PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-21:58:10
G10     250.8          28.5               11.9 +/-    1.51      21.4 +/-    1.51  0.040 / 0.050
G13     52.7           28.6                8.4 +/-    1.54      15.2 +/-    1.54  0.030 / 0.050
G15     86.0           57.6               10.3 +/-    0.77      12.0 +/-    0.77  0.110 / 0.160
G16     295.6          15.6                7.5 +/-    1.07      18.4 +/-    1.07  0.100 / 0.130
G20     270.6          51.0               11.0 +/-    2.86      13.7 +/-    2.86  0.030 / 0.040
G21     333.6          59.6                9.8 +/-    0.86      11.1 +/-    0.86  0.040 / 0.040
G26     268.0          15.4               10.1 +/-    2.84      24.9 +/-    2.84  0.160 / 0.330
G29     163.4          49.7               11.4 +/-    0.64      14.4 +/-    0.64  0.130 / 0.480