PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/18-18:57:50
G08     319.0          12.6               11.8 +/-    2.22      31.2 +/-    2.22  0.050 / 0.070
G10     307.5          54.6               10.0 +/-    0.81      11.9 +/-    0.81  0.050 / 0.080
G14     212.4          19.2               15.8 +/-    2.33      35.5 +/-    2.33  0.030 / 0.040
G15     45.4           20.9               12.3 +/-    2.35      26.5 +/-    2.35  0.040 / 0.030
G18     17.0           63.8               11.5 +/-    0.30      12.7 +/-    0.30  0.090 / 0.090
G20     76.1           14.8               12.0 +/-    2.32      30.0 +/-    2.32  0.080 / 0.090
G21     117.8          64.7               14.5 +/-    0.46      15.9 +/-    0.46  0.140 / 0.310
G24     90.9           29.0               15.1 +/-    1.87      26.9 +/-    1.87  0.120 / 0.340
G27     290.4          37.3                9.7 +/-    3.08      14.8 +/-    3.08  0.160 / 0.360
G32     214.6          37.4               14.5 +/-    1.92      22.1 +/-    1.92  0.340 / 0.400