PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/26-21:13:10
G03     209.6          56.3                8.7 +/-    0.74      10.3 +/-    0.74  0.050 / 0.060
G07     257.7          15.6                9.1 +/-    3.50      22.2 +/-    3.50  0.040 / 0.070
G09     310.5          27.9                7.5 +/-    0.77      13.8 +/-    0.77  0.220 / 0.410
G16     97.1           65.4                9.0 +/-    0.85       9.8 +/-    0.85  0.210 / 0.250
G22     187.7          40.7               10.2 +/-    0.62      14.6 +/-    0.62  0.070 / 0.190
G23     331.6          61.1                7.6 +/-    0.54       8.5 +/-    0.54  0.070 / 0.190
G26     53.0           43.0                6.8 +/-    0.96       9.4 +/-    0.96  0.040 / 0.030
G27     132.5          11.6               11.4 +/-    2.12      30.8 +/-    2.12  0.050 / 0.040
G31     59.8           9.9                 6.8 +/-    2.16      18.9 +/-    2.16  0.110 / 0.320