Known Problems

Note about photometric calibration of the IDR. The IDR data are calibrated per observing run. This means that data taken in non photometric conditions will have calibration offsets. Data taken during photometric nights have been included in the PhotoObjBest table subject to the following constrains: r'-band zero point rms smaller than 0.05; r'-band magnitude zero point larger than 24.2; seeing conditions better than 2 arcsec in all bands; ellipticity better than 0.2 and all objects have been detected in the three bands. All data taken for the survey, including non-photometric data, are available in the PhotoObj table. The list of fields and positions included in the PhotoObjBest table is available in ASCII format here.