Year: 2023
Type: article
Abstract: We present a novel approach to the determination of the pointing of Imaging Atmospheric Cherenkov Telescopes (IACTs) using the trajectories of the stars in their camera’s field of view. The method starts with the reconstruction of the star positions from the Cherenkov camera data, taking into account the point spread function of the telescope, to achieve a satisfying reconstruction accuracy of the pointing position. A simultaneous fit of all reconstructed star trajectories is then performed with the orthogonal distance regression (ODR) method. ODR allows us to correctly include the star position uncertainties and use the time as an independent variable. Having the time as an independent variable in the fit makes it better suitable for various star trajectories. This method can be applied to any IACT and requires neither specific hardware nor interface or special data-taking mode. In this paper, we use the Large-Sized Telescope (LST) data to validate it as a useful tool to improve the determination of the pointing direction during regular data taking. The simulation studies show that the accuracy and precision of the method are comparable with the design requirements on the pointing accuracy of the LST (≤14″). With the typical LST event acquisition rate of 10 kHz, the method can achieve up to 50 Hz pointing monitoring rate, compared to 𝒪(1) Hz achievable with standard techniques. The application of the method to the LST prototype (LST-1) commissioning data shows the stable pointing performance of the telescope.
Source: Astronomy and Astrophysics
Authors: K. Abe, S. Abe, A. Aguasca-Cabot, I. Agudo, N. Alvarez Crespo, L. A. Antonelli, C. Aramo, A. Arbet-Engels, A. Cornelia, M. Artero, K. Asano, P. Aubert, A. Baktash, A. Bamba, A. Baquero Larriva, L. Baroncelli, U. Barres de Almeida, J. A. Barrio, I. Batkovic, J. Baxter, J. Becerra González, E. Bernardini, M. I. Bernardos, J. Bernete Medrano, A. Berti, P. Bhattacharjee, N. Biederbeck, C. Bigongiari, E. Bissaldi, O. Blanch, G. Bonnoli, P. Bordas, A. Bulgarelli, I. Burelli, L. Burmistrov, M. Buscemi, M. Cardillo, S. Caroff, A. Carosi, F. Cassol, D. Cauz, G. Ceribella, Y. Chai, K. Cheng, A. Chiavassa, M. Chikawa, L. Chytka, A. Cifuentes, J. L. Contreras, J. Cortina, H. Costantini, M. Dalchenko, A. De Angelis, M. de Bony de Lavergne, B. De Lotto, R. de Menezes, G. Deleglise, C. Delgado, J. Delgado Mengual, D. della Volpe, M. Dellaiera, A. Di Piano, F. Di Pierro, R. Di Tria, L. Di Venere, C. Díaz, R. M. Dominik, D. Dominis Prester, A. Donini, D. Dorner, M. Doro, D. Elsässer, G. Emery, J. Escudero, V. Fallah Ramazani, G. Ferrara, F. Ferrarotto, A. Fiasson, L. Freixas Coromina, S. Fröse, S. Fukami, Y. Fukazawa, E. Garcia, R. Garcia López, C. Gasbarra, D. Gasparrini, D. Geyer, J. Giesbrecht Paiva, N. Giglietto, F. Giordano, E. Giro, P. Gliwny, N. Godinovic, R. Grau, D. Green, J. Green, S. Gunji, P. Günther, J. Hackfeld, D. Hadasch, A. Hahn, K. Hashiyama, T. Hassan, K. Hayashi, L. Heckmann, M. Heller, J. Herrera Llorente, K. Hirotani, D. Hoffmann, D. Horns, J. Houles, M. Hrabovsky, D. Hrupec, D. Hui, M. Hütten, M. Iarlori, R. Imazawa, T. Inada, Y. Inome, K. Ioka, M. Iori, K. Ishio, M. Jacquemont, I. Jimenez Martinez, J. Jurysek, M. Kagaya, V. Karas, H. Katagiri, J. Kataoka, D. Kerszberg, Y. Kobayashi, K. Kohri, A. Kong, H. Kubo, J. Kushida, M. Lainez, G. Lamanna, A. Lamastra, T. Le Flour, M. Linhoff, F. Longo, R. López-Coto, A. López-Oramas, S. Loporchio, A. Lorini, P. L. Luque-Escamilla, P. Majumdar, M. Makariev, D. Mandat, M. Manganaro, G. Manicò, K. Mannheim, M. Mariotti, P. Marquez, G. Marsella, J. Martí, O. Martinez, G. Martínez, M. Martínez, A. Mas-Aguilar, G. Maurin, D. Mazin, E. Mestre Guillen, S. Micanovic, D. Miceli, T. Miener, J. M. Miranda, R. Mirzoyan, T. Mizuno, M. Molero Gonzalez, E. Molina, T. Montaruli, I. Monteiro, A. Moralejo, D. Morcuende, A. Morselli, H. Muraishi, K. Murase, S. Nagataki, T. Nakamori, L. Nickel, M. Nievas, K. Nishijima, K. Noda, D. Nosek, S. Nozaki, M. Ohishi, Y. Ohtani, T. Oka, A. Okumura, R. Orito, J. Otero-Santos, M. Palatiello, D. Paneque, F. R. Pantaleo, R. Paoletti, J. M. Paredes, M. Pech, M. Pecimotika, M. Peresano, F. Pfeiffle, E. Pietropaolo, G. Pirola, C. Plard, F. Podobnik, V. Poireau, M. Polo, E. Pons, E. Prandini, J. Prast, G. Principe, C. Priyadarshi, M. Prouza, R. Rando, W. Rhode, M. Ribó, V. Rizi, G. Rodriguez Fernandez, T. Saito, S. Sakurai, D. A. Sanchez, T. Šarić, Y. Sato, F. G. Saturni, B. Schleicher, F. Schmuckermaier, J. L. Schubert, F. Schussler, T. Schweizer, M. Sato, T. Siegert, R. Silvia, J. Sitarek, V. Sliusar, A. Spolon, J. Strišković, M. Strzys, Y. Suda, H. Tajima, H. Takahashi, M. Takahashi, J. Takata, R. Takeishi, P. H. T. Tam, S. J. Tanaka, D. Tateishi, P. Temnikov, Y. Terada, K. Terauchi, T. Terzic, M. Teshima, M. Tluczykont, F. Tokanai, D. F. Torres, P. Travnicek, S. Truzzi, A. Tutone, M. Vacula, P. Vallania, J. van Scherpenberg, M. Vázquez Acosta, I. Viale, A. Vigliano, C. F. Vigorito, V. Vitale, G. Voutsinas, I. Vovk, T. Vuillaume, R. Walter, Z. Wei, M. Will, T. Yamamoto, R. Yamazaki, T. Yoshida, T. Yoshikoshi, N. Zywucka
Institutions: Tokai University, Institute for Cosmic Ray Research, The University of Tokyo, Universitat de Barcelona, Instituto de Astrofísica de Andalucía, Universidad Complutense de Madrid, Astronomical Observatory of Rome, National Institute for Astrophysics, Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Max Planck Institute for Physics, University of Padua, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Institute for High Energy Physics, Laboratoire d’Annecy de Physique des Particules, Universität Hamburg, Osservatorio di Astrofisica e Scienza dello Spazio, Centro Brasileiro de Pesquisas Físicas, Universidad de La Laguna, Instituto de Astrofísica de Canarias, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, TU Dortmund University, Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Polytechnic University of Bari, Brera Astronomical Observatory, University of Udine, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, University of Geneva, Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Institute for Space Astrophysics and Planetology, Centre de physique des particules de Marseille, Istituto Nazionale di Fisica Nucleare, Sezione di Torino, Palacký University Olomouc, Port d'Informació Científica, Universitat Autònoma de Barcelona, University of Rijeka, University of Würzburg, Ruhr University Bochum, Sapienza University of Rome, International Laboratory for Astrophysics, Neutrino and Cosmology Experiments, Hiroshima University, Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata, University of Palermo, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA Paris-Saclay - Etablissement de Saclay, CEA Paris-Saclay, Institut de Recherche sur les Lois Fondamentales de l'Univers, University of Turin, Konan University
Language: English
Subfield: Instrumentation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,623
Funders: National Science Foundation, Centres de Recerca de Catalunya, European Commission, Deutsche Forschungsgemeinschaft, Ministry of Education, Culture, Sports, Science and Technology, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Ministerstvo Školství, Mládeže a Tělovýchovy, Bundesministerium für Bildung und Forschung, Generalitat de Catalunya, Ministero dell’Istruzione, dell’Università e della Ricerca, Max-Planck-Gesellschaft, Narodowe Centrum Nauki, Ministerio de Ciencia e Innovación, Istituto Nazionale di Astrofisica, Universidad de Jaén, Junta de Andalucía, Istituto Nazionale di Fisica Nucleare, Japan Society for the Promotion of Science, Instituto Nazionale di Fisica Nucleare, Staatssekretariat für Bildung, Forschung und Innovation, Agencia Estatal de Investigación, Institute for Cosmic Ray Research, University of Tokyo, NextGenerationEU
Awards: Study of heating and particle acceleration on collisionless shocks with ground experiment, theory, and high energy resolution X-ray observations, G1059663884, G114353912, G1162841413, G1293671712, G1301723534, G1323383031, G1381791653, G1485410139, G1565146803, G1644299668, G1650125035, Improving the gamma-ray detection sensitivity of the Cherenkov Telescope Array to discover dark matter and Galactic PeVatrons, G1826204064, G1918422760, G1935710221, G1953887145, G195395952, G1979261587, G2209488408, G2313451655, G267968979, G278595929, Study of explosion mechanism of supernovae with X-ray spectroscopic imaging, G3178956404, G3207356259, G3384621141, G3406277477, G3439265645, G3622461675, G3690828678, G3705259981, G3752857035, G3780874795, G3806684149, G3891102599, G393177772, G3978510197, G4104599821, G4317403835, G434337789, G4408153509, The Preparatory Phase for the Cherenkov Telescope Array
(CTA-PP), G463062595, G4719752971, G4760961572, 原子炉による悪性皮膚腫瘍の選択的治療, G4875165668, G490073602, G4973718836, INtelligent Fast Interconnected and Efficient Devices for Frontier Exploitation in Research and Industry, G5011157824, G5243814431, Cherenkov Telescope Array – participation of the Czech Republic, Cherenkov Telescope Array – participation of the Czech Republic, Revealing the high-energy dynamic universe and dark matter with the CTA large-aperture gamma-ray telescopes, G5641063287, G5688759631, G5702163051, G5727447510, G5845768719, G5881647929, G5894067328, G5924300520, Cherenkov Telescope Array: Infrastructure Development and Start of Implementation, G6032711784, G617271991, G617610489, CTA LST, G6368402562, G6377940362, G6390037881, G6393254597, G6465668149, G6468133638, G6513613686, European Science Cluster of Astronomy & Particle physics ESFRI research infrastructures, G673540925, G6761430300, G6775736318, G6791753710, G696452451, G702601109, G7123013300, Comprehensive Understanding of Galactic and Extragalactic Cosmic-ray Acceleration by Exploring Gamma-ray Observations beyond 100 TeV, G7383627748, G7425137858, G7545049216, G7840098671, G7880226156, G7954596376, G8007834609, G8079053745, G8284171658, G8293601190, G8373891351, Development of Czech participation in CTA, Development of a Method for Omitting Background Event Generation to Improve the Efficiency of Monte Carlo Simulations for CTA, G8627653757, G8639560392, G8684520763, G8706419950
OpenAlex ID: W4386950852