PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/11-05:58:00
G10     241.9          20.0                6.5 +/-    3.71      14.2 +/-    3.71  0.190 / 0.420
G13     64.4           33.9                7.0 +/-    1.32      11.3 +/-    1.32  0.280 / 0.440
G15     106.4          56.5                8.7 +/-    0.63      10.2 +/-    0.63  0.030 / 0.040
G16     310.3          12.6                3.8 +/-    2.99      10.0 +/-    2.99  0.050 / 0.050
G20     257.1          43.7                8.1 +/-    2.63      11.1 +/-    2.63  0.160 / 0.360
G21     324.6          54.4                5.2 +/-    0.94       6.3 +/-    0.94  0.140 / 0.240
G26     281.9          18.2                6.1 +/-    1.31      14.1 +/-    1.31  0.060 / 0.100
G29     156.6          57.3                8.2 +/-    0.62       9.5 +/-    0.62  0.080 / 0.110