PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-20:12:30
G02     204.3          37.6               15.5 +/-    1.76      23.5 +/-    1.76  0.080 / 0.100
G06     149.9          73.0               15.5 +/-    0.84      16.1 +/-    0.84  0.080 / 0.080
G12     309.7          19.2               10.4 +/-    1.89      23.3 +/-    1.89  0.050 / 0.100
G17     37.2           48.5               11.7 +/-    0.24      15.0 +/-    0.24  0.050 / 0.110
G19     2.9            64.4               11.9 +/-    0.80      13.0 +/-    0.80  0.090 / 0.220
G24     293.8          39.9               11.9 +/-    0.62      17.4 +/-    0.62  0.170 / 0.230
G28     105.5          29.1               12.3 +/-    0.63      22.0 +/-    0.63  0.030 / 0.050