PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/16-15:58:00
G01     245.5          32.2                8.2 +/-    1.25      13.8 +/-    1.25  0.060 / 0.110
G03     313.7          53.9               14.0 +/-    0.68      16.9 +/-    0.68  0.050 / 0.080
G14     64.1           39.6                7.4 +/-    1.14      10.8 +/-    1.14  0.030 / 0.040
G16     160.2          23.5               13.3 +/-    2.00      26.9 +/-    2.00  0.030 / 0.030
G22     291.1          73.4                7.9 +/-    0.86       8.2 +/-    0.86  0.080 / 0.170
G23     291.8          24.8                7.7 +/-    2.10      15.1 +/-    2.10  0.080 / 0.140
G31     40.6           51.6                8.2 +/-    0.35      10.1 +/-    0.35  0.090 / 0.120
G32     82.3           18.6                8.4 +/-    2.34      19.0 +/-    2.34  0.080 / 0.090