Abstract
The Large Synoptic Survey Telescope is an f/1.23 modified Paul-Baker three-mirror design with a 3.5-degree field of view, a unique 8.4 m combined primary and tertiary, a 3.4 m secondary, a three-element refractive camera with six filter bands and a 63 cm detector – three billion pixels an image, fifteen terabytes a night. Holding that optical train in alignment while the telescope moves is the subject of this talk: the active alignment system's definition and alignment requirements, the design methodologies considered, and the Spatial Analyzer model built to review candidate measurement technologies and analyse their predicted performance.
Cite this paper
William J. Gressler, Scott Sandwith. LSST Project, National Optical Astronomy Observatory (NOAO); New River Kinematics. Presented at the Coordinate Metrology Systems Conference 2006, Orlando, Florida, July 17-21, 2006. Coordinate Metrology Society, reference CMS-2006-007.