PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/07-21:57:50
G08     316.0          15.2               13.6 +/-    3.38      33.6 +/-    3.38  0.030 / 0.050
G10     313.4          56.1               17.0 +/-    0.94      20.1 +/-    0.94  0.040 / 0.050
G14     213.7          23.2               25.7 +/-    2.42      52.3 +/-    2.42  0.040 / 0.070
G15     45.6           18.6               14.0 +/-    1.03      31.9 +/-    1.03  0.040 / 0.080
G18     22.2           63.0               16.8 +/-    0.63      18.6 +/-    0.63  0.070 / 0.120
G20     79.2           11.3               17.3 +/-    3.18      47.0 +/-    3.18  0.070 / 0.130
G21     122.6          63.6               22.3 +/-    0.53      24.6 +/-    0.53  0.100 / 0.290
G24     86.8           29.8               19.8 +/-    0.58      34.7 +/-    0.58  0.100 / 0.280
G27     285.5          37.9               17.7 +/-    1.25      26.7 +/-    1.25  0.130 / 0.510
G32     216.9          39.5               23.0 +/-    1.02      33.7 +/-    1.02  0.090 / 0.450