PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-09:12:50
G08     270.2          17.7                6.9 +/-    2.35      16.2 +/-    2.35  0.050 / 0.060
G10     61.5           58.4                5.8 +/-    1.15       6.6 +/-    1.15  0.040 / 0.060
G14     261.9          62.2                6.4 +/-    1.32       7.1 +/-    1.32  0.220 / 0.220
G18     312.6          31.1                4.8 +/-    1.33       8.3 +/-    1.33  0.200 / 0.230
G20     104.2          14.5                4.2 +/-    1.48      10.5 +/-    1.48  0.240 / 0.390
G21     154.8          15.3                5.8 +/-    3.50      14.3 +/-    3.50  0.170 / 0.540
G24     39.5           9.6                 2.1 +/-    2.52       5.9 +/-    2.52  0.120 / 0.330
G27     231.2          15.5                7.6 +/-    1.93      18.7 +/-    1.93  0.130 / 0.350
G31     176.7          32.4                7.1 +/-    2.22      11.8 +/-    2.22  0.090 / 0.380
G32     346.4          73.5                6.7 +/-    0.44       7.0 +/-    0.44  0.140 / 0.290