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.
2015: An ASKAP year to remember December 2015: It is a time to reflect on the major achievements of the ASKAP project in 2015, thanks to the project team staff across Australia, those on the ground at the MRO, and also our international collaborators.
New PAFs 'on the verge' of surpassing BETA December 2015: Commissioning activities with ASKAP’s newest receivers have produced an image from ‘the most beams yet’, with early data indicating the performance of the Mk II systems may be on the verge of surpassing the BETA telescope.