PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-14:27:50
G03     242.2          71.5                8.1 +/-    0.65       8.5 +/-    0.65  0.040 / 0.040
G09     299.2          12.7               -0.3 +/-   26.21      -0.9 +/-   26.21  0.040 / 0.040
G14     94.7           17.6                7.3 +/-    1.48      17.1 +/-    1.48  0.050 / 0.060
G16     142.9          51.8               11.0 +/-    0.31      13.6 +/-    0.31  0.040 / 0.040
G22     192.5          58.3                9.1 +/-    0.40      10.4 +/-    0.40  0.170 / 0.240
G23     314.3          44.1                7.7 +/-    0.83      10.4 +/-    0.83  0.110 / 0.300
G26     84.4           55.5                7.9 +/-    0.85       9.3 +/-    0.85  0.100 / 0.240
G31     49.1           25.3                7.0 +/-    1.73      13.5 +/-    1.73  0.160 / 0.260