A configuration flux calibration away from 3C 286 remains a major problem. Modified C configuration M. Rupen reported on the test observations made with the antennas from E12 and W12 moved to E3 and W3. For a long observation of the large object NGC 1058, approximately 15' size, he finds that the modified C configuration seems to do about as well as normal C configuration combined with a lessor amount of D configuration. Anomalies R. Perley reports problems with the spectral polarization mode PA, in recent B configuration observation of 3C 273. Large closure errors were appearing, and referenced pointing failed.
Explanations remain unclear.