The Design and Operation of The Keck Observatory Archive
  The Infrared Processing and Analysis Center (IPAC) and the W. M. Keck Observatory (WMKO) operate an archive for the Keck Observatory. At the end of 2013, KOA completed the ingestion of data from all eight active observatory instruments. KOA will continue to ingest all newly obtained observations, at an anticipated volume of 4 TB per year. The data are transmitted electronically from WMKO to IPAC for storage and curation. Access to data is governed by a data use policy, and approximately two-thirds of the data in the archive are public. 
G. Bruce Berriman, Christopher R. Gelino, Robert W. Goodrich, Jennifer   Holt, Mihseh Kong, Anastasia C. Laity, Jeffrey A. M...
astro-ph.IM