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
Each dataset contains the following weight variables: TFWT (Full Sample Weight) and TFWT1-TFWT50 (Replicate Weights). For further details regarding the base weight and replicate weights in this data c
