PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-02:12:50
G01     229.9          20.6                7.3 +/-    1.78      15.7 +/-    1.78  0.040 / 0.050
G03     299.2          63.3                3.2 +/-    1.06       3.5 +/-    1.06  0.040 / 0.040
G14     82.0           27.4                3.2 +/-    1.82       6.0 +/-    1.82  0.080 / 0.170
G16     149.1          40.7                7.1 +/-    0.71      10.2 +/-    0.71  0.090 / 0.170
G22     235.1          73.8                5.1 +/-    0.54       5.3 +/-    0.54  0.080 / 0.200
G23     302.9          32.7                5.0 +/-    1.10       8.4 +/-    1.10  0.090 / 0.200
G26     106.1          52.9                6.1 +/-    0.39       7.5 +/-    0.39  0.060 / 0.130
G31     43.5           36.9                2.5 +/-    0.76       3.8 +/-    0.76  0.070 / 0.110