PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/02-02:27:20
G02     40.9           48.6                8.8 +/-    0.48      11.2 +/-    0.48  0.040 / 0.090
G05     118.0          67.3               10.6 +/-    0.96      11.3 +/-    0.96  0.020 / 0.050
G06     58.2           10.1                7.5 +/-    1.32      20.8 +/-    1.32  0.020 / 0.040
G12     192.5          59.5               11.4 +/-    1.71      13.0 +/-    1.71  0.020 / 0.050
G25     285.3          56.6               10.2 +/-    0.69      11.9 +/-    0.69  0.040 / 0.060
G29     312.2          33.1                8.1 +/-    1.12      13.3 +/-    1.12  0.040 / 0.060