PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-05:42:40
G01     226.9          17.7                4.7 +/-    3.02      11.0 +/-    3.02  0.040 / 0.040
G03     292.4          65.4                2.4 +/-    1.25       2.6 +/-    1.25  0.030 / 0.050
G09     294.3          9.5               -13.6 +/-   20.24     -38.3 +/-   20.24  0.200 / 0.430
G14     85.5           25.4                3.7 +/-    2.64       7.2 +/-    2.64  0.130 / 0.390
G16     143.5          45.5                5.7 +/-    0.91       7.6 +/-    0.91  0.040 / 0.090
G22     223.3          71.5                4.2 +/-    1.08       4.4 +/-    1.08  0.050 / 0.080
G23     306.2          35.9                3.1 +/-    2.11       4.9 +/-    2.11  0.160 / 0.220
G26     95.0           53.4                3.5 +/-    1.09       4.3 +/-    1.09  0.140 / 0.210
G31     45.6           30.8                1.3 +/-    0.49       2.2 +/-    0.49  0.050 / 0.090