 Atacama Submillimeter Telescope Experiment | |
| Alternative names | ASTE |
|---|---|
| Location(s) | Atacama Desert |
| Coordinates | 22°58′17″S67°42′10″W / 22.9714°S 67.7028°W /-22.9714; -67.7028 |
| Altitude | 4,800 m (15,700 ft) |
| Wavelength | 0.1 mm (3.0 THz)–1.0 mm (300 GHz) |
| Diameter | 10 m (32 ft 10 in) |
| Website | alma |
  Location of Atacama Submillimeter Telescope Experiment | |
 Related media on Commons | |
TheAtacama Submillimeter Telescope Experiment (ASTE) is a 10-meter-diameter antenna built byMitsubishi Electric as a preprototype forALMA.
The ASTE was deployed to its site on Pampa La Bola, near Cerro Chajnantor and theLlano de Chajnantor Observatory in northern Chile.[1] The antenna shows excellent performance including a surface accuracy of 19 μm (0.00075 in) r.m.s.[2] The telescope is remotely controllable from multiple sites through satellite connections and the Internet. It is operated by theNational Astronomical Observatory of Japan and theUniversity of Tokyo,Nagoya University, andOsaka Prefecture University, in cooperation with theUniversidad de Chile.
Initially operating at 240 GHz using a focal-plane bolometer array, the telescope was upgraded in 2018 with a heterodyne receiver system operating at 345 GHz and 460 GHz.[3]
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