PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-09:58:10
G01     119.0          18.0                5.3 +/-    0.64      12.3 +/-    0.64  0.020 / 0.030
G07     82.3           66.0                5.3 +/-    0.70       5.7 +/-    0.70  0.020 / 0.030
G08     44.3           29.7                1.7 +/-    0.94       3.0 +/-    0.94  0.030 / 0.040
G09     173.9          21.8                6.3 +/-    1.27      13.3 +/-    1.27  0.030 / 0.040
G11     104.9          40.1                5.9 +/-    0.79       8.6 +/-    0.79  0.120 / 0.280
G13     317.4          19.9                4.7 +/-    1.15      10.3 +/-    1.15  0.140 / 0.330
G17     201.1          26.1                6.8 +/-    2.48      13.0 +/-    2.48  0.100 / 0.350
G18     92.7           20.8                4.3 +/-    0.80       9.3 +/-    0.80  0.100 / 0.350
G28     291.7          56.9                6.6 +/-    0.78       7.7 +/-    0.78  0.080 / 0.210
G30     343.7          67.8                2.7 +/-    0.57       2.9 +/-    0.57  0.090 / 0.190