PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/03-13:42:30
G01     222.8          13.4                7.9 +/-   16.24      20.5 +/-   16.24  0.110 / 0.210
G03     266.1          70.9                7.7 +/-    0.61       8.1 +/-    0.61  0.110 / 0.200
G09     297.1          10.5              -13.5 +/-   22.69     -37.3 +/-   22.69  0.050 / 0.080
G14     89.5           24.6                7.6 +/-    1.61      15.1 +/-    1.61  0.060 / 0.070
G16     139.4          50.9                9.2 +/-    1.12      11.5 +/-    1.12  0.170 / 0.460
G22     195.4          62.9                8.2 +/-    0.77       9.1 +/-    0.77  0.200 / 0.390
G23     314.9          45.7                5.8 +/-    0.98       7.7 +/-    0.98  0.070 / 0.060
G26     84.2           53.6                6.9 +/-    0.75       8.4 +/-    0.75  0.050 / 0.050
G31     48.0           25.8                6.8 +/-    0.61      13.1 +/-    0.61  0.030 / 0.050