Orbiting Solar Observatory

A Delta rocket launching OSO 8 on 21 June 1975, at Cape Canaveral, Florida

The Orbiting Solar Observatory (abbreviated OSO) Program was the name of a series of eight American science satellites primarily intended to study the Sun, though they also included important non-solar experiments. Eight were launched successfully by NASA between 1962 and 1975 using Delta rockets. Their primary mission was to observe an 11-year sun spot cycle in UV and X-ray spectra. The initial seven (OSO 1–7) were built by Ball Aerospace, then known as Ball Brothers Research Corporation (BBRC), in Boulder Colorado. OSO 8 was built by Hughes Space and Communications Company, in Culver City, California.

单词	Advanced Orbiting Solar Observatory
释义	Advanced Orbiting Solar Observatory 英语百科 Orbiting Solar Observatory The Orbiting Solar Observatory (abbreviated OSO) Program was the name of a series of eight American science satellites primarily intended to study the Sun, though they also included important non-solar experiments. Eight were launched successfully by NASA between 1962 and 1975 using Delta rockets. Their primary mission was to observe an 11-year sun spot cycle in UV and X-ray spectra. The initial seven (OSO 1–7) were built by Ball Aerospace, then known as Ball Brothers Research Corporation (BBRC), in Boulder Colorado. OSO 8 was built by Hughes Space and Communications Company, in Culver City, California.
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Advanced Orbiting Solar Observatory

Orbiting Solar Observatory