Metrology Lab

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Metrology Lab

John Shelton, an engineer in Green Bank, calibrates one of the 2009 actuators that gently adjust the 2004 surface panels of the Green Bank Telescope (GBT). He is in the old control room of the 300-foot telescope that was converted into a laboratory.

Credit: NRAO/AUI/NSF

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The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
	Founded in 1956, the NRAO provides state-of-the-art radio telescope facilities for use by the international scientific community. NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NRAO telescopes is available on a competitive basis to qualified scientists after evaluation of research proposals on the basis of scientific merit, the capability of the instruments to do the work, and the availability of the telescope during the requested time. NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media.
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