PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/03-02:57:50
G01     228.5          19.3                6.2 +/-    1.43      13.8 +/-    1.43  0.110 / 0.200
G03     296.0          64.6                2.4 +/-    1.06       2.6 +/-    1.06  0.110 / 0.200
G09     293.8          10.8               -5.8 +/-   30.80     -15.8 +/-   30.80  0.040 / 0.040
G14     83.6           26.4                4.2 +/-    0.89       8.0 +/-    0.89  0.040 / 0.040
G16     147.4          42.6                6.4 +/-    1.06       8.9 +/-    1.06  0.190 / 0.250
G22     228.6          72.8                4.6 +/-    0.84       4.8 +/-    0.84  0.150 / 0.340
G23     304.4          34.1                5.3 +/-    0.74       8.6 +/-    0.74  0.030 / 0.040
G26     102.3          53.4                4.8 +/-    0.42       5.9 +/-    0.42  0.040 / 0.040
G31     44.2           34.9                2.6 +/-    1.42       4.2 +/-    1.42  0.050 / 0.050