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grss.fit.fit_simulation.FitSimulation

grss.fit.fit_simulation.FitSimulation#

class grss.fit.fit_simulation.FitSimulation(x_init, obs_df, cov_init=None, n_iter_max=10, de_kernel=441, nongrav_info=None, events=None, simulated_obs=None)#

Bases: object

Class to perform an orbit fit simulation.

__init__(x_init, obs_df, cov_init=None, n_iter_max=10, de_kernel=441, nongrav_info=None, events=None, simulated_obs=None)#

Constructor of the FitSimulation class.

Parameters:

  • x_init (dict) – Initial guess of the state vector.

  • obs_df (pandas DataFrame) – Observation data for the orbit fit

  • cov_init (array, optional) – Initial covariance matrix, by default None

  • n_iter_max (int, optional) – Number of maximum iterations to correct the orbit estimate, by default 10

  • de_kernel (int, optional) – SPICE kernel version, by default 441

  • nongrav_info (dict, optional) – Dictionary containing the non-gravitational parameters, by default None

  • events (list, optional) – List of lists containing impulsive maneuvers, by default None

  • simulated_obs (dict, optional) – Dictionary containing simulated observation data, by default None

Returns:

None – None

Return type:

NoneType

Methods

__init__(x_init, obs_df[, cov_init, ...])

Constructor of the FitSimulation class.

filter_lsq([verbose])

Performs a least-squares fit on the observations.

plot_summary([auto_close])

Plots a summary of the orbit fit calculations.

print_summary([iter_idx, out_stream])

Prints a summary of the orbit fit calculations at a given iteration.

save(filename)

Saves the FitSimulation log to a file.
filter_lsq(verbose=True)#

Performs a least-squares fit on the observations.

Parameters:

verbose (bool, optional) – Flag for printing the iteration information while fitting, by default True.

Returns:

None – None

Return type:

NoneType

plot_summary(auto_close=False)#

Plots a summary of the orbit fit calculations.

Parameters:

auto_close (bool, optional) – Flag to automatically close the figure, by default False

Returns:

None – None

Return type:

NoneType

print_summary(iter_idx=None, out_stream=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>)#

Prints a summary of the orbit fit calculations at a given iteration.

Parameters:

iter_idx (int, optional) – The iteration number to print the summary for, by default -1.

Returns:

None – None

Return type:

NoneType

save(filename)#

Saves the FitSimulation log to a file.

Parameters:

filename (str) – The filename to save the log to.

Returns:

None – None

Return type:

NoneType

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