PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/13-08:57:40
G08     297.9          22.8                5.7 +/-    1.52      11.7 +/-    1.52  0.060 / 0.060
G10     359.4          62.6                6.3 +/-    0.63       7.0 +/-    0.63  0.050 / 0.070
G14     225.4          42.9                8.3 +/-    1.85      11.6 +/-    1.85  0.030 / 0.030
G20     58.6           54.6                6.8 +/-    0.69       8.1 +/-    0.69  0.030 / 0.030
G21     143.6          43.2                6.9 +/-    0.66       9.5 +/-    0.66  0.110 / 0.110
G24     59.6           26.6                4.6 +/-    1.59       8.7 +/-    1.59  0.080 / 0.110
G27     261.8          34.1                8.4 +/-    1.10      13.6 +/-    1.10  0.090 / 0.080
G32     234.9          57.8                6.7 +/-    1.81       7.7 +/-    1.81  0.090 / 0.110