PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/22-13:57:50
G03     218.6          65.8                7.0 +/-    1.40       7.6 +/-    1.40  0.040 / 0.040
G07     250.7          14.0                6.2 +/-    2.17      15.9 +/-    2.17  0.040 / 0.050
G09     304.2          18.8                6.8 +/-    1.10      15.4 +/-    1.10  0.110 / 0.220
G14     101.5          12.3                9.1 +/-    3.48      24.2 +/-    3.48  0.100 / 0.230
G16     129.3          59.5               10.6 +/-    0.38      12.1 +/-    0.38  0.040 / 0.070
G22     188.7          49.6                9.2 +/-    2.32      11.7 +/-    2.32  0.040 / 0.080
G23     321.3          51.2                7.7 +/-    0.87       9.6 +/-    0.87  0.120 / 0.440
G26     68.7           52.3                8.0 +/-    0.47       9.9 +/-    0.47  0.120 / 0.390
G31     53.4           18.2                6.7 +/-    1.00      15.4 +/-    1.00  0.040 / 0.050