IBEX_Orbit477_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 476 left us pointing in safe directions for the orbit 477 arc A ascending and descending sequences:
ibex_rotate -o -u 0.795094,-0.552337,-0.250498 -w ibex-sun -t 2020/02:11:11:12:26
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.795094,-0.552337,-0.250498
which is R.A. +325.213 Decl. -14.507
missing R.A. +324.291 Decl. -14.221 (ibex-sun)
error is R.A. +0.922 Decl. +0.286
for a total 0.938 deg
ibex_rotate -o -u 0.795094,-0.552337,-0.250498 -w ibex-sun -t 2020/02:15:03:26:43
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.795094,-0.552337,-0.250498
which is R.A. +325.213 Decl. -14.507
missing R.A. +327.965 Decl. -12.947 (ibex-sun)
error is R.A. +2.752 Decl. +1.560
for a total 3.095 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 0.841256,-0.49232,-0.223403 -w ibex-sun -t 2020/02:15:05:09:51
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.841256,-0.492320,-0.223403
which is R.A. +329.663 Decl. -12.909
missing R.A. +328.034 Decl. -12.921 (ibex-sun)
error is R.A. +1.629 Decl. +0.012
for a total 1.588 deg
ibex_rotate -o -u 0.841256,-0.49232,-0.223403 -w ibex-sun -t 2020/02:15:06:44:57
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.841256,-0.492320,-0.223403
which is R.A. +329.663 Decl. -12.909
missing R.A. +328.097 Decl. -12.898 (ibex-sun)
error is R.A. +1.566 Decl. +0.011
for a total 1.526 deg
ibex_rotate -o -u 0.841256,-0.49232,-0.223403 -w ibex-sun -t 2020/02:19:17:59:58
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.841256,-0.492320,-0.223403
which is R.A. +329.663 Decl. -12.909
missing R.A. +332.314 Decl. -11.370 (ibex-sun)
error is R.A. +2.651 Decl. +1.539
for a total 3.014 deg
The inertial maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 478 apogee:
ibex_rotate -o -u 0.881653,-0.428831,-0.196956 -w ibex-sun -t 2020/02:19:21:16:44
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.881653,-0.428831,-0.196956
which is R.A. +334.062 Decl. -11.359
missing R.A. +332.449 Decl. -11.327 (ibex-sun)
error is R.A. +1.613 Decl. +0.032
for a total 1.582 deg
ibex_rotate -o -u 0.881653,-0.428831,-0.196956 -w ibex-sun -t 2020-02-24T16:12:16.224Z
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.881653,-0.428831,-0.196956
which is R.A. +334.062 Decl. -11.359
missing R.A. +337.142 Decl.-9.548 (ibex-sun)
error is R.A. +3.080 Decl. +1.811
for a total 3.529 deg
No Lo O-mode.
There is no overlap with orbit 476 commands by manual inspection or by checking at
Command Approval Checklist is attached.
Ken
