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               18.5 +/-    1.68      32.9 +/-    1.68  0.040 / 0.060
G13     52.0           28.1               11.5 +/-    1.32      21.0 +/-    1.32  0.040 / 0.050
G15     85.4           57.8               16.8 +/-    0.31      19.4 +/-    0.31  0.150 / 0.830
G16     294.5          15.7               12.5 +/-    3.28      30.7 +/-    3.28  0.150 / 0.730
G20     272.2          52.0               17.1 +/-    0.83      21.1 +/-    0.83  0.060 / 0.190
G21     334.5          60.1               16.0 +/-    0.63      18.1 +/-    0.63  0.060 / 0.170
G26     267.2          15.1               17.8 +/-    1.69      44.2 +/-    1.69  0.030 / 0.040
G29     163.9          49.2               17.7 +/-    1.61      22.5 +/-    1.61  0.030 / 0.060