PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-15:42:40
G02     17.4           65.8                9.3 +/-    0.82      10.0 +/-    0.82  0.330 / 0.590
G05     155.9          50.5               12.0 +/-    1.06      15.0 +/-    1.06  0.170 / 0.520
G06     47.9           23.5                7.5 +/-    2.65      15.2 +/-    2.65  0.120 / 0.170
G12     226.6          78.7               10.5 +/-    0.37      10.7 +/-    0.37  0.110 / 0.120
G19     91.1           14.6                7.8 +/-    3.41      19.6 +/-    3.41  0.190 / 0.320
G24     216.7          10.7                6.8 +/-   21.85      18.7 +/-   21.85  0.190 / 0.300
G25     309.7          44.0                9.9 +/-    1.37      13.6 +/-    1.37  0.070 / 0.060
G29     298.7          19.6                9.2 +/-    1.90      20.3 +/-    1.90  0.060 / 0.070