CSIRO's ASKAP Radio Telescope

CSIRO's new ASKAP antennas at the Murchison Radio-astronomy Observatory. Credit: CSIRO

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.

Early science results with ASKAP

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Latest News

Early test results from ground-based aperture array testing at the MRO using the Mk II PAF have indicated impressive system temperature across the ASKAP band. Credit: CSIRO. Tests on new ASKAP PAF indicate impressive system temperature
August 2014: The first results from ground-based system tests on the full-size Mk II PAF for ASKAP have indicated impressive system temperature across the ASKAP band.
Credit: CSIRO. Latest Commissioning Update reflects successful BETA activities
August 2014: Fantastic results continue to stream out from the six-antenna ASKAP engineering test array at the Murchison Radio-astronomy Observatory.
The Mk II PAF, during ground-based aperture array tests at the Murchison Radio-astronomy Observatory. Credit: CSIRO System tests underway on Mk II PAF at the MRO
August 2014: Initial ground-based system tests on the first full-size Mk II phased array feed receiver for ASKAP will generate valuable system performance data at the MRO.

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