Table 2: Offsets of the reference feature from the correlated position: $\rm\alpha (J2000) = 05^h 30^m 48$ $.\!\!^{\prime\prime}$033, $\rm\delta (J2000) = 33^{\circ } 47' 54$ $.\!\!^{\prime\prime}$6; Col. 1 reports the observing epoch; Cols. 2 and 3 respectively the RA and Dec apparent offsets, as derived from the phase-reference calibrated maps; Cols. 4 and 5 the corrections for the combined action of Galactic, Sun and earth motion; Cols. 6 and 7 the corrected (RA and Dec) offsets.
Epoch $\Delta \alpha_1$ $\Delta \delta_1$ $\Delta \alpha_2$ $\Delta \delta_2$ $\Delta \alpha_f$ $\Delta \delta_f$
  (mas) (mas) (mas) (mas) (mas) (mas)
16 Oct. 03 -83.1 (0.4) -244.7 (0.2) -1.2 1.0 -84.3 (0.4) -243.7 (0.2)
22 Nov. 03 -83.4 (0.1) -244.6 (0.1) -0.9 1.2 -84.3 (0.1) -243.4 (0.1)
1 Jan. 04 -83.7 (0.3) -245.3 (0.2) -0.6 1.4 -84.3 (0.3) -243.9 (0.2)
8 Feb. 04 -84.0 (0.3) -245.5 (0.2) -0.3 1.7 -84.3 (0.3) -243.8 (0.2)


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