PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-05:12:50
G08     270.6          19.1                9.2 +/-    1.55      20.6 +/-    1.55  0.100 / 0.390
G10     55.9           59.4                5.7 +/-    1.08       6.5 +/-    1.08  0.120 / 0.330
G14     257.8          61.8                8.5 +/-    0.94       9.5 +/-    0.94  0.050 / 0.060
G18     313.9          29.1                7.4 +/-    1.70      13.2 +/-    1.70  0.050 / 0.070
G20     87.3           46.3               10.3 +/-    0.77      13.6 +/-    0.77  0.030 / 0.040
G21     154.5          18.8                8.6 +/-    1.47      19.4 +/-    1.47  0.030 / 0.040
G24     40.4           11.2                4.2 +/-    1.75      11.4 +/-    1.75  0.090 / 0.300
G27     233.9          17.7                9.4 +/-    2.27      21.8 +/-    2.27  0.100 / 0.360
G31     177.2          29.3               11.2 +/-    1.40      19.9 +/-    1.40  0.140 / 0.320
G32     336.4          75.1                7.6 +/-    0.62       7.8 +/-    0.62  0.140 / 0.310