PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/09-17:57:50
G10     251.0          28.9               10.3 +/-    1.79      18.4 +/-    1.79  0.040 / 0.040
G13     52.5           28.4                8.5 +/-    2.45      15.4 +/-    2.45  0.040 / 0.050
G15     83.8           57.0               10.2 +/-    0.78      11.9 +/-    0.78  0.090 / 0.190
G16     294.5          15.9                8.8 +/-    2.16      21.4 +/-    2.16  0.070 / 0.190
G20     272.4          52.6               11.0 +/-    2.92      13.5 +/-    2.92  0.150 / 0.490
G21     334.4          59.9                9.5 +/-    0.76      10.8 +/-    0.76  0.190 / 0.570
G26     267.6          15.3                7.8 +/-    5.71      19.3 +/-    5.71  0.030 / 0.050
G29     163.9          50.5               12.5 +/-    0.57      15.6 +/-    0.57  0.030 / 0.040