PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-16:57:40
G02     4.7            73.2               12.7 +/-    0.76      13.2 +/-    0.76  0.180 / 0.270
G05     164.9          39.1               15.5 +/-    0.94      22.9 +/-    0.94  0.150 / 0.320
G06     44.2           33.5               10.1 +/-    0.54      16.5 +/-    0.54  0.030 / 0.040
G12     286.0          78.0               10.8 +/-    0.97      11.0 +/-    0.97  0.030 / 0.040
G19     84.0           20.5               12.6 +/-    1.18      27.4 +/-    1.18  0.050 / 0.100
G24     223.5          17.3               15.1 +/-    2.22      35.4 +/-    2.22  0.050 / 0.080
G25     314.2          39.9               13.0 +/-    3.19      19.0 +/-    3.19  0.040 / 0.080
G29     294.1          17.0               10.1 +/-    1.95      23.9 +/-    1.95  0.060 / 0.070