PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-06:43:10
G01     228.4          19.1                5.9 +/-    3.55      13.4 +/-    3.55  0.030 / 0.030
G03     295.7          64.5                4.9 +/-    1.10       5.4 +/-    1.10  0.040 / 0.030
G14     83.4           27.2                3.0 +/-    1.46       5.6 +/-    1.46  0.210 / 0.390
G16     145.6          43.6                6.3 +/-    1.03       8.7 +/-    1.03  0.130 / 0.400
G22     226.1          72.7                5.4 +/-    0.50       5.7 +/-    0.50  0.080 / 0.160
G23     305.2          35.3                5.2 +/-    1.46       8.2 +/-    1.46  0.080 / 0.170
G26     98.7           53.0                6.1 +/-    0.69       7.5 +/-    0.69  0.090 / 0.120
G31     44.9           32.5                2.3 +/-    0.83       3.8 +/-    0.83  0.060 / 0.100