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Table 1

Typical ionospheric phase errors in degrees.

dTEC (TECU) I ord II ord (day/night) I ord II ord (day/night) I ord II ord (day/night)
30 MHz 30 MHz 60 MHz 60 MHz 150 MHz 150 MHz
0.5 (remote st., bad iono.) 8067 294/214 4033 73/50 1613 12/8
0.1 (remote st., good iono.) 1613 126/46 806 31/10 323 5/2
0.03 (across FoV) 404 97/16 242 24/4 96 4/<1
0.01 (core st.) 160 88/8 80 22/2 31 4/<1

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