PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-05:27:50
G01     316.7          22.8                5.7 +/-    3.12      11.8 +/-    3.12  0.160 / 0.400
G08     252.4          10.1                8.0 +/-    4.44      22.4 +/-    4.44  0.190 / 0.320
G10     88.7           49.6                7.7 +/-    0.70       9.8 +/-    0.70  0.040 / 0.060
G11     297.3          25.5                8.4 +/-    2.91      16.2 +/-    2.91  0.040 / 0.050
G14     308.5          70.2                7.2 +/-    1.19       7.6 +/-    1.19  0.100 / 0.190
G18     298.5          44.1                7.5 +/-    1.11      10.2 +/-    1.11  0.090 / 0.200
G20     106.3          36.5               11.8 +/-    0.98      18.3 +/-    0.98  0.100 / 0.130
G22     304.0          15.7                3.0 +/-    2.43       7.4 +/-    2.43  0.130 / 0.170
G31     171.9          50.7                8.6 +/-    1.04      10.7 +/-    1.04  0.040 / 0.050
G32     21.1           61.7                6.1 +/-    0.37       6.8 +/-    0.37  0.030 / 0.040