Phase I

The Phase 1 MWA is a low frequency (70 – 300 MHz) interferometric radio telescope that uses 128 novel aperture array ‘tiles’ made of fixed dipole antennas and no moving parts to achieve massive imaged fields of view (610 sq. deg. at 150 MHz); reasonably high angular resolution (2 arcmin at 150 MHz); high performance imaging (due to a “large‐N” architecture: N=128); and exquisite surface brightness sensitivity (due to a large number of short baselines).

Phase 1 MWA construction was completed in December 2012, engineering and science commissioning was complete by 20 June 2013, and full science operations commenced in August 2013. Operations proceeded continuously since then until September 2017, with over 16 petabytes of data collected and stored at the Pawsey supercomputer facility in Perth.

The MWA is centred on 26°42'11.0"S, 116°40'13.42"E and has tiles located up to 4000m from the centre of the array. MWA tiles are connected to the MRO control building via a combination of surface-installed and buried signal transport infrastructure.

The surveyed coordinates of the different array configurations can be found here (note the multiple pages within the spreadsheet): MWA Tile Coordinates.xlsx

Image: Diagram showing the placement of the original 128 MWA tiles.