PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/03-18:12:40
G02     19.5           65.7               15.6 +/-    0.54      16.9 +/-    0.54  0.070 / 0.070
G05     160.9          48.4               20.7 +/-    0.96      26.6 +/-    0.96  0.100 / 0.080
G06     48.4           24.8               13.5 +/-    2.17      26.4 +/-    2.17  0.030 / 0.020
G12     227.4          77.8               16.1 +/-    0.36      16.4 +/-    0.36  0.020 / 0.020
G19     92.3           14.6               15.4 +/-    2.35      38.7 +/-    2.35  0.310 / 0.790
G20     197.3          16.5               25.2 +/-    3.50      60.6 +/-    3.50  0.160 / 0.410
G24     216.8          10.7               21.5 +/-   10.30      59.2 +/-   10.30  0.030 / 0.050
G25     307.1          49.0               17.0 +/-    1.09      21.8 +/-    1.09  0.030 / 0.050
G29     301.1          23.0               16.5 +/-    1.61      33.7 +/-    1.61  0.140 / 0.220