PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-23:27:50
G10     298.8          51.9               12.8 +/-    2.04      15.8 +/-    2.04  0.080 / 0.050
G14     210.5          14.9               18.0 +/-    3.22      44.8 +/-    3.22  0.070 / 0.050
G15     45.9           27.5               10.2 +/-    1.60      18.8 +/-    1.60  0.070 / 0.120
G18     1.2            65.8               12.4 +/-    0.78      13.4 +/-    0.78  0.060 / 0.130
G20     72.8           16.4               12.3 +/-    2.17      29.4 +/-    2.17  0.030 / 0.030
G21     103.0          72.0               13.8 +/-    1.15      14.4 +/-    1.15  0.030 / 0.030
G24     97.3           27.2               14.0 +/-    0.99      26.1 +/-    0.99  0.070 / 0.090
G27     296.9          35.8               13.6 +/-    1.05      21.3 +/-    1.05  0.070 / 0.070
G32     212.0          31.3               13.8 +/-    2.66      23.6 +/-    2.66  0.090 / 0.230