PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-18:57:30
G02     292.2          80.4               14.2 +/-    0.65      14.4 +/-    0.65  0.050 / 0.030
G05     170.2          25.3               16.3 +/-    2.04      31.7 +/-    2.04  0.050 / 0.030
G06     40.8           45.3               11.3 +/-    0.76      15.1 +/-    0.76  0.140 / 0.130
G12     317.4          66.6               12.5 +/-    0.36      13.5 +/-    0.36  0.100 / 0.120
G17     83.3           12.2               10.8 +/-    1.14      28.8 +/-    1.14  0.160 / 0.090
G19     71.6           28.8               11.4 +/-    1.74      20.5 +/-    1.74  0.150 / 0.120
G24     234.5          27.1               14.4 +/-    1.49      26.8 +/-    1.49  0.020 / 0.030
G25     317.6          28.6               11.1 +/-    1.27      20.1 +/-    1.27  0.030 / 0.030