| Stores the information about set of unique Sector regions |
| A Sector is defined as a distinct intersection of tiles and TilingGeometries, characterized by a unique combination of intersecting tiles and a list of tilingVersions. The sampling rate for any targets is unambgously defined by the number of tiles involved (nTiles) and the combination of targetVersion. |
| name | type | length | unit | ucd | description |
| regionID | bigint | 8 | ID_CATALOG | unique, sequential ID | |
| nTiles | int | 4 | NUMBER | number of overlapping tiles | |
| tiles | varchar | 256 | ID_VERSION | list of tiles in Sector | |
| targetVersion | varchar | 64 | the version of target selection ran over the sector -/K ID_VERSION | ||
| area | real | 4 | deg^2 | EXTENSION_AREA | area of this overlap region |