PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/24-15:27:50
G01     275.1          41.9                7.5 +/-    3.70      10.6 +/-    3.70  0.050 / 0.060
G03     315.5          28.8                5.1 +/-    1.66       9.2 +/-    1.66  0.080 / 0.050
G10     127.5          18.7                6.8 +/-    2.85      15.5 +/-    2.85  0.060 / 0.050
G11     252.2          21.2                7.2 +/-    1.22      15.3 +/-    1.22  0.060 / 0.080
G14     40.3           51.4                6.1 +/-    1.00       7.5 +/-    1.00  0.050 / 0.060
G18     233.1          40.8                7.5 +/-    1.29      10.7 +/-    1.29  0.050 / 0.060
G22     314.8          51.1                6.0 +/-    1.19       7.4 +/-    1.19  0.110 / 0.150
G25     53.4           16.0                5.8 +/-    3.31      14.0 +/-    3.31  0.100 / 0.130
G31     75.2           79.7                6.8 +/-    0.39       6.9 +/-    0.39  0.130 / 0.360
G32     58.8           37.6                5.5 +/-    1.24       8.4 +/-    1.24  0.180 / 0.410