PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-17:12:30
G02     328.4          80.0               14.3 +/-    0.39      14.5 +/-    0.39  0.080 / 0.130
G05     169.4          28.8               15.4 +/-    0.75      27.6 +/-    0.75  0.080 / 0.100
G06     41.3           42.1               11.7 +/-    0.83      16.5 +/-    0.83  0.080 / 0.130
G12     313.0          70.0               11.8 +/-    0.48      12.5 +/-    0.48  0.120 / 0.110
G17     86.6           9.7                13.3 +/-    2.19      37.3 +/-    2.19  0.220 / 0.380
G19     75.4           26.3               11.9 +/-    1.48      22.6 +/-    1.48  0.160 / 0.300
G24     230.9          24.1               14.1 +/-    2.56      28.1 +/-    2.56  0.030 / 0.030
G25     317.1          31.2               13.0 +/-    1.26      22.2 +/-    1.26  0.030 / 0.030