +224.563 Decl. -16.954 (ibex-sun)
error is R.A. +6.569 Decl. +1.431
for a total 6.467 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 -0.705047,-0.646486,-0.291487 -w ibex-sun -t 2016/11:09:09:58:25
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.705047,-0.646486,-0.291487
which is R.A. +222.519 Decl. -16.947
missing R.A. +224.634 Decl. -16.974 (ibex-sun)
error is R.A. +2.115 Decl. +0.027
for a total 2.023 deg
ibex_rotate -o -u -0.705047,-0.646486,-0.291487 -w ibex-sun -t 2016/11:09:11:33:31
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.705047,-0.646486,-0.291487
which is R.A. +222.519 Decl. -16.947
missing R.A. +224.700 Decl. -16.992 (ibex-sun)
error is R.A. +2.181 Decl. +0.045
for a total 2.086 deg
ibex_rotate -o -u -0.705047,-0.646486,-0.291487 -w ibex-sun -t 2016/11:13:20:58:23
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.705047,-0.646486,-0.291487
which is R.A. +222.519 Decl. -16.947
missing R.A. +229.262 Decl. -18.164 (ibex-sun)
error is R.A. +6.743 Decl. +1.217
for a total 6.543 deg
The sun precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 347 apogee:
ibex_rotate -o -r +229.377 -d -18.194 -w ibex-sun -t 2016/11:13:23:28:01
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.618528,-0.721063,-0.312235
which is R.A. +229.377 Decl. -18.194
missing R.A. +229.377 Decl. -18.194 (ibex-sun)
error is R.A. +0.000 Decl. +0.000
for a total 0.000 deg
ibex_rotate -o -r +229.377 -d -18.194 -w ibex-sun -t 2016-11-19T00:36:57.873Z
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.618528,-0.721063,-0.312235
which is R.A. +229.377 Decl. -18.194
missing R.A. +234.479 Decl. -19.465 (ibex-sun)
error is R.A. +5.102 Decl. +1.271
for a total 4.993 deg
No Lo O-mode.
There is no overlap with orbit 345 commands by manual inspection or by checking at
http://ibex.unh.edu/cgi-bin/ats.cgi.
Command Approval Checklist is attached.
Ken
Guys,
Here are the planning files and ATS for Orbit# 346.
Please respond to this email thread with your comments and approvals.
Approvals are required before 25 Oct 16 @1800 UTC
Note the following:
1. Battery Balancing at PERIGEE
Orbit# 346 Perigee Battery Balancing
# 2016-11-14T08:30:00.255Z,Perigee,orbit:346
SetLongEclipseFlag TRUE $TIME=2016/11:14:07:00:00
SetLongEclipseFlag FALSE $TIME=2016/11:14:08:30:00
2. Moon in Lo FOV Commands
Orbit# 346 APOGEE: Moon in Lo FOV Commands
# 2016-11-05T20:52:58.559Z,MoonInLoFovStart,orbit:346
# 2016-11-06T10:27:04.757Z,MoonInLoFovStop,orbit:346
3. PERIGEE Sun Maneuver
2016-11-09T19:50:59.561Z,StarTrackerOutageStart,dueTo:moon,orbit:346
2016-11-14T18:19:00.000Z,StarTrackerOutageStop,dueTo:moon,orbit:346
4. APL-18 SSR_Dump/Tracking Contact
IBEX,APL-18,ADD,11/14/16,319,02:00:00,11/14/16,319,03:00:00,,12re-Descending Perigee 2K-320K IBEX Orbit# 346 SSR_Dump/Tracking Contact
5. Command Load Constraint Violation Report (CCVR)
IBEX_2016_310_o0346a_v001.scr
==========================
HARD CONSTRAINT VIOLATIONS
==========================
NO VIOLATIONS.
==========================
SOFT CONSTRAINT VIOLATIONS
==========================
IBX-CLC-016: No command to enable spin pulse protection was found after
transition to science mode at 2016/11/05 17:43:13 UTC
IBX-CLC-016: No command to enable spin pulse protection was found after
transition to science mode at 2016/11/09 11:03:31 UTC
==============
OTHER MESSAGES
==============
NO MESSAGES.
Sheral R. Wesley
IBEX Mission OPS
CRS/CYGNUS Mission Planning
Bldg. 2 Room 1337
Office (703) 406-5641
Cell (202) 236-0802