PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/16-04:57:30
G01     319.7          16.2                5.4 +/-    2.68      13.1 +/-    2.68  0.210 / 0.270
G08     259.2          14.2               10.0 +/-    1.99      25.5 +/-    1.99  0.200 / 0.280
G10     76.7           54.2                5.5 +/-    0.39       6.6 +/-    0.39  0.090 / 0.190
G11     304.7          22.2                7.5 +/-    2.11      15.6 +/-    2.11  0.070 / 0.190
G14     285.1          68.5                7.9 +/-    0.73       8.4 +/-    0.73  0.030 / 0.030
G18     306.5          38.7                5.6 +/-    0.76       8.3 +/-    0.76  0.030 / 0.040
G20     97.3           43.9               10.7 +/-    0.79      14.6 +/-    0.79  0.120 / 0.350
G31     174.5          41.8                8.3 +/-    0.87      11.8 +/-    0.87  0.120 / 0.370
G32     8.1            67.7                6.6 +/-    0.70       7.1 +/-    0.70  0.090 / 0.090