[Isocops] IBEX Orbit# 130 ATS's - approve, conditionally.
Mark Tapley
mtapley at swri.edu
Sun Jun 19 14:53:33 EDT 2011
All,
I have looked at the Orbit 130 ATSs v001
IBEX_2011_173_o0130a_v001.txt
IBEX_2011_173_o0130b_v001.txt
and I approve, with conditions noted below.
The "PL mode unknown" constraint violation messages are gone
now! Yay! No other constraint violations.
The PL commands in the ATS v001 match the STF v003 files
IBEX_2011_172_o0130a_v003.stf
IBEX_2011_172_o0130b_v003.stf
per Ken's script (Thanks, Ken!).
PL ascending commands are commented out of the
...130a_v003.stf file, and hence do not appear in the
...130a_v001.txt ATS. This means that we should (must?) load the
ascending macros or run them manually *before* we load the "a" ATS
file; I don't know what happens if the PL is partly ramped up and
then we run the Moon-in-FOV set-back commands and/or Descending
macros.
PL ascending and descending operations make sense with
respect to 15 Re 15 Re ascending, Apogee, and 15 Re descending times
respectively.
Moon in -Lo FOV PMT setback commands are in the STF and match
the ATS part a, but there is no corresponding Moon-in-Lo FOV in the
.oef.
No ground station contact times. I assume those must be
loaded independently.
No battery cell balancing commands for this orbit; although
it is even-numbered and we would otherwise have done so, we just went
through 8 cycles on Orbit 129 subsequent to the Delta-V maneuvers.
Inertial sun-pointing maneuver at the end of orbit 129 (large
slew from Burn pointing) leaves us pointing in a safe direction at
the maneuver time, at the Apogee Descending macros, and all times in
between.
[tapley at ena ~]$ ibex_rotate -o -u 0.0542216,0.918386,0.391954 -w
ibex-sun -t 2011/06:20:18:15:00
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.054222,+0.918386,+0.391954
which is R.A. +86.621 Decl. +23.076
missing R.A. +88.874 Decl. +23.410 (ibex-sun)
error is R.A. +2.253 Decl. +0.334
for a total 2.096 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.0542216,0.918386,0.391954 -w
ibex-sun -t 2011/06:22:03:45:54
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.054222,+0.918386,+0.391954
which is R.A. +86.621 Decl. +23.076
missing R.A. +90.274 Decl. +23.450 (ibex-sun)
error is R.A. +3.652 Decl. +0.374
for a total 3.376 deg
[tapley at ena ~]$ ibex_rotate -o -u 0.0542216,0.918386,0.391954 -w
ibex-sun -t 2011/06:25:13:27:10
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI +0.054222,+0.918386,+0.391954
which is R.A. +86.621 Decl. +23.076
missing R.A. +93.918 Decl. +23.366 (ibex-sun)
error is R.A. +7.297 Decl. +0.290
for a total 6.711 deg
Inertial maneuver at Apogee leaves us pointing in a safe
direction at maneuver time and at the following (130b) Ascending and
Descending macros.
[tapley at ena ~]$ ibex_rotate -o -u -0.030163,0.921876,0.386309 -w
ibex-sun -t 2011/06:25:14:59:00
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.030163,+0.921876,+0.386309
which is R.A. +91.874 Decl. +22.725
missing R.A. +93.985 Decl. +23.364 (ibex-sun)
error is R.A. +2.111 Decl. +0.639
for a total 2.045 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.030163,0.921876,0.386309 -w
ibex-sun -t 2011/06:25:16:46:04
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.030163,+0.921876,+0.386309
which is R.A. +91.874 Decl. +22.725
missing R.A. +94.063 Decl. +23.361 (ibex-sun)
error is R.A. +2.189 Decl. +0.636
for a total 2.112 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.030163,0.921876,0.386309 -w
ibex-sun -t 2011/06:29:23:14:08
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.030163,+0.921876,+0.386309
which is R.A. +91.874 Decl. +22.725
missing R.A. +98.418 Decl. +23.196 (ibex-sun)
error is R.A. +6.544 Decl. +0.471
for a total 6.044 deg
Inertial maneuver at Perigee leaves us pointing in a safe
direction at maneuver, and at following (131a) Ascending and
Descending macros.
[tapley at ena ~]$ ibex_rotate -o -u -0.104294,0.917509,0.383796 -w
ibex-sun -t 2011/06:30:09:08:56
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.104294,+0.917509,+0.383796
which is R.A. +96.485 Decl. +22.569
missing R.A. +98.811 Decl. +23.190 (ibex-sun)
error is R.A. +2.326 Decl. +0.621
for a total 2.232 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.104294,0.917509,0.383796 -w
ibex-sun -t 2011/06:30:22:55:46
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.104294,+0.917509,+0.383796
which is R.A. +96.485 Decl. +22.569
missing R.A. +99.400 Decl. +23.169 (ibex-sun)
error is R.A. +2.915 Decl. +0.600
for a total 2.752 deg
[tapley at ena ~]$ ibex_rotate -o -u -0.104294,0.917509,0.383796 -w
ibex-sun -t 2011/07:04:12:16:20
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.104294,+0.917509,+0.383796
which is R.A. +96.485 Decl. +22.569
missing R.A. +103.174 Decl. +22.862 (ibex-sun)
error is R.A. +6.689 Decl. +0.293
for a total 6.177 deg
No O-mode this orbit.
No obvious overlaps to orbit 129 or orbit 131. I have not
checked http://ibex.unh.edu/cgi-bin/ats.cgi, however. Transmitter
on/off commands will still need to be added and may cause overlaps,
which should not be a problem.
Command Approval Checklist attached.
At 16:52 -0400 5/19/11, Ibex Mission Operations wrote:
>Guys,
> Here is V004 of the ATS for Orbit# 127. We will omit the
>Inertial Maneuver in Orbit# 127 in preperation for the maintenance
>maneuver
>
>On Thu, May 19, 2011 at 2:31 PM, Ibex Mission Operations
><<mailto:ibexops at gmail.com>ibexops at gmail.com> wrote:
--
- Mark 210-379-4635
-----------------------------------------------------------------------
Large Asteroids headed toward planets
inhabited by beings that don't have
technology adequate to stop them:
Think of it as Evolution in Fast-Forward.
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