PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/12-15:43:10
G07     44.3           69.8               11.4 +/-    0.78      12.1 +/-    0.78  0.050 / 0.040
G08     53.0           42.4                9.5 +/-    0.63      13.3 +/-    0.63  0.030 / 0.050
G09     178.0          38.1               13.0 +/-    1.32      19.5 +/-    1.32  0.030 / 0.040
G11     121.2          33.8               12.3 +/-    0.71      19.9 +/-    0.71  0.030 / 0.040
G17     200.3          11.0               -0.9 +/-   31.37      -2.3 +/-   31.37  0.310 / 0.410
G18     106.1          15.4               11.1 +/-    0.58      27.3 +/-    0.58  0.330 / 0.460
G28     272.7          51.6               11.3 +/-    1.22      13.9 +/-    1.22  0.050 / 0.080
G30     330.4          58.6                9.4 +/-    0.73      10.8 +/-    0.73  0.060 / 0.070