PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-18:27:30
G02     229.9          68.7               19.8 +/-    2.59      21.1 +/-    2.59  0.060 / 0.100
G05     176.3          10.1               -9.7 +/-   17.04     -27.0 +/-   17.04  0.050 / 0.100
G06     42.5           62.4              -33.8 +/-   13.31     -37.6 +/-   13.31  0.030 / 0.080
G12     321.7          48.9               11.0 +/-    1.81      14.0 +/-    1.81  0.030 / 0.060
G17     69.4           22.4               10.2 +/-    1.13      21.1 +/-    1.13  0.130 / 0.240
G19     55.1           39.4              -62.1 +/-   28.25     -91.2 +/-   28.25  0.110 / 0.330
G24     252.0          37.3               13.8 +/-    1.13      21.0 +/-    1.13  0.090 / 0.140
G25     316.2          13.4               11.2 +/-    2.53      29.0 +/-    2.53  0.070 / 0.170