PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/30-01:42:40
G08     288.2          23.5               10.7 +/-    0.96      21.7 +/-    0.96  0.050 / 0.120
G10     12.4           63.3                9.9 +/-    0.51      11.0 +/-    0.51  0.060 / 0.110
G14     233.6          51.1               13.4 +/-    0.97      16.7 +/-    0.97  0.030 / 0.030
G18     66.8           50.1               11.8 +/-    1.38      14.8 +/-    1.38  0.020 / 0.030
G21     147.5          36.3               13.0 +/-    0.99      20.1 +/-    0.99  0.040 / 0.110
G24     54.4           25.2               10.9 +/-    0.82      21.2 +/-    0.82  0.040 / 0.120
G27     249.2          29.6               13.1 +/-    1.92      23.2 +/-    1.92  0.080 / 0.140
G32     251.4          68.2               11.5 +/-    0.46      12.3 +/-    0.46  0.090 / 0.150