PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-22:12:50
G10     264.1          35.7               12.8 +/-    1.57      20.0 +/-    1.57  0.120 / 0.090
G13     44.0           21.9                9.4 +/-    2.19      19.8 +/-    2.19  0.070 / 0.070
G15     62.7           51.0               11.2 +/-    1.08      13.9 +/-    1.08  0.230 / 0.320
G16     284.8          12.0               12.3 +/-    2.29      32.9 +/-    2.29  0.210 / 0.340
G18     295.1          63.4               10.9 +/-    1.08      12.1 +/-    1.08  0.110 / 0.160
G20     53.0           36.3               10.2 +/-    1.21      15.8 +/-    1.21  0.100 / 0.120
G21     359.9          70.9               11.7 +/-    0.59      12.3 +/-    0.59  0.080 / 0.090
G24     123.6          12.3               14.8 +/-    2.03      39.3 +/-    2.03  0.070 / 0.110
G27     318.9          18.3               11.3 +/-    2.15      25.9 +/-    2.15  0.050 / 0.090
G29     166.1          30.2               12.3 +/-    1.74      21.4 +/-    1.74  0.060 / 0.090