ICRF-Ext.1

This dataset provides the equatorial coordinates of extragalactic radio sources observed at J2000.0 using Very Long Baseline Interferometry (VLBI). Number of objects: 667 AccuracyThe uncertainties in the coordinates are provided for each object and are given in the following ranges: Right Ascension [s]0.000017 - 0.053679 Declination ["]0.00026 - 0.52054