PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-02:12:30
G08     295.3          23.3                9.3 +/-    1.31      18.9 +/-    1.31  0.030 / 0.040
G10     357.2          62.7               10.4 +/-    0.64      11.5 +/-    0.64  0.030 / 0.030
G14     227.3          45.0               11.8 +/-    1.41      16.0 +/-    1.41  0.040 / 0.060
G18     57.4           53.9               10.6 +/-    0.81      12.8 +/-    0.81  0.040 / 0.070
G21     144.0          43.5               12.8 +/-    1.46      17.6 +/-    1.46  0.050 / 0.110
G24     60.8           28.0                9.8 +/-    1.25      18.0 +/-    1.25  0.050 / 0.090
G27     256.5          33.2               12.0 +/-    1.62      19.7 +/-    1.62  0.050 / 0.100
G32     239.0          63.1               13.1 +/-    0.36      14.5 +/-    0.36  0.070 / 0.110