PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-11:42:50
G01     68.7           32.7                5.2 +/-    1.01       8.6 +/-    1.01  0.030 / 0.040
G07     138.4          28.8                7.5 +/-    1.95      13.4 +/-    1.95  0.040 / 0.030
G11     51.8           28.6                4.4 +/-    1.42       7.9 +/-    1.42  0.070 / 0.080
G13     271.8          37.5                5.7 +/-    2.71       8.7 +/-    2.71  0.070 / 0.080
G17     237.8          72.1                7.7 +/-    0.62       8.1 +/-    0.62  0.100 / 0.130
G18     46.7           16.5                3.5 +/-    2.34       8.4 +/-    2.34  0.090 / 0.120
G19     225.1          38.9                6.6 +/-    2.44       9.8 +/-    2.44  0.060 / 0.090
G28     21.1           59.2                6.9 +/-    1.35       7.9 +/-    1.35  0.060 / 0.110
G30     137.6          61.8                7.9 +/-    0.47       8.8 +/-    0.47  0.110 / 0.250