PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/12-21:12:30
G10     296.2          51.0               10.2 +/-    1.57      12.6 +/-    1.57  0.040 / 0.050
G14     210.1          12.9               15.4 +/-    3.21      40.2 +/-    3.21  0.030 / 0.050
G15     46.1           28.2                9.0 +/-    0.79      16.4 +/-    0.79  0.060 / 0.100
G18     359.1          66.0                9.6 +/-    0.77      10.4 +/-    0.77  0.060 / 0.120
G20     71.2           18.4               10.3 +/-    0.76      23.5 +/-    0.76  0.070 / 0.150
G21     99.9           72.1               11.8 +/-    1.27      12.3 +/-    1.27  0.070 / 0.190
G24     99.3           26.5               12.5 +/-    0.92      23.6 +/-    0.92  0.080 / 0.130
G27     299.0          35.1               11.4 +/-    0.54      18.0 +/-    0.54  0.080 / 0.180
G32     211.4          28.9               14.1 +/-    2.35      25.3 +/-    2.35  0.060 / 0.060