PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/16-02:28:00
G10     303.0          53.6                8.8 +/-    0.94      10.7 +/-    0.94  0.090 / 0.080
G14     211.7          13.0               13.2 +/-    1.63      34.4 +/-    1.63  0.080 / 0.080
G15     45.9           26.9                6.1 +/-    1.88      11.3 +/-    1.88  0.030 / 0.040
G20     326.6          62.1               12.3 +/-    0.54      13.8 +/-    0.54  0.030 / 0.040
G21     105.9          72.6                9.8 +/-    0.57      10.3 +/-    0.57  0.080 / 0.180
G24     92.2           27.6                9.9 +/-    1.08      18.2 +/-    1.08  0.090 / 0.120
G27     296.3          35.6               10.4 +/-    3.07      16.3 +/-    3.07  0.110 / 0.410
G32     211.9          37.5               12.6 +/-    1.31      19.0 +/-    1.31  0.160 / 0.630