PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-00:12:40
G08     303.4          21.6               15.5 +/-    1.66      32.9 +/-    1.66  0.030 / 0.020
G10     340.5          61.1               13.6 +/-    0.51      15.3 +/-    0.51  0.020 / 0.020
G14     221.3          37.4               18.6 +/-    1.35      28.3 +/-    1.35  0.070 / 0.070
G18     46.5           57.3               16.3 +/-    0.90      18.9 +/-    0.90  0.060 / 0.060
G21     138.5          50.7               17.7 +/-    0.54      22.1 +/-    0.54  0.070 / 0.070
G24     69.5           30.1               15.0 +/-    1.08      26.2 +/-    1.08  0.090 / 0.080
G27     266.1          36.3               18.4 +/-    0.79      28.5 +/-    0.79  0.030 / 0.050
G32     228.5          54.7               17.1 +/-    2.35      20.4 +/-    2.35  0.030 / 0.050