PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-11:42:40
G03     221.0          62.9                5.6 +/-    1.96       6.2 +/-    1.96  0.050 / 0.070
G07     252.7          11.4                3.9 +/-    4.17      10.7 +/-    4.17  0.050 / 0.070
G09     307.7          24.3                4.9 +/-    2.05       9.7 +/-    2.05  0.100 / 0.400
G14     104.4          12.9                5.3 +/-    1.38      13.8 +/-    1.38  0.100 / 0.480
G16     105.7          62.9                6.1 +/-    0.77       6.8 +/-    0.77  0.040 / 0.050
G22     188.2          45.7                3.8 +/-    2.03       5.1 +/-    2.03  0.040 / 0.050
G23     328.3          57.7                3.5 +/-    0.77       4.0 +/-    0.77  0.140 / 0.470
G26     57.6           45.6                3.5 +/-    0.61       4.7 +/-    0.61  0.130 / 0.370
G31     56.8           12.2                4.0 +/-    0.96      10.7 +/-    0.96  0.040 / 0.050