PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-22:56:50
G01     318.0          20.7                9.5 +/-    1.97      20.5 +/-    1.97  0.210 / 0.290
G08     252.8          11.5               13.4 +/-   15.91      36.3 +/-   15.91  0.240 / 0.360
G10     85.0           50.9               11.2 +/-    1.25      13.9 +/-    1.25  0.050 / 0.040
G11     299.0          25.1               10.5 +/-    1.41      20.5 +/-    1.41  0.050 / 0.040
G14     306.9          71.1               11.0 +/-    0.41      11.5 +/-    0.41  0.210 / 0.290
G18     300.1          44.0               11.3 +/-    4.98      15.4 +/-    4.98  0.180 / 0.240
G20     108.1          26.7               12.2 +/-    1.27      22.9 +/-    1.27  0.150 / 0.330
G22     302.3          11.9                8.0 +/-    8.53      21.4 +/-    8.53  0.280 / 0.230
G31     175.6          45.3               14.3 +/-    1.39      19.1 +/-    1.39  0.080 / 0.180
G32     14.8           64.7               10.3 +/-    0.57      11.3 +/-    0.57  0.090 / 0.180