PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-20:13:10
G05     50.3           15.0                7.9 +/-    1.11      19.7 +/-    1.11  0.100 / 0.320
G10     239.5          16.4               13.8 +/-    1.04      33.2 +/-    1.04  0.140 / 0.260
G13     69.1           35.4               11.2 +/-    0.52      17.6 +/-    0.52  0.090 / 0.230
G15     126.5          54.9               12.1 +/-    0.45      14.4 +/-    0.45  0.110 / 0.210
G16     309.0          14.3                9.0 +/-    2.18      22.9 +/-    2.18  0.050 / 0.080
G20     252.9          40.7               13.5 +/-    1.46      19.4 +/-    1.46  0.070 / 0.080
G21     318.0          50.2               12.4 +/-    0.90      15.6 +/-    0.90  0.080 / 0.120
G26     281.8          19.8               10.4 +/-    1.73      22.9 +/-    1.73  0.080 / 0.150
G29     159.1          67.3               12.9 +/-    1.17      13.9 +/-    1.17  0.030 / 0.040