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Table A.1

VLA settings for experiment 19A-248 observed during spring and early summer 2019.

Array Band R.A. (J2000) (h m s) Dec. (J2000) (° ′ ″) VLSR (km s−1) Δ v (km s−1) Calibrators HPBW (″) 1 σ (mJy beam−1)
(1) (2) (3) (4) (5) (6) (7) (8) (9)
3C286
B K 22:56:17.9089 +62:01:49.527 −5.0 0.5 J2148+6107 0.265 1.0

Notes. Columns 1 and 2: Interferometer configuration and frequency band. Columns 3 and 4: Equatorial coordinates of target phase centre. Columns 5 and 6: Source radial velocity and maximum channel resolution. Column 7: Absolute flux (top) and phase (bottom) calibrators observed. Columns 8 and 9: Nominal beam size at a representative frequency of 24.14 GHz, assuming Briggs’s robust weighting (ℜ = 0.5) and rms noise required per channel unit.

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