PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-22:58:10
G02     252.5          78.5               12.3 +/-    0.70      12.5 +/-    0.70  0.100 / 0.310
G05     169.9          19.0               18.6 +/-    2.23      42.0 +/-    2.23  0.100 / 0.250
G06     39.4           58.0               12.5 +/-    0.60      14.5 +/-    0.60  0.030 / 0.040
G12     320.7          51.7               11.8 +/-    1.22      14.6 +/-    1.22  0.030 / 0.030
G17     72.7           20.6               12.4 +/-    1.13      26.9 +/-    1.13  0.030 / 0.040
G19     59.7           36.4               12.6 +/-    0.39      19.5 +/-    0.39  0.040 / 0.040
G24     241.6          33.1               13.7 +/-    1.35      22.5 +/-    1.35  0.040 / 0.050
G25     316.8          14.7               10.5 +/-    2.18      26.4 +/-    2.18  0.040 / 0.050