Note: As of end of semester 2012A, the Keck Interferometer is no longer operational. KI data are now archived in the Keck Observatory Archive and may be obtained here.
Located atop Mauna Kea, Hawaii, the Keck Interferometer (KI) uses the world's largest pair of optical telescopes, the Keck Telescopes, to create an interferometer with a sensitivity unmatched by any ground-based instrument of its type.
Using a nulling technique, KI is being used to directly observe dust known as zodiacal dust around nearby stars to provide information about planet formation, and to help plan how to reduce noise from exozodiacal dust for future missions like TPF.
KI has been operational in Keck-Keck visibility amplitude mode since March 2001.
The NExScI is responsible for developing and operating the Science Operations System (SOS) for KI - including the program solicitation, user interface and consultation, data infrastructure, and (jointly with WMKO) science operations for KI. Information on NExScI user services for KI is given here.
Click here for a bibliography of publications based on KI observations.
More information on KI is also available here: NExScI Support Services for KI.