PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-02:27:50
G01     308.1          32.3                5.9 +/-    1.38       9.8 +/-    1.38  0.050 / 0.050
G10     104.2          42.0                7.2 +/-    0.75      10.1 +/-    0.75  0.050 / 0.050
G11     281.8          29.3                7.2 +/-    2.05      12.8 +/-    2.05  0.080 / 0.100
G14     357.7          67.0                7.2 +/-    0.62       7.7 +/-    0.62  0.060 / 0.090
G18     116.1          15.8                7.1 +/-    1.33      17.3 +/-    1.33  0.090 / 0.120
G22     308.9          24.2                6.7 +/-    1.00      13.4 +/-    1.00  0.080 / 0.130
G25     80.5           15.7                7.4 +/-    2.97      18.0 +/-    2.97  0.030 / 0.030
G31     171.7          61.7                9.6 +/-    0.40      10.7 +/-    0.40  0.030 / 0.030
G32     31.1           55.7                5.7 +/-    0.69       6.8 +/-    0.69  0.030 / 0.030