PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-07:58:00
G08     264.6          15.8                6.4 +/-    7.43      15.7 +/-    7.43  0.030 / 0.050
G10     70.4           56.2                4.5 +/-    0.64       5.2 +/-    0.64  0.040 / 0.050
G11     308.4          19.6                3.6 +/-    1.28       7.9 +/-    1.28  0.250 / 0.410
G14     272.4          65.4                5.3 +/-    0.44       5.8 +/-    0.44  0.360 / 0.490
G18     309.6          35.4                4.3 +/-    1.33       6.8 +/-    1.33  0.210 / 0.210
G20     104.5          21.8                3.3 +/-    1.14       7.0 +/-    1.14  0.310 / 0.370
G21     155.6          10.9                4.2 +/-    2.03      11.5 +/-    2.03  0.210 / 0.290
G27     227.8          12.3                4.9 +/-    4.81      13.0 +/-    4.81  0.240 / 0.350
G31     175.4          37.8                5.2 +/-    0.82       7.8 +/-    0.82  0.100 / 0.260
G32     0.2            70.3                4.8 +/-    0.51       5.1 +/-    0.51  0.100 / 0.230