LSST System Overview

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

The Large Synoptic Survey Telescope Corporation was formed to design, build, and operate the LSST. Currently 34 institutions have joined. The proposed observatory is funded as a private/federal partnership with federal support from the NSF and DOE. The LSST has a guiding principle of open-data and open-source for everyone in the US and Chile without any proprietary period. The total cost of the LSST Observatory in 2010 USD is approximately 465 million. Full science operations will begin six years after federal construction funding begins.
The LSST will be located on Cerro Pachón Ridge near Gemini-South and SOAR. The telescope will survey the entire available sky every few nights using six bands 350nm to 1100nm ugrizy, covering 20,000 square degrees deeply in all six filters 1000 times in ten years. The optical design has an effective collecting aperture of 6.5 meters and a field of view of 9.6 square degrees.
Currently, all three of the large mirrors are in construction using private funding. The site architecture and site preparation are in process. All Chilean environmental studies are approved and permits awarded. The 3.2 GigaPixel camera is the primary deliverable of the DOE under the leadership of SLAC. Prototype sensors have been delivered from two commercial suppliers. The Observatory will produce 18TB of data each night. Over the planned ten year survey the survey will produce 100PB of data and catalogs that will be processed and stored at NCSA. Transient events will be announced within 60 seconds world-wide; Static sky catalogs will be updated on various time scales; Data Releases with full provenance will occur once a year and include reprocessing of all prior data. Data Access Centers will be strategically located for serving the data to the scientific community and the general public.

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