PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-02:57:50
G01     304.2          35.0                7.6 +/-    0.86      12.1 +/-    0.86  0.050 / 0.050
G10     108.7          38.9                9.6 +/-    0.80      14.3 +/-    0.80  0.050 / 0.050
G11     276.7          29.3                9.2 +/-    1.90      16.4 +/-    1.90  0.060 / 0.100
G14     6.8            64.7                8.0 +/-    0.64       8.7 +/-    0.64  0.060 / 0.090
G18     118.9          12.7                9.9 +/-    1.69      26.0 +/-    1.69  0.070 / 0.120
G22     310.4          27.8                7.9 +/-    2.43      14.5 +/-    2.43  0.070 / 0.140
G25     75.9           16.7                8.5 +/-    2.33      20.2 +/-    2.33  0.070 / 0.150
G31     167.9          66.8               10.5 +/-    0.43      11.3 +/-    0.43  0.120 / 0.150
G32     36.4           52.4                7.2 +/-    0.72       8.8 +/-    0.72  0.030 / 0.020