PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-16:43:10
G02     201.6          19.7               13.9 +/-    2.62      30.9 +/-    2.62  0.020 / 0.050
G06     169.7          56.4               14.6 +/-    1.51      17.1 +/-    1.51  0.030 / 0.040
G13     227.4          11.9               13.0 +/-    2.66      34.7 +/-    2.66  0.080 / 0.160
G17     27.8           56.1               11.7 +/-    0.35      13.8 +/-    0.35  0.070 / 0.170
G19     337.4          70.5               13.1 +/-    0.50      13.8 +/-    0.50  0.150 / 0.260
G24     309.9          29.7               10.7 +/-    1.22      18.9 +/-    1.22  0.130 / 0.360
G28     90.7           38.3               11.0 +/-    0.74      16.5 +/-    0.74  0.130 / 0.710
G30     157.9          14.6               11.8 +/-    2.31      29.7 +/-    2.31  0.080 / 0.650