CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observation
This data set was acquired with a ship-based Navigation system during Vema expedition V2604 conducted in 1968 (Chief Scientist: Dr. Manik Talwani). These data files are of Text File (ASCII) format and
