PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/24-23:42:30
G08     294.9          23.2               14.9 +/-    0.73      30.4 +/-    0.73  0.040 / 0.070
G10     358.8          62.8               13.1 +/-    0.53      14.5 +/-    0.53  0.040 / 0.080
G14     227.7          45.3               20.3 +/-    1.52      27.3 +/-    1.52  0.050 / 0.090
G18     59.4           52.8               14.6 +/-    0.80      17.8 +/-    0.80  0.060 / 0.090
G21     144.2          41.6               19.0 +/-    0.96      26.9 +/-    0.96  0.030 / 0.070
G24     60.2           27.8               12.4 +/-    1.06      22.8 +/-    1.06  0.030 / 0.050
G27     255.8          32.9               16.7 +/-    0.95      27.6 +/-    0.95  0.050 / 0.090
G32     239.2          62.0               17.3 +/-    0.68      19.4 +/-    0.68  0.060 / 0.090