PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-23:27:50
G08     305.2          21.0               12.3 +/-    1.52      26.5 +/-    1.52  0.030 / 0.020
G10     336.8          60.6               10.0 +/-    0.62      11.3 +/-    0.62  0.040 / 0.030
G14     220.2          35.6               17.1 +/-    2.55      26.8 +/-    2.55  0.050 / 0.050
G18     44.0           57.9               12.0 +/-    0.65      13.9 +/-    0.65  0.040 / 0.060
G21     137.0          52.1               14.1 +/-    0.65      17.4 +/-    0.65  0.080 / 0.080
G24     71.6           30.4               12.9 +/-    1.22      22.4 +/-    1.22  0.070 / 0.070
G27     268.5          36.9               13.1 +/-    2.13      20.1 +/-    2.13  0.060 / 0.090
G32     226.6          52.5               15.3 +/-    2.82      18.7 +/-    2.82  0.080 / 0.060