PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/06-20:42:50
G10     264.0          37.8               10.8 +/-    2.24      16.2 +/-    2.24  0.160 / 0.590
G13     43.0           19.6                8.9 +/-    2.46      19.7 +/-    2.46  0.160 / 0.430
G15     63.7           52.0                8.6 +/-    0.71      10.6 +/-    0.71  0.040 / 0.030
G16     281.7          13.6                9.1 +/-    2.21      23.5 +/-    2.21  0.050 / 0.050
G20     293.1          59.3                9.4 +/-    0.89      10.7 +/-    0.89  0.160 / 0.230
G21     354.2          69.1               10.7 +/-    0.69      11.4 +/-    0.69  0.110 / 0.360
G24     124.5          12.2               11.9 +/-    2.47      31.7 +/-    2.47  0.170 / 0.210
G27     320.2          15.9                8.9 +/-    1.68      21.7 +/-    1.68  0.190 / 0.270
G29     166.8          35.2               10.4 +/-    1.53      16.5 +/-    1.53  0.030 / 0.040