PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-06:12:30
G07     326.9          56.2                4.6 +/-    0.67       5.4 +/-    0.67  0.030 / 0.030
G08     112.2          49.6                6.0 +/-    1.15       7.6 +/-    1.15  0.030 / 0.040
G09     198.5          79.0                6.2 +/-    0.44       6.3 +/-    0.44  0.050 / 0.080
G11     150.7          10.0               -6.7 +/-    7.00     -18.6 +/-    7.00  0.050 / 0.070
G16     45.3           10.3                2.2 +/-    2.94       6.0 +/-    2.94  0.030 / 0.020
G23     152.8          46.8                6.4 +/-    0.43       8.5 +/-    0.43  0.030 / 0.020
G27     61.7           34.4                5.5 +/-    1.65       8.8 +/-    1.65  0.200 / 0.520
G28     231.3          17.8                4.7 +/-    3.05      10.9 +/-    3.05  0.110 / 0.590
G30     296.3          29.8                5.1 +/-    2.22       8.9 +/-    2.22  0.140 / 0.120