PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/15-20:12:40
G08     320.0          11.9               10.1 +/-    1.38      27.0 +/-    1.38  0.100 / 0.100
G10     304.7          54.2               11.9 +/-    1.35      14.4 +/-    1.35  0.070 / 0.080
G14     211.4          15.7               14.6 +/-    1.78      35.6 +/-    1.78  0.040 / 0.050
G15     46.0           27.7                8.8 +/-    2.03      16.2 +/-    2.03  0.030 / 0.040
G20     3.5            64.9               10.6 +/-    0.36      11.6 +/-    0.36  0.280 / 0.290
G21     110.1          70.3               12.8 +/-    0.99      13.5 +/-    0.99  0.150 / 0.260
G24     89.0           27.5               12.7 +/-    1.33      23.6 +/-    1.33  0.090 / 0.100
G27     296.8          35.1               12.7 +/-    1.59      20.2 +/-    1.59  0.090 / 0.130
G32     212.5          37.1               15.2 +/-    1.74      23.2 +/-    1.74  0.130 / 0.270