PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/09-21:12:50
G05     48.1           21.4               12.0 +/-    2.30      25.6 +/-    2.30  0.160 / 0.280
G10     236.2          11.4               -1.1 +/-   47.81      -3.1 +/-   47.81  0.190 / 0.280
G13     78.0           37.6               14.8 +/-    0.80      22.5 +/-    0.80  0.040 / 0.090
G15     125.3          51.9               15.3 +/-    0.35      18.8 +/-    0.35  0.050 / 0.070
G16     316.8          10.5               -3.0 +/-   15.77      -8.3 +/-   15.77  0.100 / 0.200
G18     245.3          41.9               13.8 +/-    1.01      19.5 +/-    1.01  0.110 / 0.200
G20     28.4           66.0               13.2 +/-    0.30      14.3 +/-    0.30  0.040 / 0.040
G21     313.5          47.8               13.6 +/-    0.70      17.6 +/-    0.70  0.030 / 0.040
G26     290.8          19.4               12.0 +/-    1.04      26.8 +/-    1.04  0.270 / 0.170
G29     153.6          68.4               14.4 +/-    0.37      15.3 +/-    0.37  0.180 / 0.120