catalog_exposure_overlaps

grizli.prep.catalog_exposure_overlaps(ra, dec, exposure_footprints=[])

Count number of items in a list of footprints overlap with catalog positions

Parameters

ra, decarray-like

Celestial coordinates

exposure_footprintslist, None

An optional list of objects that can be parsed with sregion.SRegion. If specified, add a column nexp to the catalog corresponding to the number of entries in the list that overlap with a particular source position

Returns

nexparray-like

Count of elements in exposure_footprints that overlap with entries in ra, dec