PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/19-03:58:00
G01     227.7          18.5                5.8 +/-    2.23      13.2 +/-    2.23  0.030 / 0.040
G03     293.6          65.4                3.4 +/-    1.08       3.7 +/-    1.08  0.040 / 0.040
G09     294.3          10.8               -6.8 +/-   29.62     -18.7 +/-   29.62  0.130 / 0.350
G14     84.6           26.0                5.2 +/-    0.82      10.0 +/-    0.82  0.150 / 0.330
G16     146.1          43.9                8.3 +/-    0.70      11.4 +/-    0.70  0.110 / 0.200
G22     224.3          72.1                5.0 +/-    0.64       5.3 +/-    0.64  0.110 / 0.220
G23     305.4          35.2                4.2 +/-    0.88       6.6 +/-    0.88  0.060 / 0.100
G26     99.4           53.6                5.7 +/-    1.19       6.9 +/-    1.19  0.050 / 0.110
G31     44.8           33.3                2.2 +/-    0.43       3.6 +/-    0.43  0.040 / 0.090