Mr. Cesar Cardenas Profile

Cesar Cardenas

at European Southern Observatory

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Author

Publications (2)

Proceedings Article | 25 July 2024 Presentation + Paper

Integrating advanced analytics and AI for enhanced performance optimization and maintenance efficiency in the 4LGSF system at Paranal Observatory

José Luis Álvarez, Leonardo Blanco, Juan Beltrán, Álvaro Diaz, Guillermo Valdes, Cesar Cárdenas, Chester Rojas

Proceedings Volume 13098, 1309817 (2024) https://doi.org/10.1117/12.3019950

KEYWORDS: Telescopes, Laser systems engineering, Directed energy weapons, Observatories, Equipment, Adaptive optics, Relative humidity, Artificial intelligence, Laser guide stars, Data analysis

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The ESO Paranal Observatory is the site of the UT4 YEPUN telescope, which accommodates four TOPTICA-MPB Laser Guide Star Units (LGSUs) within its Adaptive Optics Facility (AOF). Additionally, three similar laser systems are scheduled for installation, with each telescope housing one laser unit, resulting in a total of seven lasers at Paranal. Preparations are underway at the Extremely Large Telescope (ELT) to integrate six more lasers. Recently we have introduced innovative strategies to guarantee the effectiveness and cost-efficiency of operations and technical maintenance. Pivotal initiatives include enhancing real-time monitoring of systems and subsystems. This approach enables a comprehensive evaluation of system usage, leading to optimized strategies and a 20% increase in the lifespan of critical components. Furthermore, the implementation of automated monitoring for critical system parameters has effectively decreased the necessity for visual inspections, thereby optimizing staffing allocation. The meticulous monitoring of environmental parameters within the telescope, coupled with the development of AI tools, facilitates the timely detection of deviations from technical specifications, triggering warnings and alarms. The AI tools also exhibit the potential to predict dangerous variations in the environment that affect system performance, enabling proactive measures to reduce troubleshooting time and ensuring data-driven interventions. The development of tools for comprehensive data analysis, covering health checks and operational logs of laser units, has resulted in a remarkable 25% reduction in staffing allocation for this activity. This streamlined process expedites fault analysis and facilitates the swift identification of the root cause of critical issues. Through the implementation of these strategic initiatives, we are not only enhancing the performance and longevity of the 4LGSF but also securing its sustained contribution to the scientific community. These efforts underscore our commitment to advancing technological capabilities and operational efficiency in astronomical research.

Proceedings Article | 18 July 2024 Poster + Paper

Infrastructure upgrade of Antu, Kueyen, and Melipal for the implementation of laser guide stars for the GRAVITY+ project

Michael Tucker Booth, Malte Scherbarth, Frédéric Gonté, Jose Antonio Abad, Bernardo Aguilera, Patricio Alarcon, Iván Alvarez, Luis Alvial, Eduardo Atton, Alexis Beltran, Israel Barraza, Pablo Barriga, Helen Bedigan, Christopher Binimelis, Oscar Briones, Rodrigo Candia, Luis Caniguante, Robin Capocci, Cesar Cardenas, Danissa Cardenas, Abdón Chala, Reinaldo Contreras, Ralf Conzelmann, Alain Delboulbé, Francoise Delplancke, Juan Diaz, Alejandro Doberti, Max Engelhardt, Jorge Fernandez, Eloy Fuenteseca, Fernando Garcia, Christian Garrido, Paul Garrido, Iván Guidolin, Pablo Gutierrez, Ronald Guzman, Wolfgang Hackenberg, Yerko Juica, Jean-Paul Kirchbauer, Demostenes Kirkmann, Peter Krempl, Juan Lorenzo, Alfredo Mella, Jhorvis Meza, Felipe Miranda, Sebastian Nunes, Sylvain Oberti, Francisco Olivares, Mario Opazo, Miguel Riquelme, Jordán Rivera, Miguel Robles, Fernando Salgado, Sylvain Rochat, Edson Rojas, Nicolas Schuler, Izzy Tambay, Richard Tamblay, Esteban Unmanzor, Herman Vega, Francisco Villanueva, Ricardo Whilem, Julien Woillez, Juan Zúñiga, Luis Zúñiga

Proceedings Volume 13096, 130969A (2024) https://doi.org/10.1117/12.3020005

KEYWORDS: Safety, Telescopes, Laser guide stars, Mirrors, Equipment, Large telescopes, Astronomical interferometers, Observatories

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