Utils (`sitelle.utils`)¶

Introduction¶

Miscellaneous functions, some of them are deprecated

Module grouping a bunch of utility functions used throughout the package.

`estimate_noise`(full_axis, full_spectrum, …)	Estimates the noise in an integrated spectra from sitelle, by measuring it outside of the filter range.
`gen_wavelength_header`(h, axis[, ax_num])	Generates a FITS wavelength header in Ansgtroms
`read_wavelength_axis`(header, axis)	Generates the right wavelength axis from a FITS header
`rebin`(map, binsize, type)	Method used to rebin a map.
`regular_wl_axis`(axis[, xlims])	Converts a wavenumber axis ([cm-1]) into a regular (==equally spaced) wavelength axis ([Angstroms])
`wavelength_regrid`(cube, rebinned, …[, header])	Interpolation of a 3D datacube on a regular wavelength axis.
`nm_to_cm1`(spectrum, nm_axis, out_axis)	Interpolates a spectrum from a wavelength axis to a wavenulber axis
`swap_header_axis`(h, a0, a1)	Swaps header keywords between dimensions.
`filter_star_list`(_star_list)	Very basic filter to remove stars position which are out of the image.
`measure_dist`(pos1, pos2)	Measure the distance (norm 2) between two positions, in units of the position.
`get_star_list`(star_list_deg, im, hdr, dxmap, …)	Computes the pixel positions of a list of positions in degrees.
`stats_without_lines`(spec, cube_axis, lines, …)	Computes statistics on a spectrum when region around lines are excluded.