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.

1. Select Mode and Role:
2. Enter Search Criteria
Spatial Search & Name Resolver:NED first SIMBAD first
Radius: (0.1 arcsec - 6 deg)
Coordinates or object name, to be resolved by NED or SIMBAD. Examples: "DQ Tau",
"04h46m53.05s +17d00m00.2s Equ J2000", "182.24771 -17.86600 ga"
Search by OBJNAME keyword:
Enter desired object name (searches FITS keyword OBJNAME)
UT Observation Date(s):
mm/dd/yyyy or yyyymmdd - ranges allowed
Project ID:

Ex: 50