Main Survey (ongoing)

ASKAP started observing EMU full survey fields in November 2022.

Pilot Survey (2019-2022)

EMU Pilot Survey covers a total area of 270 sq.deg. centred on RA 21 h, Dec -55 deg. This area is covered by the Dark Energy Survey DR1, and thus has extensive multiwavelength coverage. The Pilot Survey is composed of 10 pointing fields, each of which was observed for 10 hrs at 943 MHz with an instantaneous 288 MHz bandwidth. The survey data are being processed with Briggs imaging weighting of robust 0, resulting in angular resolution of 12 x 10 arcsec, and rms noise levels of 25 microJy / beam.

Early Science (2017-2019)

ASKAP Early Science started in 2017, when at least 16 antennas were equipped with commissioned and debugged MkII PAFs (ASKAP-16). The goals of the Early Science period were predominantly to commission ASKAP, test and demonstrate ASKAP capabilities. A number of well studied fields were observed during EMU ES period, including Galactic Plane, GAMA-23, Elais-S1, CDFS, and 2000 sq.deg field for EMU early cosmological analyses, for a total of 210 observing hours in multiple ASKAP frequency bands.

Science Verification Period (2016)

ASKAP Science Verification period took place in 2016, when 12 ASKAP antennas were equipped with MkII PAFs (ASKAP-12). EMU observed a number of well known fields (GAMA-23, SMC, SPT, CDFS) for a total of 239 hrs in multiple frequency bands, to test ASKAP early performance.