Monitoring the pointing of the prototype LST-1 using star reconstruction in the Cherenkov camera

0569553 - ASÚ 2023 RIV IT eng C - Conference Paper (international conference)
Abe, H. - Aguasca, A. - Agudo, I. - Karas, Vladimír - Mandát, Dušan - Pech, Miroslav - Prouza, Michael - Trávníček, Petr … Total 239 authors
Monitoring the pointing of the prototype LST-1 using star reconstruction in the Cherenkov camera.
Proceedings of Science. Vol. 395. Trieste: Sissa Medilab srl, 2022, č. článku 712. ISSN 1824-8039.
[International Cosmic Ray Conference /37./. Berlin (DE), 12.07.2021-23.07.2021]
R&D Projects: GA MŠMT(CZ) LM2018105
Institutional support: RVO:67985815 ; RVO:68378271
Keywords : astrophysics * instrumentation * methods
OECD category: Particles and field physics; Particles and field physics (FZU-D)
https://pos.sissa.it/395/712/pdf

In this work, we investigate a complementary approach that offers the possibility to monitor the pointing of the telescope during the acquisition of sky data. After properly cleaning the events from the Cherenkov showers, the reconstructed positions of the stars imaged in the camera field of view are compared to their nominal expected positions in catalogues. This provides a direct measurement of the telescope pointing, that can be used to cross-check the other methods and as a real-time monitoring of the optical properties of the telescope and of the pointing corrections applied by the bending models. Additionally, this method benefits from not relying on specific hardware or dedicated observations. In this contribution we will illustrate this analysis and show results based on simulations of LST-1.
Permanent Link: https://hdl.handle.net/11104/0340926