PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-14:28:10
G02     251.2          75.7                7.4 +/-    0.38       7.6 +/-    0.38  0.100 / 0.110
G05     172.5          18.1                8.3 +/-    1.45      19.2 +/-    1.45  0.080 / 0.110
G06     40.0           52.8                7.0 +/-    0.52       8.6 +/-    0.52  0.230 / 0.220
G12     321.8          59.6                6.9 +/-    1.23       7.9 +/-    1.23  0.170 / 0.190
G17     75.5           18.1                6.8 +/-    1.80      15.7 +/-    1.80  0.030 / 0.030
G19     58.3           39.4                7.5 +/-    1.40      11.0 +/-    1.40  0.030 / 0.040
G24     237.3          31.6                6.6 +/-    1.42      11.2 +/-    1.42  0.170 / 0.180
G25     317.2          18.6                4.6 +/-    3.33      10.5 +/-    3.33  0.180 / 0.170