PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/29-02:28:10
G10     299.4          52.0                7.3 +/-    1.69       9.0 +/-    1.69  0.190 / 0.130
G14     210.6          15.5               10.3 +/-    4.06      25.4 +/-    4.06  0.150 / 0.170
G15     46.1           28.9                6.2 +/-    1.43      11.1 +/-    1.43  0.060 / 0.090
G18     359.0          65.9                7.6 +/-    0.66       8.3 +/-    0.66  0.080 / 0.110
G20     73.4           15.3                5.6 +/-    1.78      13.9 +/-    1.78  0.060 / 0.050
G21     102.3          72.9                8.4 +/-    0.28       8.8 +/-    0.28  0.100 / 0.050
G24     96.8           27.3                7.6 +/-    1.17      14.1 +/-    1.17  0.040 / 0.030
G27     296.3          35.9                8.9 +/-    1.50      13.9 +/-    1.50  0.030 / 0.030
G32     211.9          33.4               10.0 +/-    1.99      16.3 +/-    1.99  0.070 / 0.070