PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/11-07:13:10
G07     28.8           69.1                5.9 +/-    0.71       6.2 +/-    0.71  0.040 / 0.040
G08     57.0           44.0                4.8 +/-    1.08       6.5 +/-    1.08  0.050 / 0.050
G09     174.5          40.6                9.0 +/-    0.61      13.0 +/-    0.61  0.030 / 0.040
G11     125.5          30.3                7.6 +/-    1.06      13.2 +/-    1.06  0.020 / 0.040
G18     109.9          12.2                5.0 +/-    2.84      13.3 +/-    2.84  0.110 / 0.270
G23     161.0          17.4                6.3 +/-    1.16      14.7 +/-    1.16  0.100 / 0.280
G27     39.7           15.6                3.4 +/-    0.66       8.3 +/-    0.66  0.110 / 0.260
G28     262.3          46.7                7.4 +/-    0.86       9.8 +/-    0.86  0.070 / 0.200
G30     321.8          51.9                5.3 +/-    1.14       6.5 +/-    1.14  0.090 / 0.380