PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/18-08:43:00
G07     21.1           68.6                3.7 +/-    0.48       4.0 +/-    0.48  0.040 / 0.040
G08     59.9           45.9                2.8 +/-    0.60       3.8 +/-    0.60  0.040 / 0.050
G09     175.0          43.6                6.3 +/-    1.38       8.6 +/-    1.38  0.030 / 0.040
G11     127.9          28.7                6.3 +/-    1.78      11.4 +/-    1.78  0.030 / 0.040
G18     112.4          10.9                0.5 +/-   16.87       1.3 +/-   16.87  0.100 / 0.150
G23     160.7          19.2                4.5 +/-    1.49      10.1 +/-    1.49  0.080 / 0.180
G27     40.4           17.2                1.8 +/-    1.16       4.3 +/-    1.16  0.110 / 0.370
G28     259.6          45.5                3.7 +/-    0.98       4.9 +/-    0.98  0.090 / 0.340
G30     319.8          50.2                3.9 +/-    1.06       4.9 +/-    1.06  0.110 / 0.210