The LSST monolithic M1M3 mirror blank approaches completion at the University of Arizona’s Steward Observatory Mirror Lab. The combined primary (M1) and tertiary (M3) surfaces are seen on the left in this image from July 2014 with the red polishing compound highlighting the active polishing zone of M3. In anticipation of completion, the vacuum lifting fixture (right, September 2014) is being assembled to supply suction to lift the mirror off the polishing cell and lower it into the mirror transport box once the polishing is complete. The fixture will then be disassembled and stored locally until it’s time to reinstall the M1M3 for final optical testing in the telescope cell prior to shipment to Chile.
Suzanne Jacoby (Editor-in-Chief)
Robert McKercher (Staff Writer)
Mark Newhouse (Design & Production: Web)
Emily Acosta (Design & Production: PDF/Print)
Additional contributors as noted
LSST E-News is a free email publication of the Large Synoptic Survey Telescope Project. It is for informational purposes only, and the information is subject to change without notice.
Copyright © 2015 LSST Project Office, Tucson, AZ
Financial support for LSST comes from the National Science Foundation (NSF) through Cooperative Agreement No. 1258333, the Department of Energy (DOE) Office of Science under Contract No. DE-AC02-76SF00515, and private funding raised by the LSST Corporation. The NSF-funded LSST Project Office for construction was established as an operating center under management of the Association of Universities for Research in Astronomy (AURA). The DOE-funded effort to build the LSST camera is managed by the SLAC National Accelerator Laboratory (SLAC).
The National Science Foundation (NSF) is an independent federal agency created by Congress in 1950 to promote the progress of science. NSF supports basic research and people to create knowledge that transforms the future.
Contact | We are Hiring | Business with LSST