PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-20:57:40
G03     226.6          65.9                9.1 +/-    0.92       9.9 +/-    0.92  0.050 / 0.050
G09     304.8          19.5                6.9 +/-    1.27      15.3 +/-    1.27  0.040 / 0.050
G14     102.0          13.1                8.9 +/-    1.73      23.1 +/-    1.73  0.260 / 0.150
G16     124.6          61.1               10.5 +/-    0.37      11.8 +/-    0.37  0.160 / 0.200
G22     192.6          52.1               10.6 +/-    0.62      13.0 +/-    0.62  0.030 / 0.040
G23     322.0          51.9                7.6 +/-    0.60       9.4 +/-    0.60  0.040 / 0.040
G26     65.1           50.4                7.8 +/-    1.09       9.8 +/-    1.09  0.110 / 0.320
G31     53.7           17.6                5.0 +/-    3.38      11.8 +/-    3.38  0.110 / 0.390