PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-07:27:50
G08     270.2          18.3                5.5 +/-    1.88      12.6 +/-    1.88  0.050 / 0.040
G10     59.3           58.8                5.0 +/-    1.06       5.7 +/-    1.06  0.050 / 0.050
G14     260.0          61.8                5.0 +/-    0.96       5.6 +/-    0.96  0.090 / 0.190
G18     313.1          30.3                4.4 +/-    1.02       7.6 +/-    1.02  0.210 / 0.270
G20     98.7           28.1                5.2 +/-    1.91       9.6 +/-    1.91  0.260 / 0.190
G21     154.7          16.8                4.0 +/-    2.04       9.5 +/-    2.04  0.150 / 0.230
G24     39.9           10.2                2.3 +/-    2.64       6.5 +/-    2.64  0.110 / 0.170
G27     232.3          16.4                6.3 +/-    1.68      15.1 +/-    1.68  0.140 / 0.180
G31     176.8          31.3                6.7 +/-    1.69      11.5 +/-    1.69  0.090 / 0.330
G32     342.9          74.2                4.7 +/-    0.32       4.9 +/-    0.32  0.110 / 0.340