PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-19:27:50
G03     199.7          45.8               12.6 +/-    1.26      16.8 +/-    1.26  0.050 / 0.120
G07     265.1          21.2               11.1 +/-    1.12      23.7 +/-    1.12  0.060 / 0.110
G09     314.6          35.7               10.6 +/-    1.27      16.6 +/-    1.27  0.030 / 0.060
G16     70.3           62.3               12.4 +/-    0.35      13.8 +/-    0.35  0.030 / 0.040
G22     183.8          30.1               13.4 +/-    1.05      23.4 +/-    1.05  0.120 / 0.250
G23     344.9          70.4               11.7 +/-    0.82      12.3 +/-    0.82  0.110 / 0.270
G26     46.7           34.3                8.5 +/-    0.48      13.7 +/-    0.48  0.100 / 0.280
G27     125.5          17.9               13.7 +/-    2.71      31.9 +/-    2.71  0.080 / 0.330