PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/18-19:58:10
G07     315.8          50.6               14.9 +/-    0.87      18.7 +/-    0.87  0.040 / 0.070
G08     123.6          45.9               18.6 +/-    0.80      24.8 +/-    0.80  0.050 / 0.050
G09     258.8          82.6               17.7 +/-    0.67      17.9 +/-    0.67  0.040 / 0.060
G16     43.4           17.0               11.7 +/-    2.96      27.6 +/-    2.96  0.050 / 0.060
G23     149.1          52.1               17.0 +/-    0.35      20.9 +/-    0.35  0.250 / 0.440
G27     68.0           36.0               14.4 +/-    0.75      22.5 +/-    0.75  0.190 / 0.310
G28     228.8          20.0               19.7 +/-    2.20      43.3 +/-    2.20  0.220 / 0.490
G30     293.6          29.6               13.8 +/-    2.14      24.3 +/-    2.14  0.120 / 0.340