[Isocops] IBEX Orbit# 154 ATS v001 - approve
Mark Tapley
mtapley at swri.edu
Fri Jan 13 18:07:30 EST 2012
All,
I have looked at the Orbit 154 ATS v001
IBEX_2012_025_o0154a_v001.txt
and I approve.
Constraint violation per .ccvr file:
IBEX_2012_025_o0154a_v001.ccvr
expected due to eclipse. Indicated level of 0% charge appears
to me an MPS anomaly, consistent with recent orbits.
The PL commands in the ATS v001 match the STF v003
IBEX_2012_025_o0154a_v002.stf
per Ken's script (thanks!).
PL ascending and descending operations make sense with
respect to 15 Re ascending, Apogee, and 15 Re descending times from
IBEX_2012_025_o0154a_v001.oef
Moon in -Lo FOV PMT setback commands needed per the .oef, and
match times reasonably (.stf starts 5 hours late and ends 3 hours
late).
Ground station contact times and rates per
IBEX_Orbit154Contacts_v001.txt
match S/C commands for all 4 contacts.
No Battery cell balancing this orbit, we did it last two
orbits with eclipses.
Inertial maneuver at the end of orbit 153 left us pointing in
a safe direction for ascending and descending macros during first
half of orbit:
[tapley at ena ~]$ ibex_rotate -o -u 0.538709,-0.767787,-0.346837 -w
ibex-sun -t 2012/01:26:08:36:13
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.538709,-0.767787,-0.346837
which is R.A. +305.055 Decl. -20.294
missing R.A. +308.012 Decl. -18.850 (ibex-sun)
error is R.A. +2.957 Decl. +1.444
for a total 3.138 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.538709,-0.767787,-0.346837 -w
ibex-sun -t 2012/01:30:02:18:22
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.538709,-0.767787,-0.346837
which is R.A. +305.055 Decl. -20.294
missing R.A. +311.824 Decl. -17.934 (ibex-sun)
error is R.A. +6.770 Decl. +2.360
for a total 6.817 deg
Inertial maneuver at apogee leaves us pointing in a safe
direction at maneuver and at following Ascending and Descending
Macros.
[tapley at ena ~]$ ibex_rotate -o -u 0.605589,-0.725099,-0.327861 -w
ibex-sun -t 2012/01:30:04:10:51
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.605589,-0.725099,-0.327861
which is R.A. +309.868 Decl. -19.139
missing R.A. +311.904 Decl. -17.914 (ibex-sun)
error is R.A. +2.036 Decl. +1.225
for a total 2.286 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.605589,-0.725099,-0.327861 -w
ibex-sun -t 2012/01:30:05:37:16
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.605589,-0.725099,-0.327861
which is R.A. +309.868 Decl. -19.139
missing R.A. +311.965 Decl. -17.899 (ibex-sun)
error is R.A. +2.097 Decl. +1.240
for a total 2.343 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.605589,-0.725099,-0.327861 -w
ibex-sun -t 2012/02:03:09:42:05
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.605589,-0.725099,-0.327861
which is R.A. +309.868 Decl. -19.139
missing R.A. +316.222 Decl. -16.709 (ibex-sun)
error is R.A. +6.354 Decl. +2.430
for a total 6.515 deg
Inertial maneuver at perigee leaves us pointing in a safe
direction at maneuver and at following Apogee.
[tapley at ena ~]$ ibex_rotate -o -u 0.666285,-0.678964,-0.308336 -w
ibex-sun -t 2012/02:03:16:20:17
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.666285,-0.678964,-0.308336
which is R.A. +314.460 Decl. -17.959
missing R.A. +316.519 Decl. -16.613 (ibex-sun)
error is R.A. +2.059 Decl. +1.346
for a total 2.382 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.666285,-0.678964,-0.308336 -w
ibex-sun -t 2012-02-08T12:14:33.567Z
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.666285,-0.678964,-0.308336
which is R.A. +314.460 Decl. -17.959
missing R.A. +321.376 Decl. -15.176 (ibex-sun)
error is R.A. +6.916 Decl. +2.783
for a total 7.188 deg
Various -Lo O-mode Commands (plans 7,7,1,1 and 6,7,1,1)
during both arcs.
No overlaps to orbit 153 by manual check or by reference to
http://ibex.unh.edu/cgi-bin/ats.cgi.
Command Approval Checklist attached.
O-mode checklist attached.
-Hi Neg collimator voltage set to 1600V on arc A only.
At 18:04 -0500 1/12/12, Ibex Mission Operations wrote:
>Guys,
> Here are the planning files and ATS for Orbit# 154.
>Please respond to this thread for your approvals/comments.
>All approvals/comments are required by 1900 UTC on 14 Jan 12.
>Orbit# 152 Perigee activities start on 16 Jan 12 @ 1045 UTC
--
- Mark 210-379-4635
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