PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/28-19:12:50
G10     266.1          37.0               13.5 +/-    1.07      20.7 +/-    1.07  0.150 / 0.290
G13     42.8           20.2               11.2 +/-    1.81      24.5 +/-    1.81  0.170 / 0.260
G15     59.4           48.6               13.2 +/-    0.35      17.0 +/-    0.35  0.030 / 0.050
G16     285.2          11.2               13.6 +/-    2.19      37.0 +/-    2.19  0.040 / 0.040
G18     301.2          64.7               11.9 +/-    0.51      13.1 +/-    0.51  0.050 / 0.140
G20     53.6           36.1               11.2 +/-    1.03      17.4 +/-    1.03  0.060 / 0.110
G21     10.5           72.7               13.8 +/-    0.81      14.4 +/-    0.81  0.170 / 0.290
G24     122.1          13.5               13.0 +/-    3.12      33.6 +/-    3.12  0.140 / 0.350
G27     318.2          19.6               12.3 +/-    2.09      27.4 +/-    2.09  0.220 / 0.620
G29     165.3          26.1               12.5 +/-    1.62      23.9 +/-    1.62  0.170 / 0.520