PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/12-02:58:10
G01     301.9          36.2                8.1 +/-    1.28      12.5 +/-    1.28  0.060 / 0.060
G10     111.0          37.2                8.1 +/-    0.78      12.4 +/-    0.78  0.050 / 0.060
G11     274.0          29.1                6.6 +/-    0.92      11.8 +/-    0.92  0.080 / 0.080
G14     11.1           63.4                6.4 +/-    0.56       7.1 +/-    0.56  0.070 / 0.090
G18     120.3          11.0                7.5 +/-    2.76      20.5 +/-    2.76  0.100 / 0.090
G22     311.2          29.6                5.9 +/-    1.18      10.4 +/-    1.18  0.070 / 0.090
G25     73.6           17.1                6.9 +/-    1.33      16.3 +/-    1.33  0.030 / 0.020
G31     165.4          69.3                8.0 +/-    0.37       8.5 +/-    0.37  0.030 / 0.020
G32     38.9           50.9                5.8 +/-    1.79       7.2 +/-    1.79  0.070 / 0.120