PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-23:13:10
G10     297.7          51.5               10.2 +/-    2.42      12.6 +/-    2.42  0.100 / 0.060
G14     210.3          14.2               10.5 +/-    1.98      26.5 +/-    1.98  0.070 / 0.050
G15     46.0           28.1                9.0 +/-    1.54      16.5 +/-    1.54  0.090 / 0.120
G18     359.6          65.9               10.1 +/-    0.67      11.0 +/-    0.67  0.070 / 0.110
G20     72.2           17.0                9.7 +/-    0.86      23.0 +/-    0.86  0.060 / 0.090
G21     101.0          72.5               11.1 +/-    0.99      11.6 +/-    0.99  0.090 / 0.080
G24     98.1           26.9               12.4 +/-    1.05      23.2 +/-    1.05  0.110 / 0.480
G27     297.8          35.5               10.9 +/-    1.20      17.2 +/-    1.20  0.180 / 0.410
G32     211.7          30.4               11.1 +/-    3.26      19.3 +/-    3.26  0.080 / 0.190