TERAPIX T0003 release : Deep+Wide data products description

Release reference identification : T0003 - February 2006

CFHTLS T0003 target lists:

 Deep fields: D1, D2, D3 and D4
 Wide fields: W1, W2 and W3

Positions of Deep and Wide fields in the sky.

T0003 Wide W*(n,m) finding charts: CFHTLS W1 ; CFHTLS W2 ; CFHTLS W3.

Quick overview of Wide pointings: W1(n,m) , W2(n,m) and W3(n,m) field.

Image selection criteria:
 Data obtained between: June 1st, 2003 and sept. 12, 2005.
 QRunID list : starting from 03AQ04 , ending to 05BQ03
 Terapix Class : A or B
 Exp. time: > 60 sec.
 Seeing : < 1.1" , except for u* (<1.4")
 Airmass: < 1.5
 Skyprobe value: <2.0 Mag. (security limit)

Data summary

 Magnitudes: AB Megacam instrumental system
 Mag. zero points : The zero points of all images are set to 30 AB magnitudes. The images have an effective exposure time of one second.
 Label: symbol "-" in the main table T0003 stands for information/data not available for that release.

Quick summary of most important Wide and Deep data

Full T0003 Summary Table of Wide and Deep data

T0003 Catalogues : SExtractor parameters

T0003 Photometric redshift Photo-z catalogues

SDSS/CFHTLS-Wide: comparison

 SDSS/CFHTLS (i.e. CFHT-Megacam) transformations resulting from the SNLS group (Regnault et al. ):

. g_CFHTLS - g_SDSS = -0.156(0.002) * (g-r)_SDSS

. r_CFHTLS - r_SDSS = -0.000(0.003) * (g-r)_SDSS

. i_CFHTLS - i_SDSS = -0.094(0.005) * (r-i)_SDSS

. z_CFHTLS - z_SDSS = +0.050(0.005) * (i-z)_SDSS

Documentation

release quick start guide

T0003 quick description

T0003 explanatory table

T0002/T0003 explanatory document (pdf).

MegaPrime/Megacam technical information from CFHT

Access to data: CADC archive

The Deep+Wide T0003 release at CADC

Overview of CFHTLS Data Products.

Reminder: please read the data access policy as defined by the CFHT Board of Directors.