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Number of programs by cycle
Number of programs by program type
Number of programs by exposure time
    
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Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA. Email: cxcweb@head.cfa.harvard.edu Smithsonian Institution, Copyright © 1998-2004. All rights reserved.  | 
Last modified: 03/14/06