PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/17-00:27:50
G08     262.7          16.7                9.0 +/-    1.08      21.6 +/-    1.08  0.160 / 0.560
G10     67.9           56.6                9.0 +/-    0.83      10.5 +/-    0.83  0.170 / 0.380
G11     308.5          19.9                6.1 +/-    1.10      13.4 +/-    1.10  0.040 / 0.050
G14     274.0          67.5                8.6 +/-    0.51       9.2 +/-    0.51  0.040 / 0.050
G18     309.9          35.6                7.9 +/-    1.88      12.4 +/-    1.88  0.120 / 0.420
G20     98.7           34.3                9.0 +/-    1.15      14.5 +/-    1.15  0.170 / 0.390
G21     155.3          12.0                9.4 +/-    1.47      25.1 +/-    1.47  0.140 / 0.270
G27     230.1          13.8                9.3 +/-    1.12      23.8 +/-    1.12  0.120 / 0.280
G31     177.1          34.6                8.5 +/-    1.94      13.6 +/-    1.94  0.190 / 0.190
G32     353.8          71.9                7.6 +/-    0.30       7.9 +/-    0.30  0.160 / 0.280