Radio operator observatory of Hat Creek

The radio operator observatory of Hat Creek , or HCRO (in English: Hat Creek Radio Observatory ) is a Radiotélescope controlled by the Laboratory of Radioastronomy of the the University of California to Berkeley. It is located at 467 km in the North-East of San Francisco, with the latitude and longitude 121,4733 W and 40,8178 NR, at an altitude of 1280 m to the top of the sea level, in the Comté of Shasta.

History

The observatory was built in the years 1950 by the lately founded Laboratory of Radioastronomy. An antenna of 25 m was built in 1960, and remained operational up to 1993, when it crumbled during a storm.

The first experiments on astronomy starting from millimetre-length waves were carried out since this site, as from the years 1970, when an interferometer in two parts there was built. Between 1980 and 1985, an interferometer in three parts was built, to which one added 4 more antennas between 1990 and 1992. After the loss of the first antenna, three news was added. They constitute the unit BIMA. The interferometers were moved during spring 2005 to join other millimetre-length antennas, within the framework of the project Combined Array for Research in Millimeter-wave Astronomy (CARMA), and to allow construction on the site of the Allen Telescope Array (ATA).

See too

References

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