PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-07:58:10
G08     273.2          19.1                6.2 +/-    1.46      13.9 +/-    1.46  0.050 / 0.070
G10     54.2           59.8                4.0 +/-    0.58       4.6 +/-    0.58  0.040 / 0.070
G14     255.0          59.7                6.5 +/-    1.18       7.4 +/-    1.18  0.100 / 0.330
G18     314.3          28.0                4.0 +/-    2.30       7.3 +/-    2.30  0.110 / 0.320
G20     98.3           25.2                6.0 +/-    0.61      11.8 +/-    0.61  0.130 / 0.280
G21     154.2          19.2                5.0 +/-    2.08      11.2 +/-    2.08  0.100 / 0.330
G24     41.0           12.3                1.4 +/-    2.20       3.8 +/-    2.20  0.030 / 0.030
G27     234.3          18.2                6.5 +/-    1.77      15.0 +/-    1.77  0.020 / 0.040
G31     177.4          28.5                5.4 +/-    1.14       9.8 +/-    1.14  0.110 / 0.200
G32     333.2          75.4                5.5 +/-    0.55       5.7 +/-    0.55  0.090 / 0.220