PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-17:57:40
G02     24.7           61.6               10.2 +/-    0.81      11.5 +/-    0.81  0.040 / 0.040
G05     147.6          57.7               11.8 +/-    0.78      13.7 +/-    0.78  0.040 / 0.050
G06     52.0           17.3                7.7 +/-    1.02      18.2 +/-    1.02  0.040 / 0.050
G12     192.6          69.5               11.0 +/-    1.02      11.7 +/-    1.02  0.040 / 0.040
G19     94.9           15.7               10.9 +/-    1.10      26.7 +/-    1.10  0.080 / 0.130
G25     302.3          51.3               10.3 +/-    1.10      12.8 +/-    1.10  0.070 / 0.120
G29     303.3          23.3               10.0 +/-    1.97      20.3 +/-    1.97  0.050 / 0.060