PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-15:12:30
G07     336.5          59.2               12.6 +/-    0.76      14.4 +/-    0.76  0.030 / 0.050
G08     96.6           52.9               12.8 +/-    0.35      15.6 +/-    0.35  0.030 / 0.050
G09     187.0          70.3               12.9 +/-    1.16      13.7 +/-    1.16  0.050 / 0.050
G11     144.4          14.9               12.4 +/-    1.73      30.9 +/-    1.73  0.030 / 0.040
G23     155.3          35.4               12.3 +/-    1.16      19.3 +/-    1.16  0.050 / 0.100
G27     52.4           30.1               11.2 +/-    0.41      19.5 +/-    0.41  0.070 / 0.110
G28     239.7          31.8               15.8 +/-    1.57      26.7 +/-    1.57  0.050 / 0.090
G30     304.4          37.2               11.6 +/-    0.81      17.6 +/-    0.81  0.060 / 0.090