Re: [Orekit Users] computation of secular derivatives

[paulcefo <paulcefo@buffalo.edu>]

Quentin,

The partial derivatives of the averaged potential (due to the 
conservative perturbations) are required to construct the RHS of the 
mean element equations of motion in the DSST. So the information should 
be available interior to the DSST software.

Paul

--
Dr. Paul J. Cefola
Consultant in Aerospace Systems, Spaceflight Mechanics, & Astrodynamics
Adjunct Faculty, Dept. of Mechanical and Aerospace Engineering, 
University at Buffalo (SUNY)

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paulcefo@buffalo.edu
paul.cefola@gmail.com

On 01/26/2018 4:17 am, RHONE, Quentin [FR] wrote:
> Hi all,
> I am trying to compute secular derivative of orbital elements with
> high potential degree so that I cannot use an analytic formula.
> Is there a way to do it with Orekit ?
> I have tried do get mean elements derivatives from DSST
> computeMeanState method but the return state doesn't contain
> derivatives.
> Any suggestion will be welcome !
> Thank you in advance,
>
> Quentin
>
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