PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-20:42:30
G02     204.5          38.4               17.1 +/-    1.08      25.5 +/-    1.08  0.110 / 0.150
G06     148.7          73.5               14.2 +/-    0.83      14.7 +/-    0.83  0.100 / 0.200
G12     310.0          19.4               11.4 +/-    1.04      25.4 +/-    1.04  0.080 / 0.080
G17     37.4           48.3               12.3 +/-    1.37      15.8 +/-    1.37  0.080 / 0.080
G19     4.5            63.9               12.6 +/-    0.54      13.9 +/-    0.54  0.030 / 0.030
G24     293.2          40.1               11.9 +/-    8.94      17.4 +/-    8.94  0.030 / 0.030
G28     106.1          28.6               15.8 +/-    0.77      28.5 +/-    0.77  0.040 / 0.030