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Keck Array Overview

The Keck Array is a suite of telescopes designed to measure the Cosmic Microwave Background polarization at high precision in search of the B-mode signature of inflation. Each Keck telescope duplicates the BICEP2 detector and optical design inside a compact, pulse tube cooled cryostat. This design allows up to five identical telescopes to be deployed on the DASI mount, located at the Martin A. Pomerantz Observatory at Amundsen-Scott South Pole Station.

News from the Pole

The Keck Array was deployed during the Austral summer of 2010-2011. Three receivers were installed in 2011, with two additional receivers following in 2012. From 2011 to 2013, all receivers observed at 150 GHz. From 2014-2015, two receivers operated at 95 GHz. In 2015, two more were converted to 220 GHz.

All papers and data are available at

Most Recent Image from the South Pole Web Cam

Most Recent South Pole Image

Image from Earth System Research Lab, NOAA.

This material is based upon work supported by the National Science Foundation.
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s)
and do not necessarily reflect the views of the National Science Foundation.
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