rancomb_Alltilelocinfo

Summary:

For random associated with RANN given in the directory, the list of unique TARGETIDs with number of appearances as reachable according to fiber assigment and details on those appearances.

Naming Convention:

rancomb_{PROGRAM}_Alltilelocinfo.fits, where {PROGRAM} denotes the observing program, either dark or bright.

Regex:

rancomb_[a-z]{4,6}_Alltilelocinfo.fits

File Type:

FITS, 100 MB

Contents

Number	EXTNAME	Type	Contents
HDU0		IMAGE	Empty
HDU1	TILELOC	BINTABLE	Catalog data

FITS Header Units

HDU0

This HDU has no non-standard required keywords.

Empty HDU.

HDU1

EXTNAME = TILELOC

Table for randoms with RANN, given by the directory with unique TARGETIDS (randoms) associated with tiles where it has potentially being observed after fiber assigment

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	226	int	width of table in bytes
NAXIS2	465355	int	number of rows in table
DESIDR	edr	str	DESI Data Release

Required Data Table Columns

Name	Type	Units	Description
TARGETID	int64		Unique DESI target ID
NTILE	int64		Number of tiles target was available on
TILES	char[51]		TILEIDs of those tile, in string form separated by ‘-’
TILELOCIDS	char[159]		TILELOCIDs that the target was available for, separated by ‘-’