Sky components

ska_sdp_func_python.sky_component.operations Module

Functions to manage sky components operations.

Functions

`apply_beam_to_skycomponent`(sc, beam[, ...])	Apply a primary beam to a SkyComponent.
`apply_voltage_pattern_to_skycomponent`(sc, vp)	Apply a voltage pattern to a SkyComponent.
`filter_skycomponents_by_flux`(sc[, flux_min, ...])	Filter sky components by stokes I flux.
`find_nearest_skycomponent`(home, comps)	Find the nearest component to a given direction.
`find_nearest_skycomponent_index`(home, comps)	Find the nearest component in a list to a given direction (home).
`find_separation_skycomponents`(comps_test[, ...])	Find the matrix of separations for two lists of components.
`find_skycomponents`(im[, fwhm, threshold, ...])	Find gaussian components in Image above a certain threshold as SkyComponent.
`find_skycomponent_matches`(comps_test, comps_ref)	Match a list of candidates to a reference set of SkyComponents.
`find_skycomponent_matches_atomic`(comps_test, ...)	Match a list of candidates to a reference set of SkyComponents.
`fit_skycomponent`(im, sc, **kwargs)	Fit a two-dimensional Gaussian skycomponent using astropy.modeling.
`fit_skycomponent_spectral_index`(sc)	Fit the spectral index for a multi frequency SkyComponent.
`image_voronoi_iter`(im, components)	Iterate through Voronoi decomposition, returning a generator yielding fullsize images.
`insert_skycomponent`(im, sc[, insert_method, ...])	Insert a SkyComponent into an Image.
`partition_skycomponent_neighbours`(comps, targets)	Partition sky components by nearest target source.
`remove_neighbouring_components`(comps, distance)	Remove the faintest of a pair of components that are within a specified distance.
`select_components_by_separation`(home, comps)	Select components with a range in separation.
`select_neighbouring_components`(comps, ...)	Assign components to nearest in the target.
`voronoi_decomposition`(im, comps)	Construct a Voronoi decomposition of a set of components.

ska_sdp_func_python.sky_component.taylor_terms Module

SkyComponent functions using taylor terms in frequency.

Functions

`calculate_skycomponent_list_taylor_terms`(sc_list)	Calculate frequency taylor terms for a List of SkyComponents.
`find_skycomponents_frequency_taylor_terms`(...)	Find skycomponents by fitting to moment0, fit polynomial in frequency, return in frequency space.
`gather_skycomponents_from_channels`(sc_list)	Gather a SkyComponent list from [chan][source] to [source].
`interpolate_skycomponents_frequency`(sc_list)	Smooth SkyComponent fluxes by fitting polynomial in frequency.
`transpose_skycomponents_to_channels`(sc_list)	Transpose a SkyComponent list from [source,chan] to [chan,source].