PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-16:58:10
G02     324.9          80.3               12.9 +/-    0.62      13.0 +/-    0.62  0.070 / 0.170
G05     169.5          28.2               13.8 +/-    1.80      25.2 +/-    1.80  0.090 / 0.180
G06     41.1           42.9               11.3 +/-    0.78      15.8 +/-    0.78  0.030 / 0.040
G12     314.0          69.1               11.3 +/-    1.12      12.0 +/-    1.12  0.020 / 0.040
G17     86.0           10.2               11.8 +/-    2.03      32.8 +/-    2.03  0.090 / 0.120
G19     74.7           26.8               11.7 +/-    1.14      21.9 +/-    1.14  0.070 / 0.140
G24     231.6          24.6               13.8 +/-    0.80      27.1 +/-    0.80  0.070 / 0.300
G25     317.3          30.4               14.0 +/-    3.27      24.3 +/-    3.27  0.060 / 0.310