PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Gamma-ray Astronomy (GA)
The ASTRI Mini-Array calibration software system
T. Mineo*, A.A. Compagnino, G. Contino, S. Iovenitti, D. Mollica, O. Catalano, M. Capalbi, R.Z. Sanchez Castelan, C. Bigongiari, M. Cardillo, E. Fedorova, A. Giuliani, D. Impiombato, V. La Parola, G. Leto, S. Lombardi, L. Fabrizio, M.C. Maccarone, M. Mastropietro, C. Righi and G. Tosti
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Pre-published on: July 25, 2023
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Abstract
The ASTRI Mini-Array is an INAF project aimed to observe astronomical sources emitting at very high-energy in the TeV spectral band. It consists of an array of nine innovative Imaging Atmospheric Cherenkov Telescopes that are an evolution of the double-mirror ASTRI-Horn telescope operating since 2014 at the INAF "M.G. Fracastoro" observing station (Italy). The array is being installed at the Teide Astronomical Observatory, Instituto de Astrofisica de Canarias, Tenerife (Spain).
The ASTRI Mini-Array telescopes require several calibration procedures for all subsystems forming the telescopes and for the entire array. These procedures have the final aim to define all quantities necessary to achieve a correct end-to-end processing of the scientific data, as well as to monitor the health of the telescopes.
A dedicated software system is needed to perform all the required calibrations: the main inputs are different data acquired by the Cherenkov cameras during the scientific observation runs (the camera Variance channel and Cherenkov muon rings) and during the calibration runs both with the camera internal calibration system and with the Illuminator (an external device to uniformly illuminate the telescopes). The calibration Software can be organised into four major groups depending on the telescope components or calibration elements: Optics Calibration Software, Camera Calibration Software, Pointing Calibration Software, and Optical Throughput Software.
This work presents an overview of the ASTRI Mini-Array calibration software system and the plan to validate some of its parts using ASTRI-Horn data.
DOI: https://doi.org/10.22323/1.444.0733
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