PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-02:28:00
G08     309.9          19.1                7.6 +/-    0.84      17.2 +/-    0.84  0.090 / 0.090
G10     326.1          58.8               10.6 +/-    0.96      12.1 +/-    0.96  0.070 / 0.060
G14     217.0          30.6               15.3 +/-    2.01      26.4 +/-    2.01  0.030 / 0.050
G15     46.3           14.5                7.4 +/-    2.74      18.7 +/-    2.74  0.040 / 0.040
G18     32.5           61.1               13.2 +/-    0.63      14.8 +/-    0.63  0.090 / 0.110
G21     131.6          59.0               12.2 +/-    0.42      14.0 +/-    0.42  0.100 / 0.110
G24     78.1           30.6               11.3 +/-    1.22      19.6 +/-    1.22  0.030 / 0.030
G27     275.6          37.9               11.0 +/-    1.96      16.5 +/-    1.96  0.030 / 0.030
G32     221.8          49.0               10.9 +/-    2.04      13.9 +/-    2.04  0.100 / 0.150