This accession consists of two websites maintained by the Smithsonian Astrophysical Observatory (SAO) as they existed on October 28, 2016. SAO, with the Harvard College Observatory, jointly administers the Harvard-Smithsonian Center for Astrophysics (CfA).
The International CHASC Astro-Statistics Collaboration website is a listing of resources of specific interest to astronomers regarding statistics.
The 400d Cluster Survey website provides information about an X-ray survey for galaxy clusters using archival ROSAT observations as well as calibrations and projects using the survey. The website also includes catalog data which may be incomplete in this accession. It appears that the website was last updated in approximately 2012.
Materials are in electronic format.
Smithsonian Institution Archives, Accession 17-330, Smithsonian Astrophysical Observatory, Website Records
Smithsonian Institution Archives
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