PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-03:13:00
G01     227.6          18.4                7.6 +/-    2.55      17.4 +/-    2.55  0.040 / 0.040
G03     293.5          65.5                2.6 +/-    1.14       2.8 +/-    1.14  0.040 / 0.040
G09     294.6          11.4                2.6 +/-   11.67       7.1 +/-   11.67  0.110 / 0.180
G14     84.7           25.7                4.7 +/-    0.82       9.1 +/-    0.82  0.120 / 0.180
G16     146.3          43.8                8.1 +/-    1.28      11.1 +/-    1.28  0.140 / 0.330
G22     224.7          72.1                5.1 +/-    0.57       5.3 +/-    0.57  0.160 / 0.430
G23     305.3          35.0                5.3 +/-    0.85       8.4 +/-    0.85  0.060 / 0.100
G26     99.9           53.7                4.9 +/-    0.75       5.9 +/-    0.75  0.080 / 0.110
G31     44.7           33.7                1.7 +/-    0.67       2.7 +/-    0.67  0.040 / 0.080