PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/04-10:42:30
G07     323.7          54.3                4.6 +/-    1.76       5.5 +/-    1.76  0.110 / 0.310
G08     107.7          49.4                7.2 +/-    0.78       9.2 +/-    0.78  0.120 / 0.260
G09     195.8          78.8                4.7 +/-    1.16       4.8 +/-    1.16  0.040 / 0.080
G16     45.2           10.1                1.8 +/-    4.96       4.9 +/-    4.96  0.040 / 0.080
G23     153.0          48.6                7.0 +/-    0.42       9.0 +/-    0.42  0.120 / 0.440
G27     62.2           34.8                4.0 +/-    0.56       6.3 +/-    0.56  0.110 / 0.510
G28     232.3          24.0                6.6 +/-    1.89      13.3 +/-    1.89  0.090 / 0.130
G30     296.0          29.6                4.2 +/-    2.13       7.5 +/-    2.13  0.090 / 0.120