get_catalog_index

stsynphot.catalog.get_catalog_index(gridname)

Extract catalog index (grid parameters).

It is read once and then cached until the cache is cleared explicitly using reset_cache().

Parameters:

gridnamestr

See grid_to_spec() for supported grids. Any other input is assumed to be custom grid stored in crgrid$ as expected by irafconvert().

Returns:

cat_indexlist

List of [t_eff, metallicity, log_g, filename].

catdirstr

Directory containing the requested catalog.