[Isocops] IBEX Orbit# 194 ATS v002 - approvel
Ibex Mission Operations
ibexops at gmail.com
Thu Jan 10 12:36:26 EST 2013
I approve the Orbit# 194 v002 ATS
On Wed, Jan 9, 2013 at 7:08 PM, Mark Tapley <mtapley at swri.edu> wrote:
> All,
> I have looked at the Orbit 194 ATS v002
>
> IBEX_2013_022_o0194a_v002.txt
>
> and I approve.
>
> No constraint violation per .ccvr file:
>
> IBEX_2013_022_o0194a_v002.ccvr
>
> The PL commands in the ATS v002 file match those in the STF
>
> IBEX_2013_022_o0194a_v001.stf
>
> according to Ken's script (thanks!).
>
> PL ascending and descending operations make sense with respect to
> each other and to 15 Re ascending, Apogee, and 15 Re descending times from
>
> IBEX_2013_022_o0194a_v001.oef
>
> Star tracker outage for 4 days and 5 hours near apogee requires
> sun-pointing maneuver.
>
> No Moon in -LO FOV during orbit.
>
> Ground station contact commands match contact times and bit rates
> in Contacts file
>
> IBEX_2013_Orbit194_v002.caf
>
> for all 3 contacts.
>
> Battery cell balancing this orbit, as is appropriate. Should do
> next orbit as well. Second command is FALSE, 1.5 hours after first command,
> hours away from any thing else, all as appropriate.
>
> Inertial maneuver at the end of orbit 193 left us pointing in
> extra safe directions for ascending and descending macros during first half
> of orbit:
>
> [tapley at ena ~]$ ibex_rotate -o -u 0.574771,-0.74676,-0.334646 -w ibex-sun
> -t 2013/01:22:23:32:34
> Quaternion +0.000000,+0.000000,+0.000000,**+0.000000
> points axis +1.000000,+0.000000,+0.000000
> towards ECI +0.574771,-0.746760,-0.334646
> which is R.A. +307.585 Decl. -19.551
> missing R.A. +305.268 Decl. -19.489 (ibex-sun)
> error is R.A. +2.317 Decl. +0.062
> for a total 2.185 deg
> [tapley at ena ~]$ ibex_rotate -o -u 0.574771,-0.74676,-0.334646 -w ibex-sun
> -t 2013/01:27:01:51:54
> Quaternion +0.000000,+0.000000,+0.000000,**+0.000000
> points axis +1.000000,+0.000000,+0.000000
> towards ECI +0.574771,-0.746760,-0.334646
> which is R.A. +307.585 Decl. -19.551
> missing R.A. +309.478 Decl. -18.537 (ibex-sun)
> error is R.A. +1.893 Decl. +1.014
> for a total 2.056 deg
>
> Sun-pointing 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 -r +309.554 -d -18.518 -w ibex-sun -t
> 2013/01:27:03:40:02
> Quaternion +0.000000,+0.000000,+0.000000,**+0.000000
> points axis +1.000000,+0.000000,+0.000000
> towards ECI +0.603834,-0.731104,-0.317603
> which is R.A. +309.554 Decl. -18.518
> missing R.A. +309.554 Decl. -18.518 (ibex-sun)
> error is R.A. +0.000 Decl. +0.000
> for a total 0.000 deg
> [tapley at ena ~]$ ibex_rotate -o -r +309.554 -d -18.518 -w ibex-sun -t
> 2013/01:27:05:10:08
> Quaternion +0.000000,+0.000000,+0.000000,**+0.000000
> points axis +1.000000,+0.000000,+0.000000
> towards ECI +0.603834,-0.731104,-0.317603
> which is R.A. +309.554 Decl. -18.518
> missing R.A. +309.618 Decl. -18.502 (ibex-sun)
> error is R.A. +0.064 Decl. +0.016
> for a total 0.063 deg
> [tapley at ena ~]$ ibex_rotate -o -r +309.554 -d -18.518 -w ibex-sun -t
> 2013/01:31:06:42:03
> Quaternion +0.000000,+0.000000,+0.000000,**+0.000000
> points axis +1.000000,+0.000000,+0.000000
> towards ECI +0.603834,-0.731104,-0.317603
> which is R.A. +309.554 Decl. -18.518
> missing R.A. +313.792 Decl. -17.380 (ibex-sun)
> error is R.A. +4.238 Decl. +1.138
> for a total 4.189 deg
>
> Inertial maneuver at perigee leaves us pointing in an extra safe
> direction at maneuver and at following Apogee.
>
> [tapley at ena ~]$ ibex_rotate -o -u 0.701247,-0.650044,-0.292739 -w
> ibex-sun -t 2013/01:31:13:51:07
> Quaternion +0.000000,+0.000000,+0.000000,**+0.000000
> points axis +1.000000,+0.000000,+0.000000
> towards ECI +0.701247,-0.650044,-0.292739
> which is R.A. +317.170 Decl. -17.022
> missing R.A. +314.117 Decl. -17.284 (ibex-sun)
> error is R.A. +3.053 Decl. +0.262
> for a total 2.929 deg
> [tapley at ena ~]$ ibex_rotate -o -u 0.701247,-0.650044,-0.292739 -w
> ibex-sun -t 2013-02-05T08:17:29.464Z
> Quaternion +0.000000,+0.000000,+0.000000,**+0.000000
> points axis +1.000000,+0.000000,+0.000000
> towards ECI +0.701247,-0.650044,-0.292739
> which is R.A. +317.170 Decl. -17.022
> missing R.A. +318.957 Decl. -15.925 (ibex-sun)
> error is R.A. +1.787 Decl. +1.097
> for a total 2.034 deg
>
> No -Lo O-mode Commands.
>
> No overlap to orbit 193 commands apparent by manual check or by
> reference to http://ibex.unh.edu/cgi-bin/**ats.cgi<http://ibex.unh.edu/cgi-bin/ats.cgi>.
>
> Command Approval Checklist attached.
>
> -Hi Neg collimator back to operating at nominal voltage.
>
> Pointing is in -Lo ISM mode operations during January, so sun
> angles are lower and will continue to be lower through January. Note that
> Sun-pointing maneuver means sun angles for descending arc are intermediate
> between desired sun-pointing and standard angles.
>
>
> At 0:30 -0500 1/9/13, Tim Perry wrote:
>
>> All,
>> Attached are the products for Orbit 194 VER 2. Battery balancing was
>> omitted from the first ATS. All questions and approvals need to be in by
>> cob Jan 12, 2013.
>> Thanks
>> Tim
>>
>
> --
> - 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.
--
Sheral R. Wesley
SPVR., Satellite Operations
IBEX Mission OPS
(304) 279-6678
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