PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-09:13:00
G07     17.4           68.2                5.4 +/-    1.15       5.7 +/-    1.15  0.040 / 0.040
G08     61.6           46.7                4.5 +/-    0.87       6.0 +/-    0.87  0.050 / 0.040
G09     175.5          45.4                7.4 +/-    1.19       9.9 +/-    1.19  0.130 / 0.250
G11     129.0          27.9                6.0 +/-    2.02      10.9 +/-    2.02  0.150 / 0.280
G18     113.5          10.2               -0.4 +/-   20.12      -1.0 +/-   20.12  0.110 / 0.210
G23     160.5          20.3                4.7 +/-    1.94      10.3 +/-    1.94  0.120 / 0.220
G27     40.9           18.1                3.4 +/-    2.04       7.9 +/-    2.04  0.030 / 0.030
G28     258.2          44.7                6.7 +/-    2.91       9.0 +/-    2.91  0.030 / 0.030
G30     318.8          49.2                3.1 +/-    0.70       3.9 +/-    0.70  0.210 / 0.260