Volume 501 - 39th International Cosmic Ray Conference (ICRC2025) - Gamma-Ray Astrophysics
Next-day data processing for the LST-1 and MAGIC Cherenkov Telescopes
A. Dinesh*, M. Lainez, R. Alexander, D. Morcuende, A. Moralejo, J. Luis Contreras, A. Baquero, R.A. Cerviño, J. Lozano  on behalf of the CTAO-LST Project and the MAGIC Collaboration
*: corresponding author
Full text: pdf
Pre-published on: September 23, 2025
Published on: December 30, 2025
Abstract
The MAGIC and LST-1 telescopes, located at the Roque de los Muchachos Observatory on
La Palma, operate dedicated On-Site Analysis (OSA) pipelines that provide rapid, automated
processing of observational data. These systems produce high-level data products just a few hours
after observations are completed, enabling quick-look analyses, next-day data quality assessments,
and rapid-response science such as flare detection and Target of Opportunity follow-ups. OSA
pipelines have been in continuous operation since 2012 for MAGIC and since 2021 for LST-1,
automatically processing nightly data using the standard analysis chain. The experience gained
from both systems provides essential lessons for the development of Cherenkov Telescope Array
Observatory’s (CTAO’s) on-site analysis, demonstrating the practical and scientific benefits of fast
data processing in Cherenkov telescopes.
DOI: https://doi.org/10.22323/1.501.0630
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