191 



U.S.A. 



ORBITING SOLAR OBSERVATORIES (OSO) 

 NASA 



"Big Science" Descriptor : Space: physics and astronomy 



Description of Facility/Instrument : Eight spacecraft out of nine were 

 successfully launched for continuous observation of the Sun. 

 These observations added to knowledge of the Sun In x-ray, ultra- 

 violet, and Infrared wavelengths, and studied celestial objects 

 as well. 



Date of Construction : 1962-1975 (launches) 



Construction Cost ; 1984 $$ : $171.1 million 



Present International Cooperation 



Nationality(s) of Ownership ; U.S. 

 Nationallty(s) of Operationa l Funding; U.S. 

 Nationallty(s) of Management Staff ; ^U.S. 

 Nationallty(s) of Researchers ; U.S. 



OSO-8 had French instrumentation for ultraviolet spectroscopy. 



Other Information; 



OSO - 1(S-16) 

 OSO - 2(B-2) 

 OSO - C 

 OSO - 3(E) 

 OSO - 4(D) 

 OSO - 5(F) 

 OSO - 6(G) 

 OSO - 7(H) 

 OSO - 8(1) 



Launched 



March 7, 1962 

 February 3, 1965 

 Failed to orbit 

 March 8, 1967 

 October 18, 1967 

 January 22, 1969 

 August 9, 1969 

 September 29, 1971 

 June 21, 1975 



