PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-19:13:00
G10     264.9          37.2               14.4 +/-    1.87      22.0 +/-    1.87  0.260 / 0.270
G13     42.8           19.5               12.0 +/-    1.76      26.6 +/-    1.76  0.280 / 0.220
G15     65.0           53.7               12.6 +/-    0.78      15.2 +/-    0.78  0.040 / 0.040
G16     280.8          12.8               12.2 +/-    1.83      32.0 +/-    1.83  0.050 / 0.050
G20     293.8          59.4               13.3 +/-    0.88      15.1 +/-    0.88  0.270 / 0.420
G21     0.3            70.9               14.0 +/-    0.52      14.8 +/-    0.52  0.190 / 0.580
G24     119.1          13.4               13.1 +/-    1.77      33.8 +/-    1.77  0.230 / 0.310
G27     320.1          16.0               14.0 +/-    2.16      34.0 +/-    2.16  0.130 / 0.390
G29     167.5          33.4               12.8 +/-    1.39      20.9 +/-    1.39  0.040 / 0.040