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Context of 'August 28, 1964: Nimbus Satellites Use PV Array'

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The US’s Vanguard I space satellite uses a small solar array, generating less than one watt, to power its radios. Later that same year, the Explorer III, Vanguard II, and Sputnik-3 satellites all use PV-powered systems (see 1956-1958) to power its systems. While commercial uses for solar energy in the United States (see 1955) is less than successful during this period, silicon solar cells become a mainstay of satellites and subsequent space exploration vehicles. In 1962, Bell Telephone Laboratories launches the first telecommunications satellite, Telstar. This satellite generates 14 watts of electricity via its PV cells. [US Department of Energy, 2002 pdf file; Smithsonian National Air and Space Museum, 2013]

Entity Tags: Bell Laboratories

Timeline Tags: US Solar Industry

August 28, 1964: Nimbus Satellites Use PV Array

NASA begins the Nimbus satellite program by launching the first Nimbus satellite, powered by a 470-watt PV array. The Nimbus satellites are primarily for research into more complex satellite systems, and for collecting atmospheric data. [US Department of Energy, 2002 pdf file; National Space Science Data Center, 12/3/2009]

Entity Tags: Nimbus Program

Timeline Tags: US Solar Industry

NASA launches its Orbiting Astronomical Observatory (OAO), powered by a 1-kilowatt PV array. The satellite platform provides astronomical data in the ultraviolet and X-ray wavelengths that is normally filtered out by Earth’s atmosphere. [US Department of Energy, 2002 pdf file]

Entity Tags: National Aeronautics and Space Administration, Orbiting Astronomical Observatory

Timeline Tags: US Solar Industry

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