PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-10:13:00
G08     293.1          23.5                6.1 +/-    1.53      12.3 +/-    1.53  0.040 / 0.070
G10     8.7            62.8                3.3 +/-    0.71       3.6 +/-    0.71  0.050 / 0.070
G14     229.0          46.9                7.0 +/-    2.39       9.2 +/-    2.39  0.020 / 0.020
G18     317.6          11.6               -1.5 +/-   18.75      -3.9 +/-   18.75  0.030 / 0.020
G20     65.0           52.3                5.3 +/-    1.18       6.5 +/-    1.18  0.030 / 0.030
G21     145.9          38.2                6.7 +/-    0.93      10.1 +/-    0.93  0.030 / 0.030
G24     55.3           24.6                3.5 +/-    2.15       6.8 +/-    2.15  0.120 / 0.110
G27     257.1          32.2                5.0 +/-    1.88       8.4 +/-    1.88  0.100 / 0.110
G32     241.2          62.4                7.2 +/-    1.03       8.0 +/-    1.03  0.070 / 0.100