The PECASUS consortium is one of the four global centers providing space weather advisories according to ICAO regulations. These advisories are sent to airliners using the existing aeronautical fixed network for international aviation (AFS). For more information about that arrangement, see
https://www.icao.int/Newsroom/Pages/New-global-aviation-space-weather-network-launched.aspx
Information about current space weather advisories are available from the Civil Aviation Weather Service by the Finnish Meteorological Institute.
According to ICAO regulations space weather advisories shall be issued only when very strong space weather events occur. Nov 7, 2019, when the centers started their official operations, we were living the years of solar minimum. The solar maximum will occur about in 2025, but the activity of sun has already increased. In 2022, around 140 real SWX advisories were published globally to aviation users via ICAO network.
Besides PECASUS the three other services providing advisories are the Space Weather Prediction Center of NOAA (https://www.swpc.noaa.gov/), the ACFJ (http://www.bom.gov.au/aviation/space-weather-advisories/) consortium formed by Australia, Canada, France and Japan and the CRC consortium formed by China and Russian.
The four centers are doing space weather monitoring in two week shifts with one of the centers serving as the On Duty Center (ODC) and the others as Primary and Secondary backup-centers and Maintenance center.
