PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/31-22:13:00
G02     356.9          75.6                8.3 +/-    0.60       8.5 +/-    0.60  0.120 / 0.120
G05     161.5          37.8               11.4 +/-    1.01      17.1 +/-    1.01  0.090 / 0.100
G06     41.9           37.9                7.6 +/-    0.94      11.4 +/-    0.94  0.100 / 0.220
G12     306.8          72.2                7.8 +/-    0.76       8.2 +/-    0.76  0.100 / 0.250
G19     78.5           24.0                9.3 +/-    1.14      18.5 +/-    1.14  0.030 / 0.030
G24     225.2          19.9               12.0 +/-    1.77      26.5 +/-    1.77  0.030 / 0.040
G25     316.2          32.1                8.6 +/-    1.22      14.5 +/-    1.22  0.040 / 0.040
G29     289.5          13.0               11.2 +/-    1.66      29.2 +/-    1.66  0.030 / 0.040