Overview
The W. M. Keck Observatory Archive (KOA) ingests and curates data from all active and decommissioned Keck instruments. The policy for public access to data for all current and future instruments is described in User Access and Proprietary Periods. KOA serves Contributed Datasets derived from Keck data and submitted by the community.
The data are validated and prepared for the archive at the W. M. Keck Observatory, and subsequently archived at the NASA Exoplanet Science Institute (NExScI).
The User Guide describes site navigation, searching, and data products for all instruments.
If you use KOA data in a publication, please acknowledge KOA and the PI(s) of the datasets you are using with the acknowledgement at the foot of this page.
KOA offers these methods of accessing data:
Please acknowledge the use of KOA by including this text in your publications:
This research has made use of the Keck Observatory Archive (KOA), which is operated by the W. M. Keck Observatory and the NASA Exoplanet Science Institute (NExScI), under contract with the National Aeronautics and Space Administration.
Please also acknowledge the PI(s) of datasets that have been obtained through KOA, and please contact the KOA Help Desk if you publish archival data.
If your research uses data reduced by the DEIMOS DRP or MOSFIRE DRP, please use the PypeIt Citation.
Privacy Policy Image Use Policy
The Keck Observatory Archive (KOA) is a collaboration between the NASA Exoplanet Science Institute (NExScI) and the W. M. Keck Observatory (WMKO). NExScI is sponsored by NASA's Exoplanet Exploration Program, and operated by the California Institute of Technology in coordination with the Jet Propulsion Laboratory (JPL).
