PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-13:27:40
G03     191.9          23.8                7.1 +/-    1.65      14.3 +/-    1.65  0.090 / 0.170
G07     286.8          35.3                8.1 +/-    1.29      12.7 +/-    1.29  0.080 / 0.190
G08     145.1          24.8                9.5 +/-    3.38      18.6 +/-    3.38  0.100 / 0.110
G09     321.0          60.2                7.6 +/-    0.63       8.6 +/-    0.63  0.080 / 0.080
G16     43.5           39.9                6.1 +/-    0.38       9.0 +/-    0.38  0.040 / 0.040
G23     107.5          78.7                7.5 +/-    0.74       7.6 +/-    0.74  0.040 / 0.030
G26     43.2           12.3                5.0 +/-    1.36      13.1 +/-    1.36  0.100 / 0.580
G27     103.2          32.4                8.9 +/-    0.62      14.9 +/-    0.62  0.090 / 0.670
G30     271.4          10.8               -6.9 +/-   28.98     -19.0 +/-   28.98  0.040 / 0.080