2 KOA ivo://msc.koa/hires Michelson Science Center W. M. Keck Observatory 2.2 KOA Administrator koaadmin@ipac.caltech.edu Catalog of echelle spectra The W. M. Keck Observatory Archive (KOA) serves level 0 (uncalibrated) observations made with the CCD mosaic upgrade to the High Resolution Echelle Spectrograph (HIRES), commissioned on the Keck Telescope in August 2004. The data are subject to the proprietary policy agreed upon by NASA and the California Association for Research in Astronomy (CARA). http://msc.caltech.edu/archives/koa/ Archive Research Infrared Optical