PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/10-19:57:30
G10     251.5          29.2               12.0 +/-    1.17      21.5 +/-    1.17  0.240 / 0.730
G13     52.0           28.1                8.4 +/-    1.38      15.4 +/-    1.38  0.170 / 0.610
G15     86.1           58.1               11.7 +/-    0.40      13.6 +/-    0.40  0.040 / 0.050
G16     294.3          15.8                8.7 +/-    2.78      21.3 +/-    2.78  0.040 / 0.050
G20     272.4          52.3               12.4 +/-    0.81      15.2 +/-    0.81  0.060 / 0.160
G21     334.6          60.1               11.5 +/-    0.63      13.0 +/-    0.63  0.060 / 0.180
G26     267.1          15.1               10.9 +/-    1.99      27.0 +/-    1.99  0.030 / 0.040
G29     164.0          49.4               12.1 +/-    2.10      15.4 +/-    2.10  0.030 / 0.050