PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/17-22:43:10
G05     47.7           22.3                8.1 +/-    1.85      16.9 +/-    1.85  0.100 / 0.230
G13     79.5           37.5                9.9 +/-    0.84      15.0 +/-    0.84  0.130 / 0.230
G15     128.9          50.8               11.6 +/-    0.67      14.4 +/-    0.67  0.140 / 0.240
G16     317.2          10.5               -4.5 +/-   12.72     -12.3 +/-   12.72  0.050 / 0.080
G18     243.8          40.2               12.8 +/-    1.23      18.6 +/-    1.23  0.060 / 0.070
G20     28.0           66.9               10.2 +/-    0.46      11.0 +/-    0.46  0.140 / 0.220
G21     311.5          46.4                9.3 +/-    0.96      12.3 +/-    0.96  0.130 / 0.180
G26     291.3          19.8                7.2 +/-    1.21      16.0 +/-    1.21  0.030 / 0.030
G29     153.2          71.1               11.0 +/-    1.20      11.5 +/-    1.20  0.030 / 0.030