PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/16-02:57:50
G01     101.0          28.4                5.8 +/-    1.09      10.5 +/-    1.09  0.050 / 0.050
G07     115.1          53.6                5.5 +/-    0.44       6.6 +/-    0.44  0.050 / 0.050
G08     41.8           16.2                2.9 +/-    1.75       7.0 +/-    1.75  0.190 / 0.130
G11     83.0           42.8                5.0 +/-    0.62       7.0 +/-    0.62  0.130 / 0.190
G13     305.4          31.1                4.0 +/-    1.76       6.8 +/-    1.76  0.040 / 0.050
G17     208.7          43.7                6.6 +/-    0.56       9.1 +/-    0.56  0.030 / 0.050
G19     210.8          19.1                4.5 +/-    2.43      10.1 +/-    2.43  0.030 / 0.050
G28     331.4          61.8                3.6 +/-    0.44       4.0 +/-    0.44  0.020 / 0.030
G30     71.1           78.1                4.8 +/-    1.17       4.9 +/-    1.17  0.070 / 0.100