PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/19-02:42:50
G01     319.1          17.8                5.4 +/-    1.53      12.6 +/-    1.53  0.180 / 0.150
G08     256.0          13.3                7.2 +/-    3.17      18.7 +/-    3.17  0.150 / 0.190
G10     79.7           53.1                7.8 +/-    0.41       9.4 +/-    0.41  0.040 / 0.040
G11     302.4          23.6                5.0 +/-    1.86      10.2 +/-    1.86  0.040 / 0.060
G14     293.5          70.0                6.0 +/-    0.47       6.4 +/-    0.47  0.090 / 0.180
G18     304.6          40.4                5.8 +/-    1.75       8.4 +/-    1.75  0.060 / 0.150
G20     83.2           61.0               12.0 +/-    1.01      13.5 +/-    1.01  0.180 / 0.350
G31     173.9          43.7               10.6 +/-    1.18      14.6 +/-    1.18  0.190 / 0.290
G32     11.5           66.4                5.0 +/-    0.64       5.4 +/-    0.64  0.090 / 0.080