TABLE  Sector2Tile

Match tiles to sectors, wedges adn sectorlets, and vice versa.

This table is designed to be queried in either direction - one can get all the tiles associated with a sector, or one can find all the sectors to which a tile belongs.

regionIDbigint8 ID_CATALOGID of the sector
typevarchar16  type of the sector
tilesmallint2 ID_CATALOGtile number
isMaskint4  flag that shows sign of tile (1 is negative)