PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/16-01:28:00
G07     17.1           68.2                4.1 +/-    0.42       4.4 +/-    0.42  0.120 / 0.120
G08     63.5           48.5                3.9 +/-    0.75       5.0 +/-    0.75  0.110 / 0.070
G09     180.7          50.1                7.0 +/-    1.00       8.8 +/-    1.00  0.050 / 0.050
G11     131.3          27.0                5.5 +/-    1.13      10.2 +/-    1.13  0.060 / 0.050
G23     160.1          18.9                6.9 +/-    2.56      15.6 +/-    2.56  0.030 / 0.030
G27     40.0           16.0                1.6 +/-    1.56       3.8 +/-    1.56  0.040 / 0.030
G28     260.2          46.4                4.6 +/-    4.19       6.1 +/-    4.19  0.040 / 0.040
G30     323.8          53.4                3.6 +/-    0.46       4.3 +/-    0.46  0.040 / 0.040