PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-05:27:40
G10     249.7          25.7                7.0 +/-    1.53      13.5 +/-    1.53  0.100 / 0.320
G13     54.7           30.7                6.1 +/-    1.98      10.5 +/-    1.98  0.080 / 0.330
G15     88.0           57.4                7.0 +/-    1.40       8.1 +/-    1.40  0.050 / 0.050
G16     296.1          15.6                1.9 +/-    2.51       4.7 +/-    2.51  0.050 / 0.040
G20     308.9          70.6                5.6 +/-    0.67       5.9 +/-    0.67  0.050 / 0.050
G21     332.1          59.3                4.4 +/-    0.85       5.0 +/-    0.85  0.050 / 0.030
G26     267.5          16.1                5.6 +/-    2.95      13.7 +/-    2.95  0.090 / 0.130
G29     164.8          51.6                6.8 +/-    0.56       8.4 +/-    0.56  0.090 / 0.150