PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/25-09:28:00
G08     261.8          15.9                7.7 +/-    2.08      18.7 +/-    2.08  0.140 / 0.300
G10     72.4           54.8                5.4 +/-    0.55       6.4 +/-    0.55  0.120 / 0.430
G11     306.8          21.0                5.5 +/-    3.85      11.8 +/-    3.85  0.110 / 0.320
G14     282.4          69.8                5.2 +/-    0.89       5.5 +/-    0.89  0.130 / 0.410
G18     308.0          38.4                3.3 +/-    1.09       4.9 +/-    1.09  0.030 / 0.030
G20     101.1          32.5                7.3 +/-    0.92      12.2 +/-    0.92  0.030 / 0.040
G22     299.4          10.6               -1.0 +/-    6.58      -2.9 +/-    6.58  0.050 / 0.050
G27     229.0          12.7                7.0 +/-    5.66      18.5 +/-    5.66  0.040 / 0.060
G31     177.5          35.8                8.3 +/-    1.22      13.0 +/-    1.22  0.110 / 0.340
G32     340.2          72.6                5.9 +/-    0.60       6.2 +/-    0.60  0.080 / 0.260