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6th of June 2024
A map of the sky showing the progress after 5 days of running the RACS-low3 data through the SPICE-RACS pipeline.
ASKAP Update for May
The ASKAP Update for May reports on plans to improve ASKAP’s processing efficiency, describes SPICE-RACS processing on CSIRO's Petrichor supercomputer, and outlines the goals of a Survey Science Project review workshop held in late May. SPICE-RACS is the Spectral and Polarisation in Cutouts of Extragalactic sources from RACS (SPICE-RACS) Since Data Release 1 (DR1), the SPICE-RACS team have been working to scale up and improve their processing pipeline so it can work with larger data volumes. SPICE-RACS aims to determine the rotation measures of extragalactic sources detected in RACS by creating cutouts with full linear polarisation calibration. DR1 involved a test region of 30 RACS-low fields, covering about 1300 square degrees. DR2 will be based on the entire RACS-low3 catalogue, covering an area larger than POSSUM, but with less sensitivity. To avoid conflicting with ASKAP’s primary operational workflow, the team have been running the processing pipeline on CSIRO’s Petrichor supercomputer. Although Petrichor is smaller than ASKAP’s partition on Setonix, it has ample capacity to process ASKAP continuum data. Current estimates predict that SPICE-RACS DR2 will include over 200,000 RMs up to a declination of +49 degrees. The image above shows the progress after 5 days of running the RACS-low3 data through the SPICE-RACS pipeline. (Image credit: Alec Thomson)



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