PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-07:28:10
G08     281.2          21.2                6.9 +/-    1.52      14.8 +/-    1.52  0.060 / 0.080
G10     37.6           62.0                5.0 +/-    0.46       5.6 +/-    0.46  0.050 / 0.090
G14     243.5          53.7                7.3 +/-    1.22       8.9 +/-    1.22  0.080 / 0.150
G18     316.7          21.0                5.0 +/-    2.58      10.8 +/-    2.58  0.080 / 0.170
G20     90.6           32.0                5.2 +/-    1.03       8.7 +/-    1.03  0.090 / 0.190
G21     152.2          27.2                7.2 +/-    1.11      13.4 +/-    1.11  0.110 / 0.230
G24     45.3           17.7                2.0 +/-    0.66       4.6 +/-    0.66  0.020 / 0.030
G27     240.8          23.5                7.0 +/-    1.17      14.1 +/-    1.17  0.030 / 0.030
G31     179.2          20.5                5.8 +/-    1.73      12.6 +/-    1.73  0.090 / 0.240
G32     296.9          76.8                6.7 +/-    0.36       6.8 +/-    0.36  0.120 / 0.250