PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-11:43:00
G03     236.9          68.1                6.4 +/-    0.47       6.9 +/-    0.47  0.090 / 0.220
G09     303.6          18.7                4.5 +/-    1.08      10.2 +/-    1.08  0.090 / 0.240
G14     98.5           17.8                3.9 +/-    1.29       9.1 +/-    1.29  0.060 / 0.050
G16     122.4          59.4                7.7 +/-    0.32       8.7 +/-    0.32  0.050 / 0.050
G22     191.3          53.4                7.0 +/-    0.42       8.5 +/-    0.42  0.040 / 0.040
G23     322.0          51.9                5.2 +/-    1.32       6.4 +/-    1.32  0.040 / 0.040
G26     66.7           50.0                5.3 +/-    0.69       6.7 +/-    0.69  0.050 / 0.050
G31     52.9           17.5                3.6 +/-    3.98       8.5 +/-    3.98  0.040 / 0.060