PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/16-04:42:40
G03     251.2          69.2                4.1 +/-    1.24       4.3 +/-    1.24  0.130 / 0.240
G09     303.5          20.8                2.7 +/-    3.59       5.9 +/-    3.59  0.120 / 0.260
G14     97.1           16.9                4.0 +/-    3.16       9.6 +/-    3.16  0.040 / 0.040
G16     128.3          57.1                5.9 +/-    0.49       6.9 +/-    0.49  0.030 / 0.040
G22     199.0          58.9                5.3 +/-    0.67       6.1 +/-    0.67  0.050 / 0.070
G23     316.4          46.0                4.5 +/-    0.88       5.9 +/-    0.88  0.060 / 0.060
G26     72.6           52.2                4.0 +/-    0.84       4.9 +/-    0.84  0.040 / 0.040
G31     51.0           21.2                3.2 +/-    2.08       6.8 +/-    2.08  0.030 / 0.050