TABLE sdssTileAll

Contains information about each individual tile on the sky.

Each 'tile' corresponds to an SDSS-I or -II spectroscopic observation. The tile covers a region of the 1.49 deg in radius, and corresponds to one or more observed plates. At the time the tile was created, all of the 'tiled target' categories (galaxies, quasars, and some very special categories of star) were assigned fibers; later other targets were assigned fibers on the plate.

name type length unit ucd description

tile smallint 2 ID_PLATE (unique) tile number

tileRun smallint 2 ID_VERSION run of the tiling software

raCen float 8 deg POS_EQ_RA right ascension of tile center

decCen float 8 deg POS_EQ_DEC declination of the tile center

htmID bigint 8 CODE_HTM htm tree info

cx float 8 POS_EQ_CART_X x projection of vector on unit sphere

cy float 8 POS_EQ_CART_Y y projection of vector on unit sphere

cz float 8 POS_EQ_CART_Z z projection of vector on unit sphere

untiled tinyint 1 CODE_MISC 1: this tile later "untiled," releasing targets to be assigned to another tile, 0: otherwise

nTargets int 4 NUMBER number of targets assigned to this tile

loadVersion int 4 ID_VERSION Load Version

name	type	length	unit	ucd	description
tile	smallint	2		ID_PLATE	(unique) tile number
tileRun	smallint	2		ID_VERSION	run of the tiling software
raCen	float	8	deg	POS_EQ_RA	right ascension of tile center
decCen	float	8	deg	POS_EQ_DEC	declination of the tile center
htmID	bigint	8		CODE_HTM	htm tree info
cx	float	8		POS_EQ_CART_X	x projection of vector on unit sphere
cy	float	8		POS_EQ_CART_Y	y projection of vector on unit sphere
cz	float	8		POS_EQ_CART_Z	z projection of vector on unit sphere
untiled	tinyint	1		CODE_MISC	1: this tile later "untiled," releasing targets to be assigned to another tile, 0: otherwise
nTargets	int	4		NUMBER	number of targets assigned to this tile
loadVersion	int	4		ID_VERSION	Load Version