PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-16:42:40
G02     277.8          80.5               12.6 +/-    0.46      12.8 +/-    0.46  0.090 / 0.130
G05     172.1          21.4               15.1 +/-    1.56      32.2 +/-    1.56  0.080 / 0.130
G06     40.0           49.9               11.6 +/-    0.97      14.6 +/-    0.97  0.030 / 0.040
G12     319.7          61.7               13.9 +/-    0.66      15.5 +/-    0.66  0.030 / 0.040
G17     80.2           14.4               10.7 +/-    1.68      27.0 +/-    1.68  0.090 / 0.230
G19     68.0           31.1               12.5 +/-    0.72      21.4 +/-    0.72  0.100 / 0.220
G24     237.8          29.5               12.9 +/-    1.53      22.8 +/-    1.53  0.050 / 0.170
G25     317.8          23.8               12.5 +/-    2.50      25.2 +/-    2.50  0.050 / 0.170