Custom Atmosphere Model (Jacchia Roberts)

[msv]

Hi, I am in the process of validating propagated spacecraft states by comparing it with STK. I noticed that STK uses the 'Jacchia-Roberts atmosphere model. I wondered if there is any way to implement this model on Orekit. Alternatively, is there any way to implement custom Atmosphere models? Any help is appreciated. Thank you!

[MaximeJ]

Hi @msv,

@msv

I wondered if there is any way to implement this model on Orekit. Alternatively, is there any way to implement custom Atmosphere models? Any help is appreciated. Thank you!

Yes, you need to implement the Atmosphere interface, mostly the method getDensity().

Doesn’t STK have another model that would correspond to one of Orekit? (NRL-MSISE00, DTM2000, Jacchia-Bowman 2008, Harris-Priester or exponential)

Cheers,
Maxime

[msv]

Hi Max,

STK does have other models that I could use to compare. For the particular case I’m working with, the propagation was done using Jacchia-Roberts. Thank you.