May 26 1983
From The Space Library
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(New page: NASA launched ESA's X-ray observatory, Exosat, from Vandenberg Air Force Base at 3:18 p.m. GMT on a Delta. Designed to study cosmic X-ray sources from 0.04 to 80 Kev, the craft car...)
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NASA launched ESA's X-ray observatory, Exosat, from Vandenberg Air Force Base at 3:18 p.m. GMT on a Delta. Designed to study cosmic X-ray sources from 0.04 to 80 Kev, the craft carried four instruments: two imaging telescopes, a large-area proportional counter array, and a gas-scintillation spectrometer. It reached a planned highly elliptical orbit with 192,000-kilometer apogee, 340-kilometer perigee, and 72.5° inclination. ESA's operations control center (ESOC) took over shortly after liftoff. (NASA MOR M-492-304-83-01 [prelaunch] May 20/83; ESA Infos 18, 20)
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