grss.fit.fit_utils

Utilities for the GRSS orbit determination code

Functions

et2mjd(ephem_time)	Converts JPL NAIF SPICE Ephemeris time to Modified Julian Date.
get_codes_dict()	Creates a dictionary of MPC codes and their corresponding longitude, geocentric latitude, and distance from the geocenter
get_mpc_observatory_info()	Read in the MPC observatory codes and return them as a dictionary.
get_observer_info(obs_df)	Creates a list of observer information for each observer code for passing into a libgrss PropSimulation object
get_radar_codes_dict()	Creates a dictionary of radar codes and their corresponding longitude, geocentric latitude, and distance from the geocenter
get_sbdb_elems(tdes[, cov_elems])	Get a set of desired elements for small body from SBDB API
get_sbdb_info(tdes)	Return small body orbit information from JPL SBDB API
get_sbdb_raw_data(tdes)	Get json data from JPL SBDB entry for desired small body
get_similarity_stats(sol_1, cov_1, sol_2, cov_2)	Get similarity statistics between two solutions.
mjd2et(mjd)	Converts Modified Julian Date to JPL NAIF SPICE Ephemeris time.
parallax_to_lat_lon_alt(lon, rho_cos_lat, ...)	Convert parallax constants to geocentric longitude, latitude, and distance.