PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/20-04:43:10
G07     49.5           69.1                6.1 +/-    1.16       6.5 +/-    1.16  0.360 / 0.180
G08     51.1           39.2                5.7 +/-    1.14       8.3 +/-    1.14  0.260 / 0.270
G09     175.8          36.0                7.4 +/-    1.21      11.5 +/-    1.21  0.030 / 0.030
G11     119.1          34.2                8.3 +/-    1.46      13.3 +/-    1.46  0.040 / 0.020
G17     198.5          14.5                5.9 +/-    3.74      14.9 +/-    3.74  0.030 / 0.040
G23     161.5          12.0                5.5 +/-    1.94      14.6 +/-    1.94  0.040 / 0.030
G27     38.1           11.2                8.6 +/-    3.61      23.4 +/-    3.61  0.150 / 0.220
G28     270.2          50.0                6.2 +/-    2.18       7.8 +/-    2.18  0.280 / 0.390
G30     327.8          57.0                5.4 +/-    0.69       6.3 +/-    0.69  0.100 / 0.120