PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/03-18:28:00
G02     27.4           60.3               16.3 +/-    0.66      18.4 +/-    0.66  0.060 / 0.050
G05     155.7          55.4               21.4 +/-    0.59      25.4 +/-    0.59  0.060 / 0.050
G06     51.7           19.5               13.7 +/-    1.38      30.6 +/-    1.38  0.020 / 0.030
G12     206.2          72.0               18.1 +/-    0.45      18.9 +/-    0.45  0.030 / 0.030
G19     97.7           10.6               16.8 +/-    1.36      46.2 +/-    1.36  0.030 / 0.040
G20     197.6          22.9               23.9 +/-    3.09      49.1 +/-    3.09  0.040 / 0.030
G25     299.2          54.0               17.6 +/-    2.23      21.2 +/-    2.23  0.240 / 0.390
G29     305.9          27.7               17.3 +/-    0.73      31.9 +/-    0.73  0.160 / 0.300