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First Call for Proposals for the MWA

4 March 2013, Murchison Radio-astronomy Observatory, Western Australia – The first Murchison Widefield Array (MWA) Call for Proposals is now open, from March 1 to May 1, 2013. The proposal template is available from and should be read in conjunction with the MWA Announcement of Opportunity (AO), available from the same URL.

The MWA, an SKA precursor instrument, is a next generation low frequency radio telescope, located on the pristine site of CSIRO’s Murchison Radio-astronomy Observatory in Western Australia. This first Call covers the observing period designated 2013-B (July – December 2013). A total of 600 hours of observing time is available during this period, as detailed in the AO documentation (in the Guaranteed Time and Director’s Discretionary Time categories – note that no Open Access allocation is available in 2013-B).

As outlined in the AO, the final pre-operations briefing for potential users was held on February 25/26, following the close of the Expression of Interest stage (January/February 2013).  Notes from the pre-operations meeting, plus MWA Management Team presentations made during that meeting, are available at

At this stage, the timeline to the commencement of MWA operations is as follows:
May 1, 2013: proposals due with MWA Director;

Mid May, 2013: MWA Time Allocation Committee (TAC) meets to assess and rank proposals, with recommendation to MWA Director;

Early June, 2013: proposal teams notified of TAC outcomes;

Mid June, 2013: proposals are scheduled for observation during 2013-B;

July, 2013: observations for 2013-B commence.

The MWA SKA precursor radio telescope, located on the radio quiet zone of Murchison Radio-astronomy Observatory in Western Australia. Credit: SKA, W. Garnier (SKA)