PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-06:57:40
G01     220.1          10.9                5.5 +/-    2.02      15.0 +/-    2.02  0.030 / 0.040
G03     264.5          69.4                5.9 +/-    0.70       6.3 +/-    0.70  0.030 / 0.050
G09     300.3          15.7                4.3 +/-    2.84      10.4 +/-    2.84  0.170 / 0.440
G14     93.8           19.8                4.1 +/-    1.79       9.1 +/-    1.79  0.200 / 0.340
G16     132.3          54.4                5.9 +/-    0.51       7.0 +/-    0.51  0.060 / 0.080
G22     202.8          62.7                6.5 +/-    0.60       7.2 +/-    0.60  0.040 / 0.060
G23     313.9          43.7                4.3 +/-    1.05       6.0 +/-    1.05  0.110 / 0.240
G26     77.2           52.6                5.5 +/-    1.01       6.8 +/-    1.01  0.090 / 0.220
G31     49.6           22.7                2.3 +/-    2.12       4.7 +/-    2.12  0.040 / 0.050