PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-20:13:10
G03     209.6          57.1                9.4 +/-    0.65      10.9 +/-    0.65  0.040 / 0.070
G07     256.7          14.8                8.2 +/-    1.99      20.4 +/-    1.99  0.050 / 0.070
G09     309.9          26.8                8.7 +/-    1.37      16.4 +/-    1.37  0.230 / 0.320
G16     99.0           65.1               10.1 +/-    1.20      11.1 +/-    1.20  0.100 / 0.320
G22     187.7          41.5                9.2 +/-    0.68      13.0 +/-    0.68  0.200 / 0.280
G23     331.1          60.5                8.4 +/-    0.56       9.5 +/-    0.56  0.200 / 0.390
G26     53.8           43.5                8.2 +/-    0.90      11.3 +/-    0.90  0.040 / 0.040
G27     133.5          10.8                2.2 +/-   35.18       6.0 +/-   35.18  0.030 / 0.030
G31     59.2           10.3                7.7 +/-    1.65      21.5 +/-    1.65  0.030 / 0.040