PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-16:43:10
G02     41.9           48.2                7.7 +/-    0.89      10.0 +/-    0.89  0.040 / 0.040
G05     114.2          70.3                9.9 +/-    0.48      10.4 +/-    0.48  0.040 / 0.040
G12     186.2          50.5               10.8 +/-    0.78      13.5 +/-    0.78  0.030 / 0.050
G25     266.9          59.5                7.1 +/-    2.22       8.1 +/-    2.22  0.030 / 0.040
G29     316.2          37.8                7.6 +/-    1.41      11.4 +/-    1.41  0.030 / 0.030