The SST-1M stereoscopic system

The Single-Mirror Small-Size Telescope (SST-1M) is an Imaging Atmospheric Cherenkov Telescope designed for detecting very high-energy gamma rays. With a compact design achieved through the adoption of silicon-photomultiplier pixels and a lightweight structure, SST-1M offers a large field of view of about 9° and features a mirror system of 4 m diameter with an optical PSF (at 80% of photon inclusion) of 0.08° on axis and 0.21° at 4° off-axis, and a fully digitizing readout almost deadtime free up to few kHz. The SST-1M achieved a high-performance and cost-effective solution for implementing an array of small-sized telescopes. The stereoscopic system of two SST-1Ms is temporarily installed at the Ondřejov Observatory in the Czech Republic. From an altitude of only about 510 m and in harsh meteorological conditions, the system is detecting galactic sources and flares of AGNs. The accurate calibration of the detector and the simulation benchmark are ongoing. The results of its performance are shown. A future final location is being considered and a future performance outlook is discussed.

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Publication Details

Published
2025-09-24
DOI
https://doi.org/10.22323/1.501.0771
Primary Topic
Planetary Science and Exploration
Type
article
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The SST-1M stereoscopic system

F. Cadoux, Anabella Araudo, Matteo Balbo, R. Walter et al.
Planetary Science and Exploration
article

The SST-1M stereoscopic system

F. Cadoux, Anabella Araudo, Matteo Balbo, R. Walter, J. Borkowski, Jiří Blažek, Vasyl Beshley, S. Casanova, Stella Boula, M. Jelínek, M. Ostrowski, A. Christov, Cyril Martin Alispach, E. Mach, Paweł Świerk, M. Hrabovský, A. Nagai, P. Trávnı́ček, Ł. Stawarz, M. Nikołajuk, I. Troyano Pujadas, J. Vícha, L. Chytka, Vladimír Novotný, V. Karas, M. Palatka, Vitalii Sliusar, M. Stodulska, J. Štrobl, J. Niemiec, Matthieu Heller, R. Moderski, R. Sternberger, L. Gibaud, D. della Volpe, Patrik Čechvala, M. Garczarczyk, T. Montaruli, Jakub Jurýšek, Dominik Neise, M. Prouza, T. Bulik, Krzysztof Ziȩtara, Ana Laura Muller, E. Lyard, Tomasz Gieras, Adam Muraczewski, Srija Reddy Muthyala, Krzysztof Nalewajski, Jerzy Michalowksi, J. Chudoba, Wojciech Marek, Stanislav Michal, Yannick Favre, Jacek Świerblewski, Miroslav Pech, Dusan Mandat, Petr Janeček, Petr Hamal, Vlastimil Jílek, T. Tavernier, Petr Schovánek, Premysl Dedic, Bastien Lacave, Ernest Glowacki, Michal Miron
article en

Abstract

The Single-Mirror Small-Size Telescope (SST-1M) is an Imaging Atmospheric Cherenkov Telescope designed for detecting very high-energy gamma rays. With a compact design achieved through the adoption of silicon-photomultiplier pixels and a lightweight structure, SST-1M offers a large field of view of about 9° and features a mirror system of 4 m diameter with an optical PSF (at 80% of photon inclusion) of 0.08° on axis and 0.21° at 4° off-axis, and a fully digitizing readout almost deadtime free up to few kHz. The SST-1M achieved a high-performance and cost-effective solution for implementing an array of small-sized telescopes. The stereoscopic system of two SST-1Ms is temporarily installed at the Ondřejov Observatory in the Czech Republic. From an altitude of only about 510 m and in harsh meteorological conditions, the system is detecting galactic sources and flares of AGNs. The accurate calibration of the detector and the simulation benchmark are ongoing. The results of its performance are shown. A future final location is being considered and a future performance outlook is discussed.

Openalex Percentile: Top 81%
Planetary Science and Exploration
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