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Table A.1.

Journal of radio observations of the quiescent source associated with FRB 20201124A.

Telescope Date Frequency Bandwidth Time on source Flux density FWHM
(dd/mm/yyyy) (GHz) (GHz) (min) (μJy) (″)
uGMRT 24/07/2021 0.19 0.125 45 < 3600 21.6×10.4
uGMRT 21/07/2021 0.38 0.24 98 1700±200 7.0×4.9
VLA-D 09/04/2021 3 2 28 340±30 18.0×16.1
9 2 33 150±10 7.4×6.7
VLA-D 11/05/2021 3 2 38 335±18 31.7×16.9
5 2 11 259±10 20.2×11.4
7 2 11 165±11 18.5×8.2
9 2 22 159±7 10.4×6.8
11 2 22 126±10 8.4×5.4
VLA-C 22/06/2021 1.5 1 14 706±76 12.8×12.1
9 2 10 142±12 2.6×2.6
11 2 10 104±14 2.3×2.1
22 8 26 78±8 1.1×1.0

e-MERLIN 11/07/2021 5 0.5 500 < 85 0.085×0.045
EVN 12/05/2021 5 0.1-0.5 245 < 54 0.0035×0.0017

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