PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/31-16:27:50
G02     15.5           66.6                6.5 +/-    0.56       7.0 +/-    0.56  0.200 / 0.290
G05     155.3          50.7               11.9 +/-    1.24      14.9 +/-    1.24  0.240 / 0.420
G06     47.9           23.6                6.7 +/-    0.54      13.4 +/-    0.54  0.020 / 0.030
G12     229.1          78.7                7.5 +/-    1.03       7.6 +/-    1.03  0.020 / 0.030
G19     91.1           14.6                8.0 +/-    1.07      20.0 +/-    1.07  0.070 / 0.080
G24     216.6          10.7               11.9 +/-    1.72      32.6 +/-    1.72  0.050 / 0.090
G25     309.8          43.9                6.4 +/-    1.71       8.8 +/-    1.71  0.060 / 0.110
G29     298.8          19.8                6.0 +/-    1.27      13.3 +/-    1.27  0.070 / 0.110