PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/25-14:43:10
G03     195.1          39.6               10.2 +/-    0.60      14.9 +/-    0.60  0.040 / 0.040
G07     272.6          30.4               11.7 +/-    0.83      20.3 +/-    0.83  0.030 / 0.040
G08     154.9          10.4              -13.5 +/-   31.25     -37.3 +/-   31.25  0.080 / 0.190
G09     316.5          40.2                9.5 +/-    1.48      13.8 +/-    1.48  0.070 / 0.210
G16     64.9           61.1                8.6 +/-    0.60       9.7 +/-    0.60  0.030 / 0.040
G22     181.2          23.0                8.5 +/-    4.14      17.4 +/-    4.14  0.030 / 0.050
G23     350.3          73.9                8.2 +/-    0.54       8.5 +/-    0.54  0.080 / 0.140
G26     45.9           32.5                7.4 +/-    0.43      12.2 +/-    0.43  0.070 / 0.130
G27     123.7          20.5               10.3 +/-    0.89      22.4 +/-    0.89  0.050 / 0.080