PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-04:28:00
G01     242.6          30.6                6.7 +/-    2.17      11.5 +/-    2.17  0.120 / 0.130
G03     313.7          48.9                4.8 +/-    0.81       6.2 +/-    0.81  0.060 / 0.160
G14     69.3           34.8                3.8 +/-    0.77       6.0 +/-    0.77  0.080 / 0.110
G16     161.8          24.0                6.7 +/-    0.92      13.4 +/-    0.92  0.100 / 0.140
G22     290.9          71.9                6.0 +/-    0.38       6.3 +/-    0.38  0.030 / 0.030
G23     291.7          22.7                6.7 +/-    2.49      13.9 +/-    2.49  0.030 / 0.030
G26     132.7          43.3                6.9 +/-    0.43       9.6 +/-    0.43  0.060 / 0.100
G31     39.5           53.0                5.3 +/-    0.66       6.4 +/-    0.66  0.050 / 0.110
G32     82.7           20.4                4.6 +/-    2.28      10.0 +/-    2.28  0.030 / 0.030