PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-14:57:40
G03     191.2          23.3                9.4 +/-    2.71      19.0 +/-    2.71  0.100 / 0.190
G07     286.8          35.2                9.4 +/-    1.13      14.8 +/-    1.13  0.090 / 0.210
G08     146.2          24.4               13.3 +/-    1.74      26.3 +/-    1.74  0.100 / 0.440
G09     320.7          59.5                8.3 +/-    0.58       9.5 +/-    0.58  0.140 / 0.450
G16     43.5           40.2                7.1 +/-    0.75      10.2 +/-    0.75  0.040 / 0.070
G23     110.1          77.4                9.9 +/-    0.59      10.1 +/-    0.59  0.040 / 0.090
G26     43.1           12.4                6.4 +/-    0.65      17.0 +/-    0.65  0.040 / 0.040
G27     103.0          32.4               11.9 +/-    0.80      19.8 +/-    0.80  0.030 / 0.030
G30     271.6          11.3                6.3 +/-   13.35      17.0 +/-   13.35  0.110 / 0.200