SAI VO . ... SAI CAS . ... Web Services . Catalog Access Services . ... Astronomical Thesaurus . ... RVO . ... This site is about the Virtual Observatory project in the Sternberg Astronomical Institute, Moscow University ( SAI MSU ). We provide a public access to the growing set of astronomical services developed by the SAI RVO development team in accordance with the Virtual Observatory standards. ... At present SAI CAS provides ConeSearch, CrossMatch services and supports user uploaded data. ...