PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/30-03:42:50
G08     319.4          12.1                7.5 +/-    2.35      20.1 +/-    2.35  0.310 / 0.200
G10     309.8          55.5                4.6 +/-    1.93       5.5 +/-    1.93  0.120 / 0.310
G14     213.1          16.3                8.7 +/-    2.97      20.8 +/-    2.97  0.060 / 0.070
G15     45.7           22.6                4.1 +/-    2.64       8.4 +/-    2.64  0.050 / 0.080
G20     358.9          65.1                5.6 +/-    0.68       6.1 +/-    0.68  0.030 / 0.030
G21     116.2          69.2                6.8 +/-    1.02       7.2 +/-    1.02  0.030 / 0.030
G24     87.5           28.8                6.2 +/-    1.26      11.2 +/-    1.26  0.150 / 0.300
G27     291.0          36.9                8.4 +/-    2.52      12.9 +/-    2.52  0.120 / 0.330
G32     214.2          41.9                6.9 +/-    1.28       9.7 +/-    1.28  0.150 / 0.200