PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-15:42:40
G03     219.1          65.2                8.8 +/-    0.98       9.6 +/-    0.98  0.080 / 0.410
G07     251.3          14.0                7.9 +/-    3.17      20.2 +/-    3.17  0.120 / 0.350
G09     305.0          19.9                5.6 +/-    0.81      12.3 +/-    0.81  0.040 / 0.040
G14     102.5          11.3               10.5 +/-    1.93      28.4 +/-    1.93  0.040 / 0.040
G16     130.1          60.1               10.0 +/-    0.37      11.3 +/-    0.37  0.100 / 0.180
G22     188.5          48.5                8.9 +/-    0.81      11.4 +/-    0.81  0.160 / 0.220
G23     321.5          51.4                7.7 +/-    0.74       9.5 +/-    0.74  0.160 / 0.350
G26     68.1           52.6                6.9 +/-    0.56       8.4 +/-    0.56  0.260 / 0.270
G31     53.7           18.2                6.7 +/-    2.26      15.3 +/-    2.26  0.040 / 0.060