Q1322903: Difference between revisions

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Q1322903
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{{Page|Galactic Radiation and Background|Classes|first US orbital surveillance program|GRAB, GRAB-1}}
{{Page|Galactic Radiation and Background|Classes|first US orbital surveillance program|GRAB; GRAB-1}}

Latest revision as of 12:46, 2 September 2025




Galactic Radiation and Background (GRAB) was the first successful United States orbital surveillance program, comprising a series of five Naval Research Laboratory electronic surveillance and solar astronomy satellites, launched from 1960 to 1962. Though only two of the five satellites made it into orbit, they returned a wealth of information on Soviet air defense radar capabilities as well as useful astronomical observations of the Sun.