PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-13:57:50
G03     212.6          62.5                7.6 +/-    1.81       8.5 +/-    1.81  0.110 / 0.240
G07     253.5          16.5                7.0 +/-    4.18      16.8 +/-    4.18  0.090 / 0.140
G09     306.2          21.5                5.7 +/-    4.68      12.1 +/-    4.68  0.040 / 0.050
G14     104.3          9.9                 9.0 +/-    2.32      25.2 +/-    2.32  0.040 / 0.040
G16     121.8          62.0                7.5 +/-    0.47       8.3 +/-    0.47  0.070 / 0.060
G22     187.4          45.8                7.6 +/-    0.85      10.1 +/-    0.85  0.060 / 0.070
G23     324.3          54.2                5.9 +/-    0.47       7.0 +/-    0.47  0.210 / 0.380
G26     63.4           50.2                4.7 +/-    1.78       5.9 +/-    1.78  0.160 / 0.410
G31     55.4           15.5                4.4 +/-    1.74      10.8 +/-    1.74  0.040 / 0.040