simple_wcs

ginga.util.wcs.simple_wcs(px_x, px_y, ra_deg, dec_deg, px_scale_deg_px, rot_deg, cdbase=[1, 1])[source]

Calculate a set of WCS keywords for a 2D simple instrument FITS file with a ‘standard’ RA/DEC pixel projection.

Parameters

px_x: (ZERO-based) reference pixel of field in X (usually center of field)
px_y: (ZERO-based) reference pixel of field in Y (usually center of field)
ra_deg: RA (in deg) for the reference point
dec_deg: DEC (in deg) for the reference point
px_scale_deg_px: Pixel scale (deg/pixel); can be a tuple for different x,y scales
rot_deg: Rotation angle of the field (in deg)
cdbase: CD base

Returns