PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/09-04:27:50
G08     285.7          22.6                8.9 +/-    0.98      18.4 +/-    0.98  0.110 / 0.140
G10     24.7           62.8                6.1 +/-    0.65       6.8 +/-    0.65  0.090 / 0.160
G14     237.0          50.4                8.7 +/-    0.97      10.9 +/-    0.97  0.060 / 0.090
G18     317.5          16.1                6.0 +/-    2.78      14.5 +/-    2.78  0.050 / 0.070
G20     64.7           56.4                7.0 +/-    0.41       8.3 +/-    0.41  0.080 / 0.170
G21     150.2          33.5                9.0 +/-    0.74      14.6 +/-    0.74  0.070 / 0.190
G24     49.0           20.9                4.3 +/-    1.37       9.3 +/-    1.37  0.050 / 0.110
G27     246.6          27.3                9.5 +/-    1.87      17.6 +/-    1.87  0.050 / 0.120
G31     180.7          14.8                7.1 +/-    2.18      17.8 +/-    2.18  0.030 / 0.030
G32     270.8          74.9                6.9 +/-    0.73       7.2 +/-    0.73  0.030 / 0.040