PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/14-02:42:50
G08     290.7          23.6                8.4 +/-    1.08      17.0 +/-    1.08  0.040 / 0.030
G10     6.8            63.2                7.0 +/-    1.14       7.8 +/-    1.14  0.030 / 0.020
G14     231.2          49.0               11.3 +/-    2.74      14.4 +/-    2.74  0.040 / 0.030
G18     63.1           51.8                7.7 +/-    0.87       9.5 +/-    0.87  0.030 / 0.030
G21     146.4          39.3                9.2 +/-    2.43      13.6 +/-    2.43  0.040 / 0.060
G24     56.6           26.3                6.2 +/-    1.66      11.8 +/-    1.66  0.040 / 0.060
G27     251.7          31.0               10.5 +/-    3.18      18.0 +/-    3.18  0.070 / 0.110
G32     246.8          66.9                8.0 +/-    0.69       8.6 +/-    0.69  0.120 / 0.110