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 Gravimeter, Magnetometer, and Echosounder Sonar during Eltanin expedition ELT28 conducted in 1967 (Chief Scientist: Dr. Bruce A. Warren). These data files
This data set was acquired with a ship-based Gravimeter, Magnetometer, and Echosounder Sonar during Vema expedition V3008 conducted in 1973 (Chief Scientist: Dr. James Cochran). These data files are o