Stacked Catalogue Product

$SetSchemaPath vis/euc-vis-StackedFrameCatalog.xsd

Data product name

$PrintDataProductName

Data product custodian

$PrintDataProductCustodian

Name of the Schema file

$PrintSchemaFilename

Last Edited for DPDD Version

1.1

Processing Element(s) creating/using the data product

VIS_science_xml_out

Processing function using the data product

NIR processing functions.

Proposed for inclusion in EAS/SAS

Yes

Data product elements

$PrintDataProductElements

Detailed description of the data product

The VIS processing function provides a catalogue delivered in FITS “LDAC” format. These catalogues are produced using SExtractor on the stacked frame.

The PSF of the stacked image is calculate and fitted to the data for provide spread model and other PSF measurement.

This calibrated catalogue contains 2 type of catalogue :

  • The LDAC_IMHEAD catalog is a 1-column catalogue witch containt the header and some information (like SE parameters) of the original image.

  • The LDAC_OBJECTS catalogue is a 73-colum catalogue. Some of these column are detailed below.

Parameter name

Brief description

Unit

NUMBER

Running object number

NA

X_WORLD

Barycenter position along world x axis

[deg]

Y_WORLD

Barycenter position along world y axis

[deg]

X_IMAGE

Maximum x-coordinate among detected pixels

[pixel]

Y_IMAGE

Maximum y-coordinate among detected pixels

[pixel]

ERRA_WORLD

World RMS position error along major axis

[deg]

ERRB_WORLD

World RMS position error along minor axis

[deg]

ERRTHETA_WORLD

Error ellipse pos. angle (CCW/world-x)

[deg]

A_WORLD

Profile RMS along major axis (world units)

[deg]

B_WORLD

Profile RMS along minor axis (world units)

[deg]

THETA_WORLD

Position angle (CCW/world-x)

[deg]

ERRX2_WORLD

Variance of position along X-WORLD (alpha)

[\(deg^{2}\)]

ERRY2_WORLD

Variance of position along Y-WORLD (delta)

[\(deg^{2}\)]

ALPHA_J2000

Right ascension of barycenter (J2000)

[deg]

DELTA_J2000

Declination of barycenter (J2000)

[deg]

ERRTHETA_J2000

J2000 error ellipse pos. angle (east of north)

[deg]

THETA_J2000

Position angle (east of north) (J2000)

[deg]

XWIN_WORLD

Windowed position along world x axis

[deg]

YWIN_WORLD

Windowed position along world y axis

[deg]

ERRAWIN_WORLD

World RMS windowed pos error along major axis

[deg]

ERRBWIN_WORLD

World RMS windowed pos error along minor axis

[deg]

ERRTHETAWIN_WORLD

Windowed error ellipse pos. angle (CCW/world-x)

[deg]

AWIN_WORLD

Windowed profile RMS along major axis (world units)

[deg]

BWIN_WORLD

Windowed profile RMS along minor axis (world units)

[deg]

THETAWIN_WORLD

Windowed position angle (CCW/world-x)

[deg]

ERRX2WIN_WORLD

Variance of windowed pos along X-WORLD (alpha)

[deg]

ERRY2WIN_WORLD

Variance of windowed pos along Y-WORLD (delta)

[deg]

FLUX_AUTO

Flux within a Kron-like elliptical aperture

[count]

FLUXERR_AUTO

RMS error for AUTO flux

[count]

MAG_AUTO

Kron-like elliptical aperture magnitude

[mag]

MAGERR_AUTO

RMS error for AUTO magnitude

[mag]

FLUX_RADIUS

Fraction-of-light radii

[pixel]

FLAGS

Extraction flags

NA

SPREAD_MODEL

Spread parameter from model-fitting

NA