PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/12-01:13:10
G08     276.7          21.9               10.0 +/-    1.61      21.0 +/-    1.61  0.060 / 0.160
G10     37.0           62.3               10.1 +/-    0.70      11.2 +/-    0.70  0.060 / 0.140
G11     316.7          11.2               -0.8 +/-   20.75      -2.0 +/-   20.75  0.080 / 0.200
G14     247.7          60.2               13.0 +/-    0.83      14.8 +/-    0.83  0.070 / 0.220
G18     80.1           43.5               10.8 +/-    0.37      14.9 +/-    0.37  0.030 / 0.030
G21     151.5          25.0               12.9 +/-    1.53      25.3 +/-    1.53  0.020 / 0.030
G24     46.0           19.0               10.0 +/-    0.75      22.5 +/-    0.75  0.040 / 0.070
G27     239.1          22.8               10.9 +/-    1.52      22.4 +/-    1.52  0.040 / 0.060
G31     181.7          17.9               14.8 +/-    0.74      34.3 +/-    0.74  0.090 / 0.180
G32     283.3          74.1               11.1 +/-    1.04      11.5 +/-    1.04  0.140 / 0.240