PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-17:42:50
G02     16.1           66.9                9.9 +/-    1.18      10.7 +/-    1.18  0.040 / 0.050
G05     154.6          51.1               12.8 +/-    0.94      16.0 +/-    0.94  0.040 / 0.060
G06     48.7           22.5                8.3 +/-    0.69      17.3 +/-    0.69  0.020 / 0.030
G12     204.6          76.7               10.0 +/-    0.78      10.3 +/-    0.78  0.030 / 0.040
G19     89.1           19.7               10.8 +/-    0.85      23.9 +/-    0.85  0.070 / 0.110
G25     309.1          45.9               10.0 +/-    1.78      13.3 +/-    1.78  0.090 / 0.120
G29     298.5          18.7                8.9 +/-    1.07      20.1 +/-    1.07  0.070 / 0.080