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Table 1.

AAVS1 zenith-sensitivity measurements for the X and Y linear polarisations from solar observations carried out on 2018 April 26.

Frequency rmsdifference image
SEFDmeasured
SKA SEFDrequirement
X Y X Y per linear polarisation per station
(MHz) (Jy beam−1) (Jy beam−1) (kJy) (kJy) (kJy)
89.8 7.7 18.3 5.4 13 4.17
105.5 5.5 13.9 3.8 9.7 2.84
121.1 7.3 8.5 5.1 5.9 2.46
136.7 8.9 9.8 6.2 6.8 2.41
152.3 5.1 5.6 3.5 3.9 2.35
168.0 5.2 3.9 3.6 2.7 2.29
183.6 7.1 5.0 4.9 3.5 2.27
199.2 4.1 3.8 2.8 2.6 2.27
214.8 6.3 5.0 4.4 3.5 2.29
230.5 4.4 4.8 3.1 3.3 2.33
277.3 7.3 4.7 5.1 3.3 2.45
293.0 5.2 4.5 3.6 3.1 2.49
308.6 5.3 4.6 3.7 3.2 2.54

Notes. SKA-Low requirements have been taken from Caiazzo (2017) and converted into values for a single station. See Sect. 6 for further details.

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