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IceAct is an array of compact Imaging Air Cherenkov Telescopes at the icesurface as part of the IceCube Neutrino Observatory. The telescopes, featuringa camera of 61 silicon photomultipliers and fresnel-lens-based optics, areoptimized to be operated in harsh environmental conditions, such as at theSouth Pole. Since 2019, the first two telescopes have been operating in astereoscopic configuration in the center of IceCube's surface detector IceTop.With an energy threshold of about 10 TeV and a wide field-of-view, the IceActtelescopes show promising capabilities of improving current cosmic-raycomposition studies: measuring the Cherenkov light emissions in the atmosphereadds new information about the shower development not accessible with thecurrent detectors. First simulations indicate that the added information of asingle telescope leads, e.g., to an improved discrimination between fluxcontributions from different primary particle species in the sensitive energyrange. We review the performance and detector operations of the telescopesduring the past 3 years (2020-2022) and give an outlook on the future ofIceAct.

Three-year performance of the IceAct telescopes at the IceCube Neutrino Observatory