PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/24-14:43:00
G03     231.7          67.9               11.4 +/-    0.70      12.2 +/-    0.70  0.100 / 0.360
G09     303.2          17.6                8.9 +/-    1.49      20.8 +/-    1.49  0.110 / 0.410
G14     98.5           17.7                9.2 +/-    1.94      21.4 +/-    1.94  0.050 / 0.080
G16     124.0          59.3               11.4 +/-    0.48      13.0 +/-    0.48  0.040 / 0.080
G22     188.2          51.7               12.5 +/-    1.23      15.5 +/-    1.23  0.040 / 0.050
G23     323.3          53.2               11.1 +/-    0.82      13.5 +/-    0.82  0.050 / 0.050
G26     67.1           50.3                8.7 +/-    0.33      11.0 +/-    0.33  0.060 / 0.060
G31     52.8           17.8                6.8 +/-    0.35      15.7 +/-    0.35  0.060 / 0.060