PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-22:57:40
G05     51.3           14.3               10.5 +/-    0.73      26.6 +/-    0.73  0.110 / 0.240
G10     241.9          17.7               13.4 +/-    0.92      31.3 +/-    0.92  0.120 / 0.220
G13     66.8           36.1               14.1 +/-    0.62      21.9 +/-    0.62  0.140 / 0.280
G15     112.1          56.5               15.6 +/-    0.42      18.3 +/-    0.42  0.160 / 0.380
G16     308.6          13.4                9.7 +/-    1.67      25.0 +/-    1.67  0.040 / 0.080
G18     254.0          47.8               12.7 +/-    1.10      16.4 +/-    1.10  0.040 / 0.070
G20     35.7           57.5               11.4 +/-    0.41      13.2 +/-    0.41  0.030 / 0.040
G21     321.3          53.0               13.7 +/-    1.68      16.7 +/-    1.68  0.040 / 0.050
G26     281.2          18.6               11.1 +/-    1.63      25.3 +/-    1.63  0.100 / 0.180
G29     159.6          59.6               15.1 +/-    0.53      17.2 +/-    0.53  0.090 / 0.210