add_astrometry¶

msumastro.header_processing.astrometry.add_astrometry(filename, overwrite=False, ra_dec=None, note_failure=False, save_wcs=False, verify=None, try_builtin_source_finder=False)[source]¶

Add WCS headers to FITS file using astrometry.net

Parameters:

overwrite : bool, optional

Set True to overwrite the original file. If False, the file astrometry.net generates is kept.

ra_dec : list or tuple of float or str

(RA, Dec) of field center as either decimal or sexagesimal; also limits search radius to 1 degree.

note_failure : bool, optional

If True, create a file with extension “failed” if astrometry.net fails. The “failed” file contains the error messages genreated by astrometry.net.

try_biultin_source_finder : bool

If true, try using astrometry.net’s built-in source extractor if sextractor fails.

save_wcs :

verify :

See call_astrometry()

Returns:

bool

True on success.

Notes

Tries a couple strategies before giving up: first sextractor, then, if that fails, astrometry.net’s built-in source extractor.

It also cleans up after astrometry.net, keeping only the new FITS file it generates, the .solved file, and, if desired, a ”.failed” file for fields which it fails to solve.

For more flexible invocation of astrometry.net, see call_astrometry()