INTERFEROMETER PHASE CALIBRATION SOURCES .1. THE REGION 35-DEGREES LESS-THAN-OR-EQUAL-TO DELTA LESS-THAN-OR-EQUAL-TO 75-DEGREES

We present a catalogue of 800 compact radio sources in the declination range 35-degrees less-than-or-equal-to delta less-than-or-equal-to 75-degrees whose positions have been measured to an rms accuracy of approximately 12 milliarcsec with the VLA. They are primarily intended for use as phase reference sources for the Jodrell Bank MERLIN but they will also be suitable phase calibrators for the VLA and the VLBI networks.