PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/01-17:27:50
G01     105.7          26.3               13.1 +/-    1.10      24.7 +/-    1.10  0.060 / 0.120
G07     108.9          57.5               13.5 +/-    0.50      15.7 +/-    0.50  0.060 / 0.130
G08     42.0           20.6                9.4 +/-    0.85      20.5 +/-    0.85  0.030 / 0.050
G09     174.4          12.2               12.6 +/-    0.92      33.5 +/-    0.92  0.030 / 0.040
G11     87.7           43.0               12.0 +/-    0.49      16.6 +/-    0.49  0.050 / 0.090
G13     308.5          29.5               11.7 +/-    1.68      20.8 +/-    1.68  0.060 / 0.080
G17     207.1          37.0               14.5 +/-    1.26      22.1 +/-    1.26  0.040 / 0.070
G18     79.1           24.5               12.2 +/-    1.09      24.1 +/-    1.09  0.050 / 0.060
G28     321.0          61.2               11.9 +/-    0.69      13.3 +/-    0.69  0.040 / 0.090
G30     32.6           78.8               13.6 +/-    0.97      13.8 +/-    0.97  0.040 / 0.090