PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/17-02:58:00
G01     318.0          20.3                6.0 +/-    4.64      13.0 +/-    4.64  0.160 / 0.280
G08     253.5          11.7                8.1 +/-    6.78      21.7 +/-    6.78  0.150 / 0.290
G10     84.3           51.3                7.1 +/-    0.76       8.9 +/-    0.76  0.040 / 0.100
G11     299.6          24.9                7.6 +/-    1.17      14.9 +/-    1.17  0.040 / 0.090
G14     302.9          70.6                6.7 +/-    0.72       7.1 +/-    0.72  0.040 / 0.060
G18     301.6          42.5                6.5 +/-    1.18       9.1 +/-    1.18  0.040 / 0.060
G20     90.0           58.1               10.7 +/-    2.12      12.4 +/-    2.12  0.180 / 0.430
G22     302.0          11.8                6.5 +/-    2.39      17.5 +/-    2.39  0.190 / 0.440
G31     173.0          47.1                8.7 +/-    1.44      11.3 +/-    1.44  0.090 / 0.220
G32     16.6           64.1                4.6 +/-    0.61       5.1 +/-    0.61  0.090 / 0.220