PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/06-19:12:30
G02     287.1          80.2               14.1 +/-    0.81      14.3 +/-    0.81  0.040 / 0.030
G05     170.2          24.9               18.2 +/-    2.13      35.6 +/-    2.13  0.040 / 0.030
G06     40.7           45.8               11.1 +/-    0.84      14.7 +/-    0.84  0.080 / 0.120
G12     317.9          66.1               12.0 +/-    0.59      13.0 +/-    0.59  0.070 / 0.130
G17     82.8           12.5               12.3 +/-    1.41      32.4 +/-    1.41  0.030 / 0.030
G19     71.0           29.1               11.5 +/-    2.61      20.5 +/-    2.61  0.030 / 0.030
G24     235.0          27.5               16.7 +/-    1.28      30.9 +/-    1.28  0.130 / 0.150
G25     317.6          28.2               10.9 +/-    1.56      19.8 +/-    1.56  0.170 / 0.110