PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/06-18:28:00
G02     328.3          79.4                7.5 +/-    0.76       7.6 +/-    0.76  0.040 / 0.090
G05     164.9          32.8               10.8 +/-    0.74      17.9 +/-    0.74  0.040 / 0.110
G06     42.0           38.7                6.2 +/-    0.38       9.2 +/-    0.38  0.030 / 0.030
G12     309.9          75.3                7.3 +/-    1.14       7.5 +/-    1.14  0.030 / 0.030
G17     86.1           10.9                8.6 +/-    1.77      23.4 +/-    1.77  0.030 / 0.040
G19     72.7           30.3                8.9 +/-    0.57      15.5 +/-    0.57  0.030 / 0.030
G24     227.2          22.6               12.8 +/-    3.29      26.4 +/-    3.29  0.160 / 0.210
G25     317.2          29.0                6.9 +/-    1.57      12.4 +/-    1.57  0.100 / 0.180