PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/16-00:27:50
G08     264.4          17.5                9.1 +/-    1.17      21.3 +/-    1.17  0.100 / 0.370
G10     64.6           57.4                8.9 +/-    0.77      10.3 +/-    0.77  0.100 / 0.270
G11     309.9          18.8                6.1 +/-    0.92      13.8 +/-    0.92  0.030 / 0.100
G14     269.5          66.5                7.7 +/-    0.86       8.3 +/-    0.86  0.030 / 0.050
G18     311.1          34.1                6.3 +/-    0.88      10.1 +/-    0.88  0.200 / 0.360
G20     97.0           35.5                9.4 +/-    0.96      14.8 +/-    0.96  0.230 / 0.330
G21     155.1          13.8               10.4 +/-    3.07      26.5 +/-    3.07  0.130 / 0.210
G27     231.5          15.0               11.3 +/-    1.96      28.0 +/-    1.96  0.080 / 0.170
G31     177.5          32.6               10.6 +/-    2.49      17.6 +/-    2.49  0.140 / 0.230
G32     348.6          73.0                7.7 +/-    0.57       8.0 +/-    0.57  0.140 / 0.200