Keck Interferometer Data Access Service
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 Keck Interferometer (KI) operated from 2002 to 2012. Please use the form below to search for publicly-released KI data. The KI data are served in the form of nightly gzipped-tar files. Information about the Keck Interferometer and about the data file contents and formats may be found at the NExScI KI Support page. The nightly data packages contain "Level 1" files, which require external calibration, for example using the Calib software. For NULLING mode corresponding to nights that were allocated to the NASA Exozodi Key Science (Feb 2008 to Jan 2009) the data packages also contain externally calibrated "Level 2" data files.
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).
