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“Piering” down on LSST Construction

“Piering” down on LSST Construction

Tuesday, January 12, 2016
Altitude of inspection drone = ~100 meters

A DJI Phantom 3 Pro Drone is being used on Cerro Pachón to monitor LSST construction progress from a birds-eye view. Multiple images will be used to generate a 3D model of the Summit Facility, suitable for inspection via virtual reality. In these initial images taken by Systems Engineer Jacques Sebag on January 8, 2016, preparation of the telescope pier is clearly visible.

From an altitude of 100 meters, infrastructure for the entire Summit Facility is clearly seen, including the construction of the second floor of the support building (on the right) where the telescope control room, computer room and offices will be located. From an altitude of 30 meters, closer to the actual height of the top of the dome, you can see the telescope pier emerging from the bedrock. The “hole in the donut” is the excavation for the pier foundation, and the recessed ring around it is the base for the foundation of the lower enclosure that will support the dome. The 16-meter diameter by 15-meter-high concrete pier will provide an extremely stiff base structure, to dampen vibration from rapid motion of the telescope in operation and resist damage when the earth moves rapidly in response to seismic events. The summit facility and dome are on schedule to be substantially completed in late 2017.

Altitude of inspection drone = ~30 meters

Altitude of inspection drone = ~30 meters

The height of the top of the dome above ground level is ~38 meters.

The height of the top of the dome above ground level is ~38 meters.

Detailed, cut-away view of the LSST Summit Facility shows how the pieces fit together.

Detailed, cut-away view of the LSST Summit Facility shows how the pieces fit together.

 

Image Credit: 
LSST

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). 


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