Expected Performance of the EUSO-SPB2 Fluorescence Telescope

Discussion timeslot (ZOOM-Meeting): 16. July 2021 - 18:00
ZOOM-Meeting URL: https://icrc2021.desy.de/pf_access_abstracts
Corresponding Session: https://icrc2021-venue.desy.de/channel/Presenter-Forum-1-Evening-All-Categories/48
Abstract:
'The Extreme Universe Space Observatory Super Pressure Balloon 2 (EUSO-SPB2) is under development, and will prototype instrumentation for future satellite-based missions, including the Probe of Extreme Multi-Messenger Astrophysics (POEMMA). EUSO-SPB2 will consist of two telescopes. The first is a Cherenkov telescope (CT) being developed to identify and estimate the background sources for future (below-the-limb) very high energy (E larger 10 PeV) astrophysical neutrino observations, as well as above the limb cosmic ray induced signals. The second is a fluorescence telescope (FT) being developed for detection of Ultra High Energy Cosmic Rays (UHECRs). In preparation for the expected launch in 2023, extensive simulations, tuned by preliminary laboratory measurements have been performed to understand the capabilities of the FT. The energy threshold has been estimated at 10$^{18.2}$eV, and results in a maximum detection rate at 10$^{18.5}$eV, taking into account the shape of the UHECR spectrum. EUSO-SPB2 will be the first opportunity to perform a shower reconstruction from near-space. Using the JEM-EUSO OffLine framework, the reconstruction capabilities of the instrument have been estimated. In addition, online software has been developed based on the simulations as well as experience with previous EUSO missions. This includes a level 1 trigger to be run on the limited flight hardware, as well as a deep learning based prioritization algorithm in order to accommodate the balloon’s telemetry budget. These techniques could be used for future, space-based missions.'

Authors: George Filippatos | Matteo Battisti | Mario Bertaina | Francesca Bisconti | Johannes Eser | Fred Sarazin | Lawrence Wiencke | for the JEM-EUSO Collaboration
Collaboration: JEM-EUSO

Indico-ID: 330
Proceeding URL: https://pos.sissa.it/395/405