PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/23-18:27:50
G01     221.9          12.6                9.5 +/-    1.65      25.1 +/-    1.65  0.040 / 0.040
G03     257.7          71.5                9.2 +/-    0.88       9.7 +/-    0.88  0.030 / 0.040
G09     297.6          10.7              -12.3 +/-   21.09     -33.7 +/-   21.09  0.120 / 0.190
G14     91.7           21.6                9.8 +/-    1.14      20.8 +/-    1.14  0.130 / 0.220
G16     141.1          51.2               13.1 +/-    0.70      16.3 +/-    0.70  0.050 / 0.060
G22     200.7          64.0               10.3 +/-    0.75      11.3 +/-    0.75  0.030 / 0.040
G23     313.3          43.4                9.6 +/-    1.07      13.3 +/-    1.07  0.170 / 0.130
G26     84.1           54.1               10.1 +/-    1.07      12.1 +/-    1.07  0.080 / 0.100
G31     48.0           26.1                8.4 +/-    2.21      16.0 +/-    2.21  0.130 / 0.250