describes each bundle of matching objects from different runs

One distinguished object (the first one observed) is the head of a match bundle. Each match object points to its MatchHead and all objects with the same MatchHead form a bundle. The MatchHead describes the bundle, its center point (average RA, DEC), the variance of RA,DEC, and the counts of hits and misses in the bundle.

Index TypeKey or Field List
primary keyobjID
foreign keyPhotoObjAll(objID)