PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-09:12:40
G03     240.9          69.8                6.3 +/-    0.75       6.7 +/-    0.75  0.040 / 0.060
G09     301.5          15.4                3.0 +/-    2.18       7.4 +/-    2.18  0.040 / 0.050
G14     97.3           16.2                4.3 +/-    1.65      10.4 +/-    1.65  0.040 / 0.040
G16     131.6          56.3                8.7 +/-    0.83      10.2 +/-    0.83  0.040 / 0.050
G22     196.7          57.4                8.0 +/-    1.28       9.3 +/-    1.28  0.100 / 0.350
G23     320.0          50.2                4.9 +/-    1.12       6.2 +/-    1.12  0.110 / 0.330
G26     73.9           52.9                6.7 +/-    0.44       8.2 +/-    0.44  0.050 / 0.070
G31     51.5           20.3                1.5 +/-    1.32       3.3 +/-    1.32  0.050 / 0.060