PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/06-16:27:40
G01     122.0          15.7               12.6 +/-    1.55      30.7 +/-    1.55  0.050 / 0.070
G07     70.7           68.3               13.1 +/-    0.94      14.0 +/-    0.94  0.040 / 0.070
G08     47.0           35.7               10.8 +/-    0.68      16.9 +/-    0.68  0.030 / 0.040
G09     177.1          29.1               13.2 +/-    1.86      23.5 +/-    1.86  0.030 / 0.030
G11     111.7          38.5               13.6 +/-    1.12      20.4 +/-    1.12  0.080 / 0.270
G13     319.2          16.7               11.6 +/-    1.92      27.7 +/-    1.92  0.090 / 0.220
G17     201.6          19.2               13.4 +/-    2.38      30.0 +/-    2.38  0.030 / 0.040
G18     97.9           19.5               11.9 +/-    1.22      26.4 +/-    1.22  0.030 / 0.050
G28     286.8          56.0               13.0 +/-    0.59      15.3 +/-    0.59  0.040 / 0.060
G30     341.7          66.0               12.3 +/-    0.50      13.3 +/-    0.50  0.040 / 0.060