Vis Stacked Catalogue Product¶
Metadata¶
Data product name |
DpdVisStackedFrameCatalog |
Data product custodian |
VIS |
Name of the Schema file |
|
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¶
Header |
object of type sys:genericHeader |
Data |
object of type vis:visStackedFrameCatalogData |
QualityFlags |
object of type dqc:sqfPlaceHolder |
Parameters |
object of type ppr:genericKeyValueParameters |
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.
Name of file:
EUC_VIS_SWL_CAT-000-000000-0000000__[YYYYMMDDThhmmss.s]Z.fits.gz
where the date is the production date.
The PSF of the stacked image is calculated and fitted to the data to provide spread model and other PSF measurement.
This calibrated catalogue contains 2 type of catalogue :
The LDAC_IMHEAD catalog is a 1-column catalogue which contains the header and some information (like SE parameters) of the original image.
The LDAC_OBJECTS catalogue is a 73-colum catalogue. Some of these columns are detailed below.
Name |
Units |
|---|---|
NUMBER |
n/a |
X_IMAGE |
pixel |
Y_IMAGE |
pixel |
XPSF_IMAGE |
pixel |
YPSF_IMAGE |
pixel |
X_WORLD |
deg |
Y_WORLD |
deg |
ERRA_WORLD |
deg |
ERRB_WORLD |
deg |
ERRTHETA_WORLD |
deg |
XPSF_WORLD |
deg |
YPSF_WORLD |
deg |
ERRAPSF_WORLD |
pixel |
ERRBPSF_WORLD |
pixel |
ERRTHETAPSF_WORLD |
deg |
A_WORLD |
deg |
B_WORLD |
deg |
THETA_WORLD |
deg |
ERRX2_WORLD |
deg**2 |
ERRY2_WORLD |
deg**2 |
ALPHA_J2000 |
deg |
DELTA_J2000 |
deg |
ERRTHETA_J2000 |
deg |
THETA_J2000 |
deg |
XWIN_WORLD |
deg |
YWIN_WORLD |
deg |
ALPHAPSF_J2000 |
deg |
DELTAPSF_J2000 |
deg |
ERRTHETAPSF_J2000 |
deg |
ALPHAWIN_J2000 |
deg |
DELTAWIN_J2000 |
deg |
ERRAWIN_WORLD |
deg |
ERRBWIN_WORLD |
deg |
ERRTHETAWIN_WORLD |
deg |
AWIN_WORLD |
deg |
BWIN_WORLD |
deg |
THETAWIN_WORLD |
deg |
ERRX2WIN_WORLD |
deg**2 |
ERRY2WIN_WORLD |
deg**2 |
MU_THRESHOLD |
mag * arcsec**(-2) |
MU_MAX |
mag * arcsec**(-2) |
MU_MAX_MODEL |
mag * arcsec**(-2) |
MU_EFF_MODEL |
mag * arcsec**(-2) |
MU_MEAN_MODEL |
mag * arcsec**(-2) |
MU_MAX_SPHEROID |
mag * arcsec**(-2) |
MU_EFF_SPHEROID |
mag * arcsec**(-2) |
MU_MEAN_SPHEROID |
mag * arcsec**(-2) |
MU_MAX_DISK |
mag * arcsec**(-2) |
MU_EFF_DISK |
mag * arcsec**(-2) |
MU_MEAN_DISK |
mag * arcsec**(-2) |
ELLIPTICITY |
n/a |
FLUX_AUTO |
count |
FLUXERR_AUTO |
count |
MAG_AUTO |
mag |
MAGERR_AUTO |
mag |
BACKGROUND |
count |
MAG_APER |
mag |
MAGERR_APER |
mag |
FLUX_APER |
count |
FLUXERR_APER |
count |
MAG_PSF |
mag |
MAGERR_PSF |
mag |
FLUX_RADIUS |
pixel |
ELONGATION |
n/a |
FWHM_IMAGE |
pixel |
SNR_WIN |
n/a |
SPREAD_MODEL |
n/a |
FLAGS |
n/a |
FLAGS_WIN |
n/a |
FLAGS_MODEL |
n/a |
ERRAWIN_IMAGE |
pixel |
ERRBWIN_IMAGE |
pixel |
ERRTHETAWIN_IMAGE |
deg |
VECTOR_MODEL |
n/a |
VECTOR_MODELERR |
n/a |
MATRIX_MODELERR |
n/a |
CHI2_MODEL |
n/a |
NITER_MODEL |
n/a |
FLUX_MODEL |
count |
FLUXERR_MODEL |
count |
MAG_MODEL |
mag |
MAGERR_MODEL |
mag |
XMODEL_IMAGE |
pixel |
YMODEL_IMAGE |
pixel |
XMODEL_WORLD |
deg |
YMODEL_WORLD |
deg |
ELLIP1MODEL_IMAGE |
n/a |
ELLIP2MODEL_IMAGE |
n/a |
ELLIP1ERRMODEL_IMAGE |
n/a |
ELLIP2ERRMODEL_IMAGE |
n/a |
ELLIPCORRMODEL_IMAGE |
n/a |
ELLIP1MODEL_WORLD |
n/a |
ELLIP2MODEL_WORLD |
n/a |
ELLIP1ERRMODEL_WORLD |
n/a |
ELLIP2ERRMODEL_WORLD |
n/a |
ELLIPCORRMODEL_WORLD |
n/a |
XWIN_IMAGE |
pixel |
YWIN_IMAGE |
pixel |
SNR |
n/a |
Header¶
SIMPLE |
This is a FITS file |
BITPIX |
|
NAXIS |
|
EXTEND |
This file may contain FITS extensions |
EQUINOX |
Mean equinox |
MJD-OBS |
Modified Julian date at start |
RADESYS |
Astrometric system |
CTYPE1 |
WCS projection type for this axis |
CUNIT1 |
Axis unit |
CRVAL1 |
World coordinate on this axis |
CRPIX1 |
Reference pixel on this axis |
CD1_1 |
Linear projection matrix |
CD1_2 |
Linear projection matrix |
CTYPE2 |
WCS projection type for this axis |
CUNIT2 |
Axis unit |
CRVAL2 |
World coordinate on this axis |
CRPIX2 |
Reference pixel on this axis |
CD2_1 |
Linear projection matrix |
CD2_2 |
Linear projection matrix |
EXPTIME |
Maximum equivalent exposure time (s) |
GAIN |
Maximum equivalent gain (e-/ADU) |
SATURATE |
Saturation Level (ADU) |
SOFTNAME |
The software that processed those data |
SOFTVERS |
Version of the software |
SOFTDATE |
Release date of the software |
SOFTAUTH |
Maintainer of the software |
SOFTINST |
Institute |
AUTHOR |
Who ran the software |
ORIGIN |
Where it was done |
DATE |
When it was started (GMT) |
COMBINET |
COMBINE_TYPE config parameter for SWarp |
RESAMPT1 |
RESAMPLING_TYPE config parameter |
CENTERT1 |
CENTER_TYPE config parameter |
PSCALET1 |
PIXELSCALE_TYPE config parameter |
RESAMPT2 |
RESAMPLING_TYPE config parameter |
CENTERT2 |
CENTER_TYPE config parameter |
PSCALET2 |
PIXELSCALE_TYPE config parameter |
EXTNAME |
|
OBS_ID |
|
DITHOBS |
|
EXPNUM |
|
MAGZEROP |
zero-point |
PHOT_ERR |
self calibration photometric error |
PHOTIRMS |
self calibration mag dispersion RMS |
APERCORR |
self calibration aperture correction MAG_50pix |
APCORRMS |
self calibration aperture correction RMS |