PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/25-04:57:50
G01     220.9          13.1                6.4 +/-    3.14      16.6 +/-    3.14  0.140 / 0.440
G03     273.3          69.9                7.1 +/-    0.98       7.5 +/-    0.98  0.170 / 0.510
G09     297.0          11.0                0.3 +/-   33.52       0.9 +/-   33.52  0.100 / 0.270
G14     90.1           22.4                4.2 +/-    0.79       8.6 +/-    0.79  0.100 / 0.320
G16     139.4          50.0                8.0 +/-    1.08      10.2 +/-    1.08  0.040 / 0.050
G22     209.7          66.2                6.6 +/-    1.18       7.1 +/-    1.18  0.040 / 0.050
G23     313.2          43.7                5.7 +/-    0.89       7.8 +/-    0.89  0.050 / 0.090
G26     86.7           54.1                6.4 +/-    0.78       7.8 +/-    0.78  0.050 / 0.080
G31     48.1           26.1                5.3 +/-    1.01      10.0 +/-    1.01  0.050 / 0.080