PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/04-19:57:50
G08     265.8          17.5               13.3 +/-    1.06      31.2 +/-    1.06  0.250 / 0.210
G10     63.0           58.4               12.6 +/-    0.77      14.5 +/-    0.77  0.150 / 0.210
G11     310.8          17.9               14.5 +/-    2.22      33.6 +/-    2.22  0.070 / 0.110
G14     271.3          67.3               12.7 +/-    0.84      13.7 +/-    0.84  0.080 / 0.090
G18     94.1           34.0               13.8 +/-    1.00      22.2 +/-    1.00  0.080 / 0.460
G24     39.6           10.1               13.8 +/-    3.53      38.6 +/-    3.53  0.110 / 0.380
G27     229.5          14.5               13.0 +/-    1.18      32.7 +/-    1.18  0.050 / 0.040
G31     179.7          30.0               13.8 +/-    1.28      24.2 +/-    1.28  0.050 / 0.040
G32     338.9          73.6               12.9 +/-    0.35      13.4 +/-    0.35  0.020 / 0.020