LAT LON foF2 Station 54.6 13.4 6.8 JULIUSRUH 67.8 20.4 6.2 KIRUNA 48.7 -3.4 7.0 LANNION 64.6 18.8 6.3 LYCKSELE 66.5 66.5 4.5 SALEKHARD 51.5 -0.6 7.7 SLOUGH 42.7 23.4 7.8 SOFIA 59.8 17.6 6.6 UPPSALA 52.1 21.1 6.9 WARSZAWA