NIR Catalogue¶
Data product name¶
ObjCatalog
Data product custodian¶
NIR
Data model tag¶
R-1.6.7
Name of the Schema file¶
euc-test-nir-ObjCatalog.xsd
Schema documentation tag¶
Documentation for data product element DpdNirObjCatalog:
NIR source catalogue extracted from the NIR Stacked Frame.
Data product elements¶
Header of type: sys:genericHeader
Data of type: nir:nirObjCatalog
Parameters of type: ppr:genericKeyValueParameters
Processing Element(s) creating/using the data product¶
It is created by the NIR_CatalogExtraction PE.
Processing function using the data product¶
This is an internal NIR data product, and it is used only by the NIR PF.
Detailed description of the data product¶
This Data Product describes the NIR source catalogue created from a NIR stacked frame. The XML file references to a FITS file containing the source catalogue in LDAC format. Currently a Kron elliptical aperture photometry is used to estimate fluxes in units of microJy and AB magnitudes. The list of current parameters included in the catalogue is reported below.
Parameter name |
Brief description |
Unit |
SExtractor parameter |
|---|---|---|---|
ID |
Unique source identifier |
NUMBER |
|
RA |
Source barycenter RA coordinate |
deg |
ALPHA_J2000 |
DEC |
Source barycenter DEC coordinate |
deg |
DELTA_J2000 |
RA_VAR |
Barycenter RA coordinate variance |
\textrm{deg}^2 |
ERRX2_WORLD |
DEC_VAR |
Barycenter DEC coordinate variance |
\textrm{deg}^2 |
ERRY2_WORLD |
FLUX |
Source flux (Kron) |
\mu\textrm{Jy} |
FLUX_AUTO |
FLUX_ERR |
Source flux error (Kron) |
\mu\textrm{Jy} |
FLUXERR_AUTO |
MAG |
Source AB magnitude |
MAG_AUTO |
|
MAG_ERR |
Source AB magnitude |
MAGERR_AUTO |
|
KRON_RAD |
Kron Radius for photometry |
deg |
KRON_RADIUS |
A |
Source A shape parameter |
deg |
A_WORLD |
B |
Source B shape parameter |
deg |
B_WORLD |
THETA |
Source THETA shape parameter |
deg |
THETA_WORLD |
A_VAR |
Source A shape parameter variance |
\textrm{deg}^2 |
ERRA_WORLD |
B_VAR |
Source B shape parameter variance |
\textrm{deg}^2 |
ERRB_WORLD |
THETA_VAR |
Source THETA shape parameter variance |
\textrm{deg}^2 |
ERRTHETA_WORLD |
ELLIPT |
Source ELLIPTICITY shape parameter |
ELLIPTICITY |
|
CL_STAR |
Source star class parameter |
CLASS_STAR |
|
BACK |
Background source extraction value |
\mu\textrm{Jy} |
BACKGROUND |
THRESH |
Detection threshold above background |
THRESHOLD |