The Rapid ASKAP Continuum Survey (RACS) is a widefield, wideband, snapshot survey, covering almost 90% of the sky, with multiple observing epochs in three frequency between 700 and 1800 MHz. Duchesne et al. describe the third major epoch at 1655.5 MHz, “RACS-high”, and the subsequent imaging and catalogue data release. From the 1493 images covering the sky up to declination of +48 degrees, a catalogue of 2,677,509 radio sources is presented. The catalogue is constructed from images with a median root-mean-square noise of ~195 micro-jansky per PSF (point-spread function), and a median angular resolution of 11.8 arcseconds by 8.1 arcseconds. All data products from RACS-high, including calibrated visibility datasets, images from individual observations, full-sensitivity mosaics, and the all-sky catalogue are available at the CSIRO ASKAP Science Data Archive. While the survey primarily detects extra-galactic objects, radio sources closer to home are also observed. The image above shows the planets of our solar system as they appear in the RACS-high images, in order of date observed (i.e., by scheduling block identifier — SBID). Jupiter appears elongated as emission from the radiation belt surrounding the planet is also prominent.
