AMiBA

AMiBA
	AMiBA during construction in 2006
Location(s)	Hawaii County, Hawaii
Coordinates	19°32′10″N 155°34′31″W / 19.536194°N 155.575278°W
Altitude	3,396 m (11,142 ft)
Wavelength	3 mm (100 GHz)
Built	2000–2006
First light	September 2006
Telescope style	cosmic microwave background experiment; radio telescope; radio interferometer
Diameter	0.576 m (1 ft 10.7 in)
Angular resolution	6 arcminute, 2 arcminute
Mounting	Stewart platform
Enclosure	retractable roof
Website	ytla.asiaa.sinica.edu.tw
	Location of AMiBA
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The Yuan-Tseh Lee Array for Microwave Background Anisotropy, also known as the Array for Microwave Background Anisotropy (AMiBA), is a radio telescope designed to observe the cosmic microwave background and the Sunyaev-Zel'dovich effect in clusters of galaxies.

After completion of the SZE campaigns, the telescope has been repurposed to study the evolution of molecular gas throughout the history of the Universe. It is now referred to as the Yuan-Tseh Lee Array (YTLA).

It is located on Mauna Loa in Hawaii, at 3,396 metres (11,142 ft) above sea level.

AMiBA was originally configured as a 7-element interferometer atop a hexapod mount. Observations at a wavelength of 3 mm (86–102 GHz) started in October 2006, and the detections of six clusters by the Sunyaev-Zel'dovich effect were announced in 2008. In 2009 the telescope was upgraded to 13 elements, and it is capable of further expansion to 19 elements. AMiBA is the result of a collaboration between the Academia Sinica Institute of Astronomy and Astrophysics, the National Taiwan University and the Australia Telescope National Facility, and also involves researchers from other universities.