PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-18:57:20
G02     22.7           63.0                8.4 +/-    0.65       9.3 +/-    0.65  0.050 / 0.050
G05     149.9          55.5               12.8 +/-    0.62      15.2 +/-    0.62  0.030 / 0.050
G06     50.7           19.4                7.2 +/-    1.23      16.1 +/-    1.23  0.080 / 0.170
G12     197.9          72.7               10.8 +/-    1.19      11.3 +/-    1.19  0.080 / 0.180
G19     93.0           16.9               10.9 +/-    1.22      25.9 +/-    1.22  0.030 / 0.040
G25     305.2          49.1               10.8 +/-    0.90      13.8 +/-    0.90  0.040 / 0.040
G29     301.6          21.6               10.2 +/-    2.98      21.6 +/-    2.98  0.050 / 0.070