PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-02:12:40
G01     304.3          34.9                5.0 +/-    0.89       7.9 +/-    0.89  0.050 / 0.060
G10     108.7          38.9                5.8 +/-    0.72       8.6 +/-    0.72  0.050 / 0.050
G11     276.9          29.2                6.4 +/-    1.98      11.5 +/-    1.98  0.070 / 0.100
G14     6.6            64.8                4.0 +/-    0.62       4.4 +/-    0.62  0.050 / 0.100
G18     119.0          12.5                5.3 +/-    2.25      14.0 +/-    2.25  0.040 / 0.030
G22     310.4          27.5                5.3 +/-    2.22       9.7 +/-    2.22  0.040 / 0.040
G25     76.4           16.8                4.5 +/-    2.24      10.6 +/-    2.24  0.090 / 0.110
G31     169.1          66.4                6.8 +/-    0.37       7.4 +/-    0.37  0.070 / 0.130
G32     35.9           52.8                3.7 +/-    1.05       4.5 +/-    1.05  0.030 / 0.030