PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-19:13:00
G10     264.0          37.9               18.3 +/-    1.94      27.6 +/-    1.94  0.050 / 0.040
G13     43.0           19.5               13.9 +/-    1.99      30.9 +/-    1.99  0.040 / 0.040
G15     62.5           50.8               16.6 +/-    1.08      20.7 +/-    1.08  0.130 / 0.650
G16     281.4          13.6               11.8 +/-    1.56      30.4 +/-    1.56  0.120 / 0.450
G20     294.1          59.7               18.0 +/-    0.71      20.4 +/-    0.71  0.130 / 0.210
G21     354.7          69.2               18.3 +/-    0.85      19.4 +/-    0.85  0.110 / 0.350
G24     124.8          12.2               21.9 +/-    2.13      58.1 +/-    2.13  0.030 / 0.040
G27     320.2          16.1               12.5 +/-    1.97      30.2 +/-    1.97  0.040 / 0.040
G29     166.9          35.5               19.8 +/-    1.70      31.2 +/-    1.70  0.280 / 0.230