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Re: [Orekit Users] Ecliptic Frame

I haven't started work on it, so if you'd like to take it please feel free too.  While I could build off of what you have it's probably easier for you to integrate it directly yourself.  I'll pick up the next one ;).  


On Fri, Mar 7, 2014 at 10:35 AM, Evan Ward <evan.ward@nrl.navy.mil> wrote:
Ok. I already had a rough implementation and test that you are welcome
to build off of, if you like. [1] It doesn't take into account the
secular rate in the obliquity of the ecliptic.

Cheers,
Evan

[1] https://www.orekit.org/forge/issues/166

On Thu 06 Mar 2014 09:10:35 PM EST, Hank Grabowski wrote:
> I can take this one.
>
>
> On Thu, Mar 6, 2014 at 11:33 AM, paulcefo <paulcefo@buffalo.edu
> <mailto:paulcefo@buffalo.edu>> wrote:
>
>     Luc,
>
>     The attached abstract has been sitting in my "to do" box for
>     several years.
>
>     The overall project has implications with respect to coordinate
>     systems.
>
>     best regards,
>
>     Paul
>
>     --
>     Dr. Paul J. Cefola
>     Consultant in Aerospace Systems, Spaceflight Mechanics, &
>     Astrodynamics
>     Adjunct Faculty, Dept. of Mechanical and Aerospace Engineering,
>     University at Buffalo (SUNY)
>
>     4 Moonstone Way
>     Vineyard Haven, MA 02568
>     USA
>
>     508-696-1884 <tel:508-696-1884> (phone on Martha's Vineyard)
>     978-201-1393 <tel:978-201-1393> (cell)
>
>     paulcefo@buffalo.edu <mailto:paulcefo@buffalo.edu>
>     paul.cefola@gmail.com <mailto:paul.cefola@gmail.com>
>
>
>     On 03/06/2014 9:24 am, Luc Maisonobe wrote:
>
>         Le 06/03/2014 15:03, Hank Grabowski a écrit :
>
>             While we are at it we could add some additional central
>             body inertial
>             frames as well, at least for now Mars and Moon would be
>             some good
>             additions...
>
>
>         They are already available, see
>         CelestialBody.__getInertiallyOrientedFrame
>         and CelestialBody.__getBodyOrientedFrame. The only
>         implementation we have
>         for CelestialBody is to load either JPL or Inpop ephemerides,
>         and on top
>         of this we add the IAU poles and prime meridian models.
>
>         Luc
>
>
>
>             On Thu, Mar 6, 2014 at 8:59 AM, Luc Maisonobe
>             <Luc.Maisonobe@c-s.fr <mailto:Luc.Maisonobe@c-s.fr>
>             <mailto:Luc.Maisonobe@c-s.fr
>             <mailto:Luc.Maisonobe@c-s.fr>>> wrote:
>
>                 Le 06/03/2014 14:55, Hank Grabowski a écrit :
>                 > That would be a great feature!
>
>                 Sure, and quite easy to do.
>
>                 If anybody want to give it  try, just open an issue
>             and attach a patch
>                 with the contribution.
>
>                 best regards,
>                 Luc
>
>                 >
>                 >
>                 > On Thu, Mar 6, 2014 at 8:50 AM, Evan Ward
>             <evan.ward@nrl.navy.mil <mailto:evan.ward@nrl.navy.mil>
>                 <mailto:evan.ward@nrl.navy.mil
>             <mailto:evan.ward@nrl.navy.mil>__>
>                 > <mailto:evan.ward@nrl.navy.mil
>             <mailto:evan.ward@nrl.navy.mil>
>             <mailto:evan.ward@nrl.navy.mil
>             <mailto:evan.ward@nrl.navy.mil>__>>>
>                 wrote:
>                 >
>                 >     Hi,
>                 >
>                 >     Does Orekit provide a reference frame aligned
>             with the
>                 ecliptic? Maybe I
>                 >     just missed it, but I couldn't find one in the
>             FramesFactory
>                 or the
>                 >     CelestialBodyFactory.
>                 >
>                 >     Best Regards,
>                 >     Evan
>                 >
>                 >
>
>