PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-02:27:40
G07     322.5          54.3                4.7 +/-    0.61       5.6 +/-    0.61  0.110 / 0.160
G08     110.9          48.6                7.0 +/-    0.43       9.0 +/-    0.43  0.090 / 0.160
G09     190.7          79.1                5.4 +/-    0.42       5.4 +/-    0.42  0.050 / 0.050
G16     44.9           11.5                2.3 +/-    1.93       6.3 +/-    1.93  0.040 / 0.050
G23     152.6          50.4                6.8 +/-    0.66       8.5 +/-    0.66  0.240 / 0.560
G27     63.5           34.8                4.7 +/-    1.06       7.5 +/-    1.06  0.160 / 0.300
G28     230.0          15.3                5.9 +/-    3.62      14.7 +/-    3.62  0.330 / 0.440
G30     294.1          27.2                5.1 +/-    2.44       9.5 +/-    2.44  0.190 / 0.300