create_atm

lsst.ts.imsim.utils.create_atm(wl_um: float, fwhm_in_arcsec: float, grid_size: int | numpy.ndarray, pix_in_um: int, oversample: int, model: str = 'Gau', debug_level: int = 0) → ndarray

Calculate the weighting function for a certain atmosphere model.

Parameters

wl_umfloat

Wavelength in microns.

fwhm_in_arcsecfloat

Full width in half maximum (FWHM) in arcsec.

grid_sizeint or numpy.ndarray[int]

Size of grid. If it is the array, it should be (distance to center)^2. That means r2.

pix_in_umint

Pixel in um.

oversampleint

k times of image resolution compared with the original one.

modelstr, optional

Atmosphere model (“Gau” or “2Gau”). (the default is “Gau”.)

debug_levelint, optional

The higher value gives more information. (the default is 0.)

Returns

numpy.ndarray

Weighting function of atmosphere.