PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-17:43:10
G02     28.5           59.5               17.2 +/-    0.87      19.6 +/-    0.87  0.030 / 0.040
G05     153.5          56.5               20.1 +/-    0.77      23.6 +/-    0.77  0.030 / 0.040
G06     51.8           19.5               14.1 +/-    1.50      31.5 +/-    1.50  0.040 / 0.060
G12     206.2          71.7               16.6 +/-    0.77      17.4 +/-    0.77  0.030 / 0.060
G19     98.1           10.4               16.9 +/-    1.48      46.8 +/-    1.48  0.030 / 0.050
G20     197.8          23.1               19.8 +/-    1.21      40.4 +/-    1.21  0.030 / 0.050
G25     299.1          53.9               16.7 +/-    1.16      20.1 +/-    1.16  0.030 / 0.040
G29     306.5          28.4               13.9 +/-    1.79      25.1 +/-    1.79  0.030 / 0.050