Re: [Orekit Developers] NRL MSISE

[pascal parraud <pascal.parraud@c-s.fr>]

Hi Evan,

Le 21/09/2016 à 14:43, Evan Ward a écrit :
> Pascal,
>
> Great work with the NRL MSISE atmosphere. I think it adds a significant capability to the library. I do have a couple questions about the implementation.
Thanks, I also think NRLMSISE-00 is a significant addition as this model can compute density down to the ground, unlike most others atmosphere models.
By the way, I'm also working on the JB2008 model in order to give more up-to-date capabilities to Orekit for calculating drag force.
> The comment on NRLMSISE00InputParameters.getDailyFlux(date) states it returns the flux for the previous day. Does this mean 24 hours prior to the supplied date?
Well, I'm not sure about that (I just copy the comments from the legacy code) and I didn't find in the literature any clear explanation about F10.7 input data, an other issue being how to get 81 days average F10.7 if you need values in the future ?
All information/experience about these data is welcome ...
> Several classes related to atmospheres changed packages, which is a change to classes that a user would commonly use in a backward incompatible way. Is the next Orekit release going to be 9.0? I think the reorganization is a good thing. I just want to make sure people were not expecting a 8.1 release.
Luc and I were wondering about that, as it looks like a minor change (but backward incompatible, you're right) in a minor release (if we don't add others features).
What do you prefer: being strict on release naming rules or being a bit flexible for minor changes ?
> Best Regards,
> Evan
Best Regards,
Pascal