PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/08-23:13:10
G02     201.1          28.2               14.4 +/-    1.29      26.1 +/-    1.29  0.070 / 0.100
G06     171.8          58.7               12.6 +/-    0.62      14.4 +/-    0.62  0.080 / 0.090
G17     30.4           53.5               11.4 +/-    0.65      13.8 +/-    0.65  0.080 / 0.080
G19     344.0          68.9               10.4 +/-    0.58      11.1 +/-    0.58  0.050 / 0.080
G24     303.5          35.3                9.3 +/-    1.74      14.7 +/-    1.74  0.040 / 0.040
G28     92.8           39.1               12.3 +/-    1.83      18.2 +/-    1.83  0.030 / 0.040