PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-15:28:00
G07     319.9          52.5               12.6 +/-    1.59      15.5 +/-    1.59  0.040 / 0.060
G08     116.7          48.2               13.8 +/-    0.53      17.8 +/-    0.53  0.040 / 0.060
G09     221.7          81.9               11.5 +/-    0.33      11.6 +/-    0.33  0.040 / 0.060
G16     44.4           12.8               10.0 +/-    1.76      26.1 +/-    1.76  0.050 / 0.060
G23     150.5          47.3               12.6 +/-    1.35      16.4 +/-    1.35  0.070 / 0.130
G27     64.6           35.4               11.3 +/-    0.30      17.8 +/-    0.30  0.080 / 0.130
G28     230.8          22.3               13.1 +/-    1.35      27.3 +/-    1.35  0.040 / 0.070
G30     295.0          29.6               12.0 +/-    2.04      21.2 +/-    2.04  0.030 / 0.060