PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-09:12:50
G03     255.3          69.7                5.0 +/-    1.09       5.3 +/-    1.09  0.040 / 0.050
G09     301.1          16.1                2.8 +/-    2.75       6.8 +/-    2.75  0.040 / 0.050
G14     94.9           19.8                3.7 +/-    1.18       8.1 +/-    1.18  0.090 / 0.260
G16     130.2          55.8                8.0 +/-    0.58       9.5 +/-    0.58  0.080 / 0.170
G22     197.6          59.8                5.8 +/-    0.40       6.6 +/-    0.40  0.040 / 0.070
G23     316.5          46.5                2.7 +/-    1.05       3.6 +/-    1.05  0.030 / 0.050
G26     74.2           52.1                6.1 +/-    0.33       7.5 +/-    0.33  0.040 / 0.040
G31     50.5           21.3                2.0 +/-    0.64       4.2 +/-    0.64  0.030 / 0.050