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  • richardmitnick 5:28 pm on August 12, 2014 Permalink | Reply
    Tags: , , , , LSST   

    From LSST E-News: “LSST’s Calypso telescope moved from Kitt Peak to Tucson” 

    LSST E-News

    LSST E-News

    Early in the morning on May 28th, 2014, LSST’s 1.2-meter Calypso telescope took the first step of a long voyage from Kitt Peak National Observatory to Chile’s Cerro Pachón mountain, where it will accompany LSST as an essential calibration instrument. Through the efforts of a skilled team and thorough preparation, the move was successful, and by late-afternoon on the same day, Calypso had been delivered to the NOAO loading bay in Tucson.

    calypso
    Calypso leaving Kitt Peak. Image credit: LSST / Gary Poczulp

    As part of LSST’s calibration work package, Calypso is slated for transport to Chile in 2017. Until then, it will reside at NOAO, where it is being upgraded with a new control system, new drives, and a recoated mirror.

    Once the only privately-owned telescope among the state-of-the-art suite of astronomical facilities on Kitt Peak, Calypso was generously donated to LSST in 2008 by its proprietor, astrophysicist and entrepreneur Dr. Edgar Smith.

    Smith named Calypso after the sharp-sighted Greek goddess who captured Odysseus for seven years – “about the time it took to build [the telescope],” he recalls in Timothy Ferris’s book Seeing in the Dark.

    Now, more than a decade after its initial installation, LSST engineers were faced with the colossal task of dismantling Calypso and removing it from its site before the onset of the summer monsoon season.

    Perched 35 feet off the ground on a 14,000-pound mount, Calypso’s uninstallation was a dedicated operation, requiring over one month of planning, a $25,000 investment in transportation costs, 6 NOAO staff members for truss and optics removal and 8 individuals involved in lifting the telescope from its mount, and a 175-ton crane to complete the job.

    Even so, “Calypso was built to be relocated,” says LSST Telescope and Site subsystem manager Bill Gressler.

    Gressler’s team crafted a custom-made stand in-house for test and transport of the telescope. All optics were carefully removed and placed in special containers to protect them from shock during transportation. The container carrying the mirror – insured at $2.5 million – was carried on a truck with air-ride suspension.

    But the biggest challenge was navigating a 5-axle crane down the narrow road to the Calypso site, a meticulous ¼-mile journey that took 30 minutes.

    Refurbished Calypso “will be a cool robotic machine with a slick, jazzy instrument,” promises Gressler.

    Once installed on Cerro Pachón, Calypso will be used for atmospheric monitoring, measuring water vapor and overall assisting with post-processing of astronomical data produced by LSST. Adjacent to the main telescope on a mound casually known as “Calibration Hill,” Calypso will withstand the same environmental conditions as its much larger companion, surviving 120 mile-per-hour winds while functioning autonomously to provide precise calibration data.

    In the meantime, Calypso’s vacant site at Kitt Peak is up for sale – great views!

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  • richardmitnick 4:37 pm on August 12, 2014 Permalink | Reply
    Tags: , , , LSST,   

    From SLAC Lab: “Construction of Large Synoptic Survey Telescope to Begin” 


    SLAC Lab

    August 4, 2014

    LSST Will Capture Unprecedented View of Night Sky

    LSST Telescope

    On August 1, 2014, the National Science Foundation (NSF) announced an award to the Association of Universities for Research in Astronomy (AURA) to manage construction of the Large Synoptic Survey Telescope (LSST); with this announcement, construction of the LSST observatory can begin.

    When the LSST observatory starts surveying the entire visible southern sky from a Chilean mountaintop in October 2022, it will produce a unique view of the universe—the widest and fastest views of the night sky ever observed. LSST’s vast public archive of data will dramatically advance knowledge of the dark energy and dark matter that make up much of the universe, as well as galaxy formation and potentially hazardous asteroids. The LSST is expected to see “engineering first light” by 2020.

    LSST Camera
    SLAC is leading the construction of the 3,200-megapixel LSST camera, which will be the size of a small car and will weigh more than 3 tons. The digital camera will be the largest ever built for astronomy, allowing LSST to create an unprecedented public archive of data – about 6 million gigabytes per year, the equivalent of shooting roughly 800,000 images with a regular eight-megapixel digital camera every night. (SLAC National Accelerator Laboratory)

    LSST is an NSF and DOE partnership. NSF is responsible for the telescope and site, education and outreach, and the data management system, and DOE is providing the camera and related instrumentation. The National Research Council’s Astronomy and Astrophysics decadal survey ranked the LSST as the top new ground-based priority for the field in its 2010 report “New Worlds, New Horizons.”

    See the full article here.

    SLAC Campus
    SLAC is a multi-program laboratory exploring frontier questions in photon science, astrophysics, particle physics and accelerator research. Located in Menlo Park, California, SLAC is operated by Stanford University for the DOE’s Office of Science.
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