PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/23-03:27:50
G08     310.4          18.8                7.9 +/-    2.07      17.8 +/-    2.07  0.100 / 0.090
G10     324.9          58.6                8.0 +/-    0.75       9.2 +/-    0.75  0.120 / 0.080
G14     216.7          30.0               12.1 +/-    1.29      21.1 +/-    1.29  0.060 / 0.100
G15     46.2           15.7                5.5 +/-    1.35      13.4 +/-    1.35  0.060 / 0.090
G18     30.5           61.5                8.1 +/-    1.82       9.1 +/-    1.82  0.020 / 0.030
G21     130.8          59.9               10.5 +/-    0.53      11.9 +/-    0.53  0.020 / 0.030
G24     78.8           30.6                7.2 +/-    0.78      12.5 +/-    0.78  0.030 / 0.050
G27     276.5          37.9               10.4 +/-    1.66      15.6 +/-    1.66  0.030 / 0.040
G32     221.3          49.0                8.4 +/-    2.34      10.8 +/-    2.34  0.050 / 0.070