PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-02:27:50
G08     273.1          20.8               11.1 +/-    2.57      23.9 +/-    2.57  0.080 / 0.180
G10     47.5           60.7                7.1 +/-    0.96       8.1 +/-    0.96  0.140 / 0.380
G14     251.5          60.2                9.0 +/-    0.59      10.2 +/-    0.59  0.110 / 0.130
G18     315.3          25.8                5.8 +/-    1.10      11.1 +/-    1.10  0.100 / 0.160
G20     49.8           66.0               24.8 +/-    1.63      26.9 +/-    1.63  0.030 / 0.020
G21     153.6          23.3               10.8 +/-    1.68      21.9 +/-    1.68  0.030 / 0.030
G24     42.1           13.8                4.8 +/-    4.08      12.4 +/-    4.08  0.100 / 0.400
G27     237.6          20.8               11.5 +/-    2.55      24.7 +/-    2.55  0.210 / 0.340
G31     178.2          24.8               10.7 +/-    0.74      20.9 +/-    0.74  0.050 / 0.060
G32     318.3          76.6                8.2 +/-    0.59       8.4 +/-    0.59  0.050 / 0.050