PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-20:42:30
G10     251.5          29.1               18.1 +/-    1.75      32.4 +/-    1.75  0.040 / 0.050
G13     52.0           28.1               11.1 +/-    2.53      20.1 +/-    2.53  0.040 / 0.040
G15     85.4           57.8               16.2 +/-    0.53      18.8 +/-    0.53  0.070 / 0.190
G16     294.5          15.7               13.1 +/-    1.51      31.9 +/-    1.51  0.100 / 0.210
G20     272.2          52.0               17.1 +/-    2.23      21.1 +/-    2.23  0.030 / 0.040
G21     334.5          60.1               15.2 +/-    0.78      17.3 +/-    0.78  0.030 / 0.040
G26     267.2          15.1               15.6 +/-    3.78      38.8 +/-    3.78  0.130 / 0.350
G29     163.9          49.2               17.3 +/-    0.73      22.0 +/-    0.73  0.120 / 0.360