PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-05:57:40
G03     232.9          65.3                5.5 +/-    0.82       6.0 +/-    0.82  0.040 / 0.060
G07     251.5          11.9                0.6 +/-   13.00       1.6 +/-   13.00  0.040 / 0.050
G09     307.0          24.1                4.5 +/-    1.02       9.0 +/-    1.02  0.100 / 0.250
G14     104.2          9.8                 5.1 +/-    2.47      14.2 +/-    2.47  0.170 / 0.240
G16     123.6          62.3                7.2 +/-    0.42       8.0 +/-    0.42  0.050 / 0.040
G22     192.5          51.0                5.5 +/-    0.62       6.8 +/-    0.62  0.050 / 0.050
G23     321.7          51.4                4.9 +/-    0.71       6.1 +/-    0.71  0.150 / 0.400
G26     65.6           51.8                5.7 +/-    0.86       7.0 +/-    0.86  0.210 / 0.380
G31     54.0           18.1                2.0 +/-    3.76       4.7 +/-    3.76  0.300 / 0.300