PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/19-02:27:50
G08     262.1          16.5                9.0 +/-    1.01      21.6 +/-    1.01  0.150 / 0.410
G10     68.6           56.5                7.4 +/-    0.85       8.7 +/-    0.85  0.140 / 0.370
G11     308.1          20.2                5.4 +/-    1.09      11.9 +/-    1.09  0.200 / 0.350
G14     274.6          67.4                7.2 +/-    0.73       7.7 +/-    0.73  0.170 / 0.260
G18     310.0          35.2                5.5 +/-    1.36       8.8 +/-    1.36  0.040 / 0.040
G20     69.1           64.5               10.5 +/-    0.82      11.5 +/-    0.82  0.040 / 0.040
G21     155.6          12.6                7.8 +/-    3.32      20.5 +/-    3.32  0.160 / 0.280
G27     229.1          13.3                9.7 +/-    1.53      25.1 +/-    1.53  0.130 / 0.280
G31     175.7          36.3                8.8 +/-    1.13      13.6 +/-    1.13  0.160 / 0.240
G32     357.3          71.2                6.3 +/-    0.42       6.6 +/-    0.42  0.190 / 0.290