SKA-Mid Simulated Radio Continuum images

This page provides the simulated SKA-Mid radio continuum data products

This dataset consists of 9 files, with the format of FITS images. Each file is a simulated SKA continuum image in total intensity of the same field at 3 frequencies (560 MHz, representative of SKA Mid Band 1, 1.4 GHz, representative of SKA Mid Band 2 and 9.2 GHz, representative of SKA Mid Band 5) and 3 telescope integrations (8, 100, 1000 h as representative of a single, medium-depth and deep integration, respectively). Truth catalogues containing all sources injected in the simulation are also available. This dataset has been designed to test source finding and characterization in radio continuum, and was used in the SKA science data challenge 1. A description of the simulation is presented in Bonaldi et al. (2021), arXiv:2009.13346

 

Zoom-in of the 1.4 GHz maps, showing the same region of the sky with different telescope integration: 8, 100, 1000 h left to right.
Zoom-in of the 1.4 GHz maps, showing the same region of the sky with different telescope integration: 8, 100, 1000 h left to right.

Data

 
File descriptionFile sizeRepository link
560 MHz, 8 hours4 GBDOWNLOAD
560 MHz, 100 hours4 GBDOWNLOAD
560 MHz, 1000 hours4 GBDOWNLOAD
1400 MHz, 8 hours4 GBDOWNLOAD
1400 MHz, 100 hours4 GBDOWNLOAD
1400 MHz, 1000 hours4 GBDOWNLOAD
9200 MHz, 8 hours4 GBDOWNLOAD
9200 MHz, 100 hours4 GBDOWNLOAD
9200 MHz, 1000 hours4 GBDOWNLOAD

Ancillary Data

File descriptionFile sizeRepository link
560 MHz, primary beam300 KBDOWNLOAD
560 MHz, synthesized beam4 GBDOWNLOAD
1400 MHz, primary beam300 KBDOWNLOAD
1400 MHz, synthesized beam4 GBDOWNLOAD
9200 MHz, primary beam300 KBDOWNLOAD
9200 MHz, synthesized beam4 GBDOWNLOAD

 

Input catalogues

File descriptionFile sizeRepository link
560 MHz, truth catalogue870 MBDOWNLOAD
1400 MHz, truth catalogue230 MBDOWNLOAD
9200 MHz, truth catalogue13 MBDOWNLOAD

 

Scoring code

You are welcome to repeat the SDC1 challenge exercise by yourself by using our scoring pipeline. For the pipeline to work, the format of the catalogues needs to be strictly as in the Format example

This research used the facilities of the Italian Center for Astronomical Archive (IA2) operated by INAF

Last modified on 04 September 2026