The 2021 Open-Data release by the Pierre Auger Collaboration

PIERRE AUGER COLLABORATION; A. MARIAZZI

Berlin

Conferencia; 37th International Cosmic Ray Conference (ICRC2021); 2021

The Pierre Auger Observatory is used to study the extensive air-showers produced by cosmic raysabove 1017 eV. The Observatory is operated by a Collaboration of about 400 scientists, engineers,technicians and students from more than 90 institutions in 18 countries. The Collaboration iscommitted to the public release of their data for the purpose of re-use by a wide communityincluding professional scientists, in educational and outreach initiatives, and by citizen scientists.The Open Access Data for 2021 comprises 10% of the samples used for results reported at theMadison ICRC 2019, amounting to over 20000 showers measured with the surface-detector arrayand over 3000 showers recorded simultaneously by the surface and fluorescence detectors. Dataare available in pseudo-raw (JSON) format with summary CSV file containing the reconstructedparameters.A dedicated website is used to host the datasets that are available for download. Their detaileddescription, along with auxiliary information needed for data analysis, is given. An online eventdisplay is also available. Simplified codes derived from those used for published analyses areprovided by means of Python notebooks prepared to guide the reader to an understanding of thephysics results.Here we describe the Open Access data, discuss the notebooks available and show materialaccessible to the user at https://opendata.auger.org/.