SkyServer: Table Descriptions

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name type text

MatchHead Photo When photometric objects from different runs are matched (see the Match table), they form a cluster named by the minimum objID in the cluster. MatchHead has summary information (mean position, number in cluster) about each of these clusters, keyed by the objID.

name	type	text
MatchHead	Photo	When photometric objects from different runs are matched (see the Match table), they form a cluster named by the minimum objID in the cluster. MatchHead has summary information (mean position, number in cluster) about each of these clusters, keyed by the objID.