PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/31-09:57:40
G08     294.4          23.3                6.2 +/-    1.10      12.6 +/-    1.10  0.050 / 0.080
G10     6.0            62.8                6.1 +/-    1.37       6.8 +/-    1.37  0.050 / 0.080
G14     228.0          45.8                7.1 +/-    2.20       9.5 +/-    2.20  0.030 / 0.030
G18     317.6          10.5               -9.3 +/-    8.68     -25.8 +/-    8.68  0.030 / 0.020
G20     63.2           53.0                6.7 +/-    0.79       8.1 +/-    0.79  0.040 / 0.040
G21     145.3          39.5                7.3 +/-    0.97      10.7 +/-    0.97  0.050 / 0.040
G24     56.4           25.2                4.9 +/-    1.86       9.5 +/-    1.86  0.090 / 0.110
G27     258.4          32.7                4.2 +/-    1.81       7.0 +/-    1.81  0.080 / 0.100
G32     239.3          61.2                6.5 +/-    1.94       7.3 +/-    1.94  0.070 / 0.090