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Published online by Cambridge University Press: 14 August 2015
Measurements by C. M. Wade and R. M. Hjellming with the three-element-interferometer at Green Bank were reduced simultaneously for instrumental parameters and positions of 59 radio sources. The minor axes of the confidence ellipses have typical values of about 0″.15 while the major axes vary with declination from 0″.15 to 1″.4.