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Table 1

VLA observations.

Frequency On-source Number of Phase Bootstrapped Beam
Epoch/Configuration Project (GHz) time (min) antennas calibrator flux density (Jy) angular size

1994 Apr. 16 (1994.29)/A AR277 8.46 206 18 0403+260 0.739  ±  0.002 0.′′19 × 0.′′16;     –68°
1996 Dec. 24 (1996.98)/A AR277 8.46 631 14 0403+260 0.691  ±  0.002 0.′′25 × 0.′′24;      + 19°
2009 Aug. 13 (2009.62)/C AR694 8.46 414 26 0403+260 2.34  ±  0.02 3.′′07 × 2.′′93;     –15°

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