LAT LON foF2 Station 54.6 13.4 6.7 JULIUSRUH 67.8 20.4 6.4 KIRUNA 48.7 -3.4 7.0 LANNION 64.6 18.8 6.6 LYCKSELE 66.5 66.5 6.2 SALEKHARD 51.5 -0.6 7.8 SLOUGH 42.7 23.4 7.4 SOFIA 40.8 0.5 8.0 TORTOSA 59.8 17.6 6.7 UPPSALA 52.1 21.1 6.9 WARSZAWA