PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/17-00:13:10
G10     301.0          53.0                8.0 +/-    0.86       9.8 +/-    0.86  0.070 / 0.090
G14     211.0          12.8                7.2 +/-   21.24      19.0 +/-   21.24  0.070 / 0.090
G15     46.2           29.3                6.2 +/-    0.81      11.0 +/-    0.81  0.030 / 0.040
G20     297.5          48.5                7.5 +/-    0.94       9.7 +/-    0.94  0.030 / 0.040
G21     101.5          73.7                9.3 +/-    0.76       9.7 +/-    0.76  0.120 / 0.430
G24     93.2           27.1                9.6 +/-    1.04      17.9 +/-    1.04  0.080 / 0.450
G27     298.1          35.0                9.2 +/-    0.90      14.5 +/-    0.90  0.090 / 0.130
G32     211.2          36.1               11.6 +/-    1.15      18.0 +/-    1.15  0.090 / 0.140