PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-08:58:10
G08     265.4          15.8                6.7 +/-    1.95      16.2 +/-    1.95  0.060 / 0.070
G10     70.1           56.3                4.9 +/-    0.94       5.8 +/-    0.94  0.040 / 0.060
G11     308.8          19.2                4.4 +/-    2.85       9.9 +/-    2.85  0.220 / 0.480
G14     271.3          64.8                3.5 +/-    1.03       3.8 +/-    1.03  0.130 / 0.420
G18     309.8          35.1                5.0 +/-    1.91       7.9 +/-    1.91  0.120 / 0.220
G20     106.8          14.3                4.2 +/-    1.59      10.6 +/-    1.59  0.110 / 0.220
G21     155.5          10.8                3.7 +/-    2.45      10.2 +/-    2.45  0.040 / 0.030
G27     227.8          12.4                3.6 +/-   20.32       9.5 +/-   20.32  0.030 / 0.030
G31     175.5          37.6                5.6 +/-    1.38       8.4 +/-    1.38  0.030 / 0.040
G32     359.6          70.5                5.6 +/-    0.97       5.9 +/-    0.97  0.030 / 0.040