roman_header

grizli.fake_image.roman_header(ra=53.1592277508136, dec=-27.782056346146, pa_aper=128.589, naxis=(4096, 4096), **kwargs)[source]

Make WFIRST/Roman WFI header

Parameters:
ra, dec : float, float

Coordinates of the center of the image

pa_aper : float

Position angle of the y-axis of the detector

filter : str

Blocking filter to use.

naxis : (int,int)

Image dimensions

Returns:
h : astropy.io.fits.Header

FITS header with appropriate keywords

wcs : astropy.wcs.WCS

WCS specification (computed from keywords in h).

Notes

WFIRST/Roman G150 Grism

Current config file has no field dependence, so field size can be anything you want in naxis.