PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-06:12:30
G03     239.0          66.7                6.4 +/-    0.61       6.9 +/-    0.61  0.040 / 0.050
G09     305.8          22.5                5.0 +/-    1.02      10.3 +/-    1.02  0.040 / 0.050
G14     102.4          11.4                4.8 +/-    2.29      13.0 +/-    2.29  0.050 / 0.040
G16     128.1          60.6                8.7 +/-    0.39       9.8 +/-    0.39  0.060 / 0.050
G22     193.8          53.6                6.8 +/-    0.57       8.2 +/-    0.57  0.050 / 0.040
G23     319.8          49.4                4.2 +/-    0.98       5.4 +/-    0.98  0.050 / 0.040
G26     69.1           52.9                6.4 +/-    0.43       7.8 +/-    0.43  0.320 / 0.220
G31     52.7           19.6                3.6 +/-    3.14       8.1 +/-    3.14  0.350 / 0.370