Cosmic Anisotropy Telescope

Stitched panorama of the CAT enclosure in June 2014

The Cosmic Anisotropy Telescope (CAT) was a three-element interferometer for cosmic microwave background radiation (CMB/R) observations at 13 to 17 GHz, based at the Mullard Radio Astronomy Observatory. In 1995, it was the first instrument to measure small-scale structure in the cosmic microwave background. When the more sensitive Very Small Array came online, the CAT telescope was decommissioned in a ceremonial bonfire.

External links

• Cosmic Anisotropy Telescope (CAT) online
• The first detection of small-scale structure in the cosmic microwave background
• Press release from 1995 describing first measurements of small-scale structure in the cosmic microwave background
• The CAT enclosure on Google Maps

Cosmic microwave background radiation (CMB) Discovery of CMB radiation Timeline of CMB astronomy Effects Cosmic variance Diffusion damping Recombination Sachs–Wolfe effect Sunyaev–Zel'dovich effect Thomson scattering 9-year WMAP image (2012) of the CMB. Experiments Space COBE Planck RELIKT-1 SPOrt WMAP Balloon Archeops ARCADE BOOMERanG EBEX MAXIMA QMAP Spider TopHat Ground ABS ACBAR ACT AMI AMiBA APEX ATCA BICEP BICEP2 BICEP3 BIMA CAPMAP CAT CBI CLASS Clover COSMOSOMAS DASI FOCUS GUBBINS Keck Array MAT OVRO POLARBEAR QUaD QUBIC QUIET QUIJOTE RGWBT Saskatoon SPT SZA Tenerife VSA

Coordinates: 52°09′58″N 0°02′02″E / 52.166°N 0.034°E / 52.166; 0.034