PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/26-07:43:10
G10     257.2          32.8                7.2 +/-    1.73      12.0 +/-    1.73  0.060 / 0.030
G13     47.3           24.7                4.3 +/-    1.76       8.5 +/-    1.76  0.050 / 0.040
G15     71.1           54.1                5.1 +/-    0.59       6.1 +/-    0.59  0.130 / 0.310
G16     293.7          13.4                3.2 +/-    1.66       8.3 +/-    1.66  0.090 / 0.260
G20     281.0          55.5                5.5 +/-    2.30       6.5 +/-    2.30  0.130 / 0.100
G21     350.5          67.0                4.2 +/-    0.65       4.6 +/-    0.65  0.110 / 0.240
G26     265.2          12.3                7.3 +/-    1.71      19.3 +/-    1.71  0.080 / 0.090
G29     162.8          35.9                6.3 +/-    0.75       9.8 +/-    0.75  0.060 / 0.090