PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-10:27:20
G01     46.9           22.8                3.8 +/-    2.79       7.8 +/-    2.79  0.030 / 0.030
G06     175.8          27.9                5.3 +/-    1.77       9.7 +/-    1.77  0.030 / 0.030
G11     44.4           14.9                2.7 +/-    1.80       6.7 +/-    1.80  0.040 / 0.050
G13     246.5          29.8                6.2 +/-    1.14      10.9 +/-    1.14  0.040 / 0.030
G15     281.4          15.1                2.4 +/-    3.89       5.9 +/-    3.89  0.090 / 0.120
G17     316.7          78.2                5.9 +/-    0.40       6.0 +/-    0.40  0.120 / 0.130
G19     251.3          64.0                5.6 +/-    0.48       6.1 +/-    0.48  0.060 / 0.070
G28     45.7           56.5                4.3 +/-    1.06       5.0 +/-    1.06  0.060 / 0.050
G30     151.4          40.8                6.5 +/-    1.17       9.3 +/-    1.17  0.160 / 0.430