PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-20:13:50
G01     227.2          17.8               11.1 +/-    1.72      25.8 +/-    1.72  0.030 / 0.040
G03     286.4          68.5                8.2 +/-    0.42       8.7 +/-    0.42  0.030 / 0.040
G14     85.5           25.5                9.2 +/-    1.76      17.9 +/-    1.76  0.050 / 0.080
G16     149.8          43.3               10.8 +/-    1.53      15.0 +/-    1.53  0.080 / 0.070
G22     217.5          71.4                9.6 +/-    0.37      10.0 +/-    0.37  0.050 / 0.070
G23     306.8          37.0                8.5 +/-    1.06      13.0 +/-    1.06  0.040 / 0.080
G26     99.9           54.1                9.2 +/-    0.68      11.0 +/-    0.68  0.100 / 0.180
G31     44.7           33.3                5.7 +/-    0.99       9.3 +/-    0.99  0.090 / 0.200