An internationally owned and operated radio telescope that, when completed, will have a collecting area of 1 million square metres, a hundred times greater than the Very Large Array. At the heart of the SKA will be three core stations each 5 km across, one containing several thousand dish antennas of about 15 m aperture and the other two consisting of phased arrays for low and medium frequencies; together, these three core stations will comprise about 50% of the SKA’s total collecting area. Around this central region smaller stations consisting of a mixture of dishes and phased arrays will be arranged along spiral arms out to about 180 km. The remaining stations, each with about 20 dish antennas, will be positioned across continental distances, out to 3000 km or more. The SKA will operate over a broad spread of wavelengths from about 4 m (70 MHz) to 3 cm (10 GHz) and eventually to at least 1.2 cm (25 GHz). The final site for the SKA was expected to be selected in 2012, with completion by 2024.
http://www.skatelescope.org/ Official telescope website.
Subjects: Astronomy and Astrophysics.