manual_alignment¶
- grizli.prep.manual_alignment(visit, ds9, reference=None, reference_catalogs=['SDSS', 'PS1', 'GAIA', 'WISE'], use_drz=False)[source]¶
Manual alignment of a visit with respect to an external region file
- Parameters
- visitdict
List of visit information from
parse_flt_files
.- ds9
DS9
DS9 instance for interaction. Requires
pyds9
and the extended methods inDS9
.- referencestr
Filename of a DS9 region file that will be used as reference. If None, then tries to find a local file based on the
visit['product']
.- reference_catalogslist
If no valid
reference
file provided or found, query external catalogs withget_radec_catalog
. The external catalogs will be queried in the order specified in this list.
- Returns
- Generates a file like
{{0}}.align_guess'.format(visit['product'])
that - the alignment scripts know how to read.
Note
- The alignment here is done interactively in the DS9 window. The script
- prompts you to first center the frame on a source in the image itself,
- which can be done in “panning” mode. After centering, hit <enter> in the
- command line. The script will then prompt to center the frame on the
- corresponding region from the reference file. After recentering, type
- enter again and the output file will be computed and stored.
- If you wish to break out of the script and not generate the output file,
- type any character in the terminal at the first pause/prompt.
- Generates a file like