PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-19:43:00
G10     282.8          46.4               13.0 +/-    1.60      17.2 +/-    1.60  0.070 / 0.110
G15     50.6           41.5               11.0 +/-    0.37      15.7 +/-    0.37  0.070 / 0.110
G20     326.3          64.6               11.4 +/-    0.56      12.5 +/-    0.56  0.040 / 0.040
G21     54.1           76.9               11.6 +/-    0.68      11.9 +/-    0.68  0.040 / 0.040
G24     105.3          21.7               13.6 +/-    1.09      28.7 +/-    1.09  0.110 / 0.180
G27     311.5          27.3                9.8 +/-    0.94      18.2 +/-    0.94  0.090 / 0.190
G29     168.5          17.8               13.5 +/-    1.55      31.4 +/-    1.55  0.030 / 0.060
G32     206.7          22.1               14.5 +/-    1.83      30.3 +/-    1.83  0.030 / 0.060