Paper 13094-85
Paper 13094-85
Rubin M1M3 support system dynamic performance
21 June 2024 • 13:20 - 13:40 Japan Standard Time | Room G403/404, North - 4F
Abstract
The Vera C. Rubin Observatory is reaching the final stages of its construction and integration, advancing towards its 10-year Legacy Survey of Space and Time (LSST). One of the key milestones was the installation of the M1M3 Mirror Cell Assembly onto the Simonyi Survey Telescope’s (SST) Telescope Mount Assembly (TMA). The Cell Assembly actively supports the primary/tertiary mirror (M1M3), playing a crucial role in maintaining the glass safe and ensuring image quality. However, before the mirror glass installation, the Cell Assembly was installed on the TMA while supporting a steel surrogate M1M3 mirror. This surrogate closely mimics the glass mirror’s mass, center of gravity, and geometry. The M1M3 cell and surrogate were tested under conditions that simulate rapid field changes in the sky, which are essential for the observatory’s ambitious sky mapping schedule. These tests, extending from 1-100% of designed telescope slew velocities/accelerations, assessed the M1M3 active mirror support system, including the force balance system’s performance, the hardpoint behaviors, and the efficacy of the pneumatic figure control actuators. Preliminary results suggest the system meets operational requirements, ensuring safety and effectiveness at full speed.
Presenter
Bruno C. Quint
Vera C. Rubin Observatory (United States)
Dr. Bruno Quint is a Commissioning Scientist at the Vera Rubin Observatory engaged in designing and conducting integration tests. His in-depth knowledge comes from a Ph.D. in astronomy, specialized in astronomical instrumentation from the University of São Paulo. Throughout his master's, Ph.D., and initial post-doc, Bruno dedicated himself to the commissioning and characterizing an optical instrument for the SOAR Telescope. His experience is further enriched by his time at the GEMINI Observatory, where he played a significant role in software development for unit tests and data reduction tools. Presently at Rubin, Bruno is part of a collaborative effort developing tools to analyze data from the Simonyi Telescope’s primary/tertiary mirror tests.