Data model: boss_sectors

General description: Paired list of sectors and locations, useful for looking up all the sectors associated with a given locationid, or all the locationid values overlapping a sector. Use in conjunction with boss_sector2tile. However, note that these sector numbers will not correspond to the final ones for the survey, which will be complicated by the edges between chunks.

Naming convention: boss_sectors.par

Approximate size: 2 Mbytes.

File type: Yanny

Read by products: bosstile

Written by products: bosstile

Required column names:

• ISECTOR (int32): sector number from global idealized geometry (NOT going to be equal to the final sector number for the actual survey).
• NLOCATIONS (int32): number of locations associated with this sector
• ILOCATIONS[5] (int32): zero-indexed positions of each overlapping location in the boss_locations file. (-1 for filler values)
• LOCATIONID[5] (int32): id numbers of each location in the boss_locations file (-1 for filler values)
• AREA (float64): area in sq deg of the sector

Example file: boss_geometry.par

For IDL users, this file is given in a "FITS" mangle format, readable by the idlutils routine "read_fits_polygons", and in a "Yanny" mangle format, readable by "read_yanny_polygons".