PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/06-14:57:30
G07     331.8          57.5               10.8 +/-    0.73      12.5 +/-    0.73  0.030 / 0.080
G08     101.9          52.1               11.5 +/-    0.45      14.2 +/-    0.45  0.030 / 0.040
G09     190.5          73.6               12.5 +/-    0.44      13.0 +/-    0.44  0.030 / 0.040
G11     146.4          12.9               13.3 +/-    2.65      34.9 +/-    2.65  0.040 / 0.040
G23     154.3          38.8               12.5 +/-    1.37      18.6 +/-    1.37  0.070 / 0.110
G27     55.3           31.8                8.2 +/-    1.58      13.8 +/-    1.58  0.060 / 0.110
G28     237.1          29.4               13.0 +/-    1.31      23.0 +/-    1.31  0.050 / 0.090
G30     301.8          35.0                9.8 +/-    1.21      15.5 +/-    1.21  0.070 / 0.080