Next: WCSTools: Image World Coordinate System Utilities . ... Up: FITS-Flexible Image Transport System . ... The Deep Extra-galactic Imaging Multi-Object Spectrograph (DEIMOS) under construction for Keck II will employ a detector comprised of a mosaic of eight CCDs. World coordinate system (WCS) information is needed for mapping between FITS pixels and many other systems. ... As an alternative, we store the bulk of the WCS information in a separate FITS table associated with the image HDUs. ...