PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/30-17:58:00
G05     50.8           13.9                9.2 +/-    1.14      23.6 +/-    1.14  0.070 / 0.190
G10     240.2          16.1               13.6 +/-    1.77      33.0 +/-    1.77  0.050 / 0.190
G13     69.6           36.5               11.2 +/-    0.70      17.3 +/-    0.70  0.120 / 0.210
G15     112.4          55.3               13.7 +/-    0.35      16.3 +/-    0.35  0.120 / 0.220
G16     313.7          11.2                8.4 +/-    5.58      22.7 +/-    5.58  0.030 / 0.070
G18     252.3          47.8               12.5 +/-    1.02      16.3 +/-    1.02  0.040 / 0.070
G20     31.7           61.7               11.7 +/-    0.78      13.2 +/-    0.78  0.040 / 0.050
G21     321.8          53.4               11.7 +/-    0.62      14.2 +/-    0.62  0.040 / 0.050
G26     285.9          18.4               10.9 +/-    0.92      24.9 +/-    0.92  0.230 / 0.780
G29     156.1          58.6               15.3 +/-    1.13      17.6 +/-    1.13  0.260 / 0.560