PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-23:13:00
G10     297.0          51.3               12.2 +/-    1.81      15.2 +/-    1.81  0.080 / 0.140
G14     210.2          13.8               11.9 +/-    2.12      30.4 +/-    2.12  0.070 / 0.170
G15     46.1           28.5                9.0 +/-    1.05      16.3 +/-    1.05  0.070 / 0.120
G18     358.6          66.0               10.0 +/-    1.17      10.8 +/-    1.17  0.070 / 0.110
G20     71.9           17.3                9.1 +/-    1.08      21.4 +/-    1.08  0.040 / 0.040
G21     99.7           72.7               11.3 +/-    0.74      11.8 +/-    0.74  0.040 / 0.050
G24     98.6           26.7               14.4 +/-    0.69      27.1 +/-    0.69  0.080 / 0.070
G27     298.3          35.3               12.2 +/-    1.10      19.2 +/-    1.10  0.050 / 0.080
G32     211.5          30.0               12.3 +/-    1.81      21.5 +/-    1.81  0.080 / 0.240