Document the order of the estimated parameters

[Carlos Fortuny-Lombraña]

Hi all,

I struggled slightly in finding the order of the estimated parameters. For my thesis, I need to estimate the periodic_spin_variations and polar_motion_amplitudes for Mars, but I did not find useful documentation for the order of these parameters. I know that periodic_spin_variations are 8 parameters and polar_motion_amplitudes are 20 parameters. But, I do need to understand the order of the periodic_spin_variations and polar_motion_amplitudes parameters for setting a specific uncertainty to each parameter. This part is missing in the documentation, and thus, I would kindly ask you whether someone can implement it. After some time, I found out that the order of the estimated parameters is located in its own class, which can be found in the include/tudat/astro/orbit_determination/estimatable_parameters directory. This was not straightforward to me, and it can be as well for other students.

Thank you in advance.

Greetings,
Carlos