PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/16-07:58:00
G03     240.9          67.0                6.5 +/-    2.56       7.0 +/-    2.56  0.040 / 0.060
G07     249.5          10.6               -4.6 +/-   17.63     -12.7 +/-   17.63  0.050 / 0.070
G09     305.6          22.4                3.6 +/-    2.87       7.5 +/-    2.87  0.050 / 0.060
G14     102.0          11.6                1.9 +/-    3.27       5.0 +/-    3.27  0.050 / 0.040
G16     126.8          60.4                4.5 +/-    2.82       5.0 +/-    2.82  0.110 / 0.370
G22     193.1          53.7                4.3 +/-    1.54       5.2 +/-    1.54  0.090 / 0.380
G23     319.5          49.1                2.0 +/-    0.76       2.6 +/-    0.76  0.130 / 0.450
G26     68.7           52.4              -65.4 +/-   75.00     -80.2 +/-   75.00  0.090 / 0.530
G31     52.8           19.0                8.3 +/-   12.58      18.7 +/-   12.58  0.030 / 0.050