PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/06-00:13:00
G02     250.4          78.5               12.7 +/-    0.74      13.0 +/-    0.74  0.050 / 0.050
G05     169.9          18.9               19.3 +/-    2.09      43.6 +/-    2.09  0.050 / 0.050
G06     40.3           55.8               13.1 +/-    0.57      15.5 +/-    0.57  0.070 / 0.070
G12     321.5          54.4               13.1 +/-    0.94      15.7 +/-    0.94  0.070 / 0.070
G17     71.0           24.2               14.1 +/-    0.68      28.1 +/-    0.68  0.050 / 0.250
G19     58.4           38.3               12.7 +/-    0.46      18.9 +/-    0.46  0.050 / 0.170
G24     242.9          33.6               16.3 +/-    1.14      26.7 +/-    1.14  0.090 / 0.220
G25     317.0          13.4               10.0 +/-    1.33      25.8 +/-    1.33  0.080 / 0.230