gen_wavelength_header

sitelle.utils.gen_wavelength_header(h, axis, ax_num=3)

Generates a FITS wavelength header in Ansgtroms

Parameters:

• h (dict) – The header to update
• axis (1D ndarray) – The regular wavelength axis
• ax_num (int) – (Optional) The axis number to use in the header for the spectral dimmension. Default = 3

Returns:

h – Updated header

Return type:

dict