PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-13:27:50
G03     191.9          23.8                8.4 +/-    2.34      17.0 +/-    2.34  0.120 / 0.140
G07     286.8          35.3                8.1 +/-    1.16      12.7 +/-    1.16  0.110 / 0.170
G08     145.1          24.8                9.4 +/-    1.01      18.4 +/-    1.01  0.090 / 0.100
G09     321.0          60.2                8.7 +/-    0.76       9.9 +/-    0.76  0.090 / 0.080
G16     43.5           39.9                6.9 +/-    0.83      10.1 +/-    0.83  0.110 / 0.320
G23     107.5          78.7                8.1 +/-    0.57       8.2 +/-    0.57  0.050 / 0.090
G26     43.2           12.3                6.5 +/-    2.28      17.2 +/-    2.28  0.060 / 0.070
G27     103.2          32.4                8.2 +/-    0.71      13.7 +/-    0.71  0.040 / 0.030
G30     271.4          10.8              -13.3 +/-   17.90     -36.5 +/-   17.90  0.030 / 0.030