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[,rɔɪtl'grɪnɪdʒəb,zə:vətrɪ]
общая лексика
Гринвичская астрономическая обсерватория (ведущая астрономическая обсерватория. Основана в 1675 в пригороде Лондона Гринвиче [Greenwich]; в 1958 переведена в замок Херстмонсо [Herstmonceux Castle], графство Суссекс, а в 1990 в Кембридж [Cambridge])
HEAO-1 was an X-ray telescope launched in 1977. HEAO-1 surveyed the sky in the X-ray portion of the electromagnetic spectrum (0.2 keV – 10 MeV), providing nearly constant monitoring of X-ray sources near the ecliptic poles and more detailed studies of a number of objects by observations lasting 3–6 hours. It was the first of NASA's three High Energy Astronomy Observatories, HEAO 1, launched August 12, 1977 aboard an Atlas rocket with a Centaur upper stage, operated until 9 January 1979. During that time, it scanned the X-ray sky almost three times
HEAO included four X-ray and gamma-ray astronomy instruments, known as A1, A2, A3, and A4, respectively (before launch, HEAO 1 was known as HEAO A). The orbital inclination was about 22.7 degrees. HEAO 1 re-entered the Earth's atmosphere on 15 March 1979.