PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/06-17:43:00
G03     189.6          21.5                9.9 +/-    2.00      21.0 +/-    2.00  0.340 / 0.320
G07     287.3          35.4               11.8 +/-    1.11      18.6 +/-    1.11  0.300 / 0.280
G08     148.0          23.9               11.5 +/-    1.37      23.0 +/-    1.37  0.080 / 0.130
G09     320.5          59.2               10.6 +/-    1.08      12.1 +/-    1.08  0.090 / 0.150
G16     43.4           40.5                8.5 +/-    0.77      12.3 +/-    0.77  0.040 / 0.080
G23     110.8          77.7               10.2 +/-    0.58      10.4 +/-    0.58  0.040 / 0.090
G26     43.2           12.3                8.9 +/-    1.41      23.7 +/-    1.41  0.030 / 0.030
G27     101.9          32.6               11.5 +/-    0.67      19.1 +/-    0.67  0.020 / 0.030
G30     272.5          12.8               13.5 +/-    3.69      35.3 +/-    3.69  0.130 / 0.230