ASKAP is designed to be a high speed survey instrument with high dynamic range. This requires an extremely wide field-of-view interferometer with Phased Array Feeds (PAFs). The PAF has a total of 188 elements, 94 in each of two polarizations.
The specification for ASKAP is:
A total collecting area of approximately 4,000 square metres, from 36 antennas each 12 metres in diameter
System temperature less than 50 K
Frequency range from 700 MHz to 1.8 GHz
300 MHz instantaneous bandwidth
36 independent beams, each of about 1 square degree, yield overlapping to a 30 square degree field-of-view at 1.4 GHz
Maximum baseline of approximately 6 km
Full cross-correlation of all antennas
Possible remote array station capability located in NSW, approximately 3,000 km from the core site.
Search for transients aids BETA commissioning January 2015: To demonstrate the rapid, wide-area survey capability of the ASKAP telescope, a new image of the Tucana constellation has been produced, which is over three times the size of previous efforts.
Advancing astrophysics with the SKA January 2015: A number of science papers that form the basis of the new SKA science book, Advancing Astrophysics with the Square Kilometre Array, are being published on the arXiv.org astrophysics pre-print website.