Schema for dp01_dc2_catalogs.position

This page is a reference to schema for select astrometry-related parameters for objects detected in the coadded images. Other schemas are listed under Catalogs.

Principal columns are in bold face type.

Schema for dp01_dc2_catalogs.position

Column Name

Unit

Data Type

Description

coord_ra

rad

double

RA-coordinate

coord_dec

rad

double

Decl-coordinate

extinction_bv

mag

double

Milky Way dust extinction, E(B-V)

objectId

long

Unique id.

parent

long

unique ID of parent source

deblend_nChild

int

Number of children this object has (defaults to 0)

detect_isPrimary

boolean

true if source has no children and is in the inner region of a coadd patch and is in the inner region of a coadd tract and is not “detected” in a pseudo-filter (see config.pseudoFilterList)

detect_isPatchInner

boolean

true if source is in the inner region of a coadd patch

detect_isTractInner

boolean

true if source is in the inner region of a coadd tract

merge_footprint_sky

boolean

Detection footprint overlapped with a detection from filter sky

merge_peak_sky

boolean

Peak detected in filter sky

merge_footprint_[f]

boolean

Detection footprint overlapped with a detection from filter f

merge_measurement_[f]

boolean

Flag field set if the measurements here are from the f filter

merge_peak_[f]

boolean

Peak detected in filter f