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Table 3.

Calibrators and the pointed positions in our observations.

Name RA Dec ΔαRFC ΔδRFC
J0539–0514 05 h 39 m 59 s . 937192 Mathematical equation: $ 05^\mathrm{h}39^\mathrm{m}59^\mathrm{s}.\,937192 $ 05 ° 14 41 . 30174 Mathematical equation: $ -05^{\circ }14^{\prime }41^{\prime \prime }.\,30174 $ –0.54 1.01
J0529–0519 05 h 29 m 53 s . 533450 Mathematical equation: $ 05^\mathrm{h}29^\mathrm{m}53^\mathrm{s}.\,533450 $ 05 ° 19 41 . 61678 Mathematical equation: $ -05^{\circ }19^{\prime }41^{\prime \prime }.\,61678 $ 0.81 –0.58
J0541–0541 05 h 41 m 38 s . 083371 Mathematical equation: $ 05^\mathrm{h}41^\mathrm{m}38^\mathrm{s}.\,083371 $ 05 ° 41 49 . 42843 Mathematical equation: $ -05^{\circ }41^{\prime }49^{\prime \prime }.\,42843 $ 0.04 –0.19
J0532–0307 05 h 32 m 07 s . 519261 Mathematical equation: $ 05^\mathrm{h}32^\mathrm{m}07^\mathrm{s}.\,519261 $ 03 ° 07 07 . 03799 Mathematical equation: $ -03^{\circ }07^{\prime }07^{\prime \prime }.\,03799 $ 0.97 0.93
J0558–0055 05 h 58 m 44 s . 391460 Mathematical equation: $ 05^\mathrm{h}58^\mathrm{m}44^\mathrm{s}.\,391460 $ 00 ° 55 06 . 92375 Mathematical equation: $ -00^{\circ }55^{\prime }06^{\prime \prime }.\,92375 $ 1.92 –4.78
J0600–0005 06 h 00 m 03 s . 503368 Mathematical equation: $ 06^\mathrm{h}00^\mathrm{m}03^\mathrm{s}.\,503368 $ 00 ° 05 59 . 03477 Mathematical equation: $ -00^{\circ }05^{\prime }59^{\prime \prime }.\,03477 $ 0.33 0.46
J0552+0313 05 h 52 m 50 s . 101499 Mathematical equation: $ 05^\mathrm{h}52^\mathrm{m}50^\mathrm{s}.\,101499 $ + 03 ° 13 27 . 24311 Mathematical equation: $ +03^{\circ }13^{\prime }27^{\prime \prime }.\,24311 $ –0.76 1.10
J0542–0913 05 h 42 m 55 s . 877408 Mathematical equation: $ 05^\mathrm{h}42^\mathrm{m}55^\mathrm{s}.\,877408 $ 09 ° 13 31 . 00660 Mathematical equation: $ -09^{\circ }13^{\prime }31^{\prime \prime }.\,00660 $ 1.04 0.69

Notes. Columns are (left to right): The calibrator name, the celestial position, the position shift (in mas) between the correlated position and the RFC 2025B position.

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