PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-16:57:30
G02     322.3          80.5               12.1 +/-    0.46      12.3 +/-    0.46  0.110 / 0.100
G05     169.7          27.8               15.0 +/-    3.68      27.5 +/-    3.68  0.120 / 0.120
G06     41.0           43.3               11.8 +/-    1.09      16.2 +/-    1.09  0.030 / 0.030
G12     314.6          68.6               11.9 +/-    0.73      12.7 +/-    0.73  0.030 / 0.040
G17     85.6           10.5               12.6 +/-    1.67      34.7 +/-    1.67  0.210 / 0.280
G19     74.3           27.0               10.9 +/-    1.96      20.3 +/-    1.96  0.280 / 0.380
G24     231.9          24.9               12.6 +/-    1.75      24.7 +/-    1.75  0.090 / 0.090
G25     317.3          30.0               12.7 +/-    1.61      22.3 +/-    1.61  0.060 / 0.120