This routine is equivalent to CAT_CREAT except that it allows the catalogue to be specified using a GRP group expression (for instance, its name may be given within a text file, etc.), and it also ensures that any existing catalogue with the same name is deleted before the new one is created (so long as no FITS extension number is included in the catalogue specification). The first catalogue in the group expression is returned. Any other names in the group expression are ignored. Any modification elements in the supplied group expression will be treated literally.

CALL CTG_CREA1( PARAM, CI, NAME, STATUS )

PARAM = CHARACTER $\ast$ ( $\ast$ ) (Given)

CI = INTEGER (Returned)

NAME = CHARACTER $\ast$ ( $\ast$ ) (Returned)

STATUS = INTEGER (Given and Returned)