PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/13-17:13:10
G02     59.2           33.4                7.4 +/-    2.63      12.2 +/-    2.63  0.340 / 0.510
G05     57.9           62.1                9.3 +/-    0.71      10.4 +/-    0.71  0.310 / 0.490
G12     183.4          31.4                9.0 +/-    1.33      15.2 +/-    1.33  0.190 / 0.380
G13     125.8          15.6               12.7 +/-    2.28      31.1 +/-    2.28  0.170 / 0.480
G15     163.6          13.1               12.5 +/-    2.35      32.6 +/-    2.35  0.250 / 0.290
G21     272.2          17.1                8.4 +/-    1.29      20.0 +/-    1.29  0.170 / 0.220
G25     236.5          51.5                9.6 +/-    2.70      11.9 +/-    2.70  0.050 / 0.090
G29     329.1          55.0                7.8 +/-    0.69       9.3 +/-    0.69  0.080 / 0.100