calculate_offsets¶
- sofia_redux.instruments.fifi_ls.spatial_calibrate.calculate_offsets(hdul, obsdate=None, flipsign=None, rotate=False)[source]¶
Calculate X and Y spatial offsets.
- Parameters:
- hdulfits.HDUList
- obsdatearray_like of int, optional
- flipsignbool, optional
- rotatebool, optional
If True, rotate by detector angle to set N up
- Returns:
- fits.HDUList
HDUList updated with ‘XS’, ‘YS’ spatial offsets, and ‘RA’, ‘DEC’ equatorial coordinates.