PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-05:57:40
G08     263.8          16.1                8.2 +/-    1.21      19.8 +/-    1.21  0.040 / 0.040
G10     69.5           56.4                4.7 +/-    0.71       5.5 +/-    0.71  0.030 / 0.050
G11     308.4          19.7                3.0 +/-    1.58       6.6 +/-    1.58  0.140 / 0.240
G14     272.8          66.0                5.3 +/-    0.69       5.7 +/-    0.69  0.190 / 0.250
G18     309.8          35.2                4.1 +/-    1.89       6.4 +/-    1.89  0.160 / 0.270
G20     97.7           37.6                7.5 +/-    0.91      11.3 +/-    0.91  0.180 / 0.420
G21     155.6          11.7                5.1 +/-    3.09      13.7 +/-    3.09  0.200 / 0.410
G27     228.4          12.8                6.5 +/-    3.58      17.1 +/-    3.58  0.290 / 0.350
G31     175.6          37.1                7.9 +/-    0.78      12.1 +/-    0.78  0.090 / 0.100
G32     358.8          70.8                5.0 +/-    0.47       5.3 +/-    0.47  0.090 / 0.130