PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-02:27:30
G03     227.9          64.3                4.8 +/-    1.11       5.2 +/-    1.11  0.040 / 0.050
G07     252.1          11.8                0.7 +/-   14.14       1.8 +/-   14.14  0.040 / 0.050
G09     307.0          23.2                3.5 +/-    1.19       7.2 +/-    1.19  0.110 / 0.200
G14     104.9          9.6                 4.8 +/-    1.98      13.6 +/-    1.98  0.220 / 0.250
G16     127.7          62.6                6.4 +/-    0.71       7.1 +/-    0.71  0.030 / 0.030
G22     192.6          50.1                6.2 +/-    0.39       7.8 +/-    0.39  0.040 / 0.030
G23     322.8          52.7                4.5 +/-    0.76       5.5 +/-    0.76  0.260 / 0.280
G26     64.6           51.7                3.2 +/-    1.15       3.9 +/-    1.15  0.280 / 0.150
G31     54.1           18.7                2.2 +/-    2.84       5.1 +/-    2.84  0.100 / 0.110