The routine reads the FITS extension from an NDF and returns an AST pointer to a FitsChan which contains this information. The information may then be accessed using routines from the AST library (SUN/211).

CALL KPG_GTFTS( INDF, FCHAN, STATUS )

INDF = INTEGER (Given)

FCHAN = INTEGER (Returned)

STATUS = INTEGER (Given and Returned)

• It is the caller’ s responsibility to annul the AST pointer issued by this routine (e.g. by calling AST_ANNUL) when it is no longer required.

• If this routine is called with STATUS set, then a value of AST__NULL will be returned for the FCHAN argument, although no further processing will occur. The same value will also be returned if the routine should fail for any reason.

• Status is set to KPG__NOFTS if no FITS extension is found.