PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/30-02:13:10
G01     225.7          18.3                6.0 +/-    1.30      13.8 +/-    1.30  0.250 / 0.560
G03     294.5          65.7                4.8 +/-    0.53       5.2 +/-    0.53  0.250 / 0.270
G14     82.8           28.0                4.3 +/-    1.11       7.8 +/-    1.11  0.080 / 0.140
G16     145.9          43.1                6.3 +/-    0.99       8.7 +/-    0.99  0.080 / 0.150
G22     228.5          72.1                5.2 +/-    0.71       5.4 +/-    0.71  0.040 / 0.080
G23     306.5          37.1                5.8 +/-    1.26       8.8 +/-    1.26  0.060 / 0.080
G26     100.5          53.5                3.8 +/-    1.32       4.5 +/-    1.32  0.040 / 0.030
G31     45.1           32.6                3.3 +/-    1.10       5.5 +/-    1.10  0.040 / 0.030