ESO DOI Service

• Colless, Matthew [Australian National University, Australia]
• Cirasuolo, Michele [European Southern Observatory (ESO)]
• Andersen, Anja C. [University of Copenhagen, Denmark]
• Bernstein, Rebecca [Giant Magellan Telescope, USA]
• Egner, Sebastian [European Southern Observatory (ESO)]
• Hill, Vanessa [Côte d’Azur Observatory, France]
• Monnier, John [University of Michigan, USA]
• Mérand, Antoine [European Southern Observatory (ESO)]

The 2023 Paranal Instrumentation Programme Lessons Learned exercise assessed the recent major projects delivered to Paranal. The goal was to identify good practices and improvements for the future by examining cost, schedule, and performance against targets. The review also considered ESO’s response to the previous exercise and lessons learned from interactions with partner institutes in Europe. This article summarises the overall findings and key recommendations for ESO.