|records what objects in one run are re-observed in other runs.|
| When an object is missing in the second run we use the nearest object in the second run Misses are flag and colored as (green: well inside the overlap |
The match radius is 1 arcsecond (beyond that it is considered a miss.
The object also points to a canoncal 'match head' object of the cluster.
|Index Type||Key or Field List|
|primary key||objID1, objID2|