PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-02:58:00
G01     232.8          23.2                6.8 +/-    1.90      13.9 +/-    1.90  0.260 / 0.190
G03     304.6          60.3                1.2 +/-    0.85       1.3 +/-    0.85  0.110 / 0.160
G14     78.5           29.8                3.5 +/-    1.72       6.1 +/-    1.72  0.040 / 0.030
G16     151.4          37.2                5.2 +/-    1.14       7.9 +/-    1.14  0.040 / 0.030
G18     207.3          12.4                5.0 +/-    3.16      13.3 +/-    3.16  0.080 / 0.140
G22     249.4          75.0                4.5 +/-    0.75       4.7 +/-    0.75  0.090 / 0.130
G23     300.3          30.4                4.6 +/-    1.17       7.9 +/-    1.17  0.070 / 0.140
G26     111.7          51.3                4.6 +/-    0.98       5.7 +/-    0.98  0.090 / 0.140
G31     42.6           39.7                1.8 +/-    1.18       2.7 +/-    1.18  0.080 / 0.090
G32     93.0           10.5                4.4 +/-    1.70      12.2 +/-    1.70  0.070 / 0.090