PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/01-21:58:30
G10     296.8          51.2               18.1 +/-    1.42      22.5 +/-    1.42  0.040 / 0.050
G14     210.2          13.4               24.6 +/-    1.78      63.6 +/-    1.78  0.040 / 0.040
G15     46.0           28.1               13.2 +/-    1.06      24.0 +/-    1.06  0.160 / 0.140
G18     359.4          66.0               17.1 +/-    0.98      18.5 +/-    0.98  0.100 / 0.130
G20     71.6           17.8               14.9 +/-    0.98      34.6 +/-    0.98  0.080 / 0.120
G21     100.4          72.2               19.0 +/-    0.56      19.9 +/-    0.56  0.080 / 0.150
G24     98.8           26.6               19.8 +/-    0.76      37.3 +/-    0.76  0.070 / 0.200
G27     298.5          35.2               18.4 +/-    0.68      29.0 +/-    0.68  0.070 / 0.200
G32     211.6          29.1               23.4 +/-    1.23      41.7 +/-    1.23  0.060 / 0.090