PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/08-20:42:40
G07     317.6          51.4               10.7 +/-    0.96      13.3 +/-    0.96  0.270 / 0.330
G08     121.0          46.9               13.5 +/-    1.08      17.7 +/-    1.08  0.290 / 0.410
G09     247.0          82.5               12.0 +/-    1.28      12.1 +/-    1.28  0.050 / 0.070
G16     43.7           16.1                8.4 +/-    2.74      20.4 +/-    2.74  0.150 / 0.110
G23     150.0          51.1               11.1 +/-    0.55      13.9 +/-    0.55  0.040 / 0.050
G27     66.2           35.6               10.2 +/-    1.41      15.9 +/-    1.41  0.100 / 0.100
G28     229.7          21.2               12.6 +/-    2.48      26.9 +/-    2.48  0.220 / 0.340
G30     295.0          30.8               10.9 +/-    1.73      18.7 +/-    1.73  0.350 / 0.420