PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/24-20:27:30
G10     299.0          51.9               20.0 +/-    1.13      24.7 +/-    1.13  0.080 / 0.140
G14     210.6          14.4               23.6 +/-    3.68      59.5 +/-    3.68  0.070 / 0.130
G15     45.8           26.2               18.5 +/-    1.26      35.2 +/-    1.26  0.030 / 0.060
G18     4.0            65.6               19.4 +/-    0.87      21.1 +/-    0.87  0.030 / 0.040
G20     72.4           17.6               17.1 +/-    0.64      39.9 +/-    0.64  0.090 / 0.090
G21     105.6          70.3               27.3 +/-    0.83      28.8 +/-    0.83  0.080 / 0.080
G24     97.2           27.2               21.7 +/-    0.93      40.4 +/-    0.93  0.070 / 0.210
G27     297.0          35.7               20.2 +/-    1.03      31.6 +/-    1.03  0.080 / 0.290
G32     212.1          31.1               21.9 +/-    1.56      37.4 +/-    1.56  0.060 / 0.100