PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-16:13:10
G07     40.3           69.8               14.1 +/-    0.75      14.9 +/-    0.75  0.030 / 0.060
G08     54.4           43.7               12.5 +/-    0.66      17.2 +/-    0.66  0.040 / 0.040
G09     178.3          39.6               14.9 +/-    1.08      21.9 +/-    1.08  0.030 / 0.040
G11     122.7          33.0               14.5 +/-    1.05      24.0 +/-    1.05  0.030 / 0.040
G18     107.3          14.8               13.7 +/-    2.40      34.2 +/-    2.40  0.040 / 0.050
G28     270.9          51.0               14.2 +/-    1.09      17.7 +/-    1.09  0.030 / 0.050
G30     329.3          57.8               13.1 +/-    0.58      15.2 +/-    0.58  0.050 / 0.080