Point Spread Function of EUSO-TA detector

EUSO detectors are high-resolution fluorescence telescopes dedicated for measurements of ultra-high energy cosmic rays (UHECR). EUSO-TA is a experiment dedicated for testing EUSO detectors and measurements of UHECR in coincidence with Telescope Array (TA) experiment. EUSO-TA is located in front of the Black Rock Mesa (BRM) detectors of the TA experiment. During a few campaigns in 2015 and 2016 signals coming from stars, airplanes, meteors, laser shots and cosmic rays were registered. The main goal of this work is determination of Point Spread Function of EUSO detectors which plays very important role in the interpretation of registered signal.