PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/13-13:42:30
G01     229.4          20.9                7.5 +/-    4.04      16.2 +/-    4.04  0.190 / 0.290
G03     291.9          69.2                7.2 +/-    0.78       7.6 +/-    0.78  0.280 / 0.230
G14     82.0           26.7                6.8 +/-    0.93      12.8 +/-    0.93  0.040 / 0.040
G16     154.7          37.3                9.5 +/-    1.22      14.5 +/-    1.22  0.030 / 0.040
G22     212.1          72.7               13.0 +/-    0.50      13.5 +/-    0.50  0.090 / 0.130
G23     303.4          33.7                5.2 +/-    1.10       8.4 +/-    1.10  0.090 / 0.170
G26     112.1          53.0                9.0 +/-    0.68      11.0 +/-    0.68  0.030 / 0.030
G31     43.4           37.7                6.3 +/-    1.08       9.6 +/-    1.08  0.030 / 0.030
G32     93.2           13.9                7.7 +/-    3.19      19.6 +/-    3.19  0.200 / 0.280