PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/13-17:42:50
G02     17.9           65.5              -18.9 +/-    0.38     -20.5 +/-    0.38  0.020 / 0.040
G05     153.8          51.7               12.3 +/-    1.02      15.2 +/-    1.02  0.030 / 0.030
G06     48.1           23.3                7.1 +/-    0.53      14.4 +/-    0.53  0.060 / 0.100
G12     229.7          78.4                8.9 +/-    0.86       9.1 +/-    0.86  0.060 / 0.080
G19     91.5           14.4                7.9 +/-    0.94      20.0 +/-    0.94  0.040 / 0.050
G24     216.0          10.2               12.6 +/-    1.76      34.9 +/-    1.76  0.040 / 0.050
G25     309.3          44.5                8.7 +/-    1.72      11.8 +/-    1.72  0.230 / 0.440
G29     299.4          20.5                9.6 +/-    1.35      20.8 +/-    1.35  0.210 / 0.480