Fig. 4

ERM for the tile-pawprint linking tables. TileSet links the 7 multiframes (1 tile and its 6 constituent pawprints) in Multiframe. Each row in TileSet links to many associated rows in the TilePawPrints table, each of which refers to a different object. Each of these objects has between 1 and 7 measurements (detections) in the Detection table. The complication comes from TileSet containing a mix of tile and pawprint frames which cover different areas on the sky. The tile has a single extension and the pawprints have 16 extensions in MultiframeDetector.
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