ADDWCS - Creates the valid WCS in the FITS headers of raw data

Description:

This recipe uses the existing hotpotch of UKIRT and AAT imaging headers of raw data to make a new set of headers which define a valid world co-ordinate system, using the AIPS convention.

Notes:

• For IRCAM, old headers are reordered and structured with headings before groups of related keywords. The comments have units added or appear in a standard format. Four deprecated headers are removed. FITS-violating headers are corrected. Spurious instrument names are changed to IRCAM3.

Output Data :

• The corrected frame in <i><date>_<obs_number>_raw, where <i> is the frame prefix. For IRIS2, the corrected frame is in <date><obs_number>, where <date> is in the form ddmmm. If the file already exists, it's only updated.

Implementation Status:

• The processing engines are from the Starlink package KAPPA.

• Uses the Starlink NDF format.

• History is recorded within the data files.