PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/08-14:58:00
G07     55.0           67.7                9.1 +/-    0.38       9.7 +/-    0.38  0.040 / 0.030
G08     54.6           43.5                8.6 +/-    0.50      11.9 +/-    0.50  0.040 / 0.040
G09     179.4          41.8               13.0 +/-    1.35      18.4 +/-    1.35  0.050 / 0.090
G11     121.8          33.8               10.4 +/-    1.35      16.8 +/-    1.35  0.050 / 0.100
G17     199.5          9.9                -8.8 +/-   12.09     -24.6 +/-   12.09  0.050 / 0.140
G18     105.9          14.7               10.1 +/-    2.87      25.2 +/-    2.87  0.050 / 0.110
G27     38.1           11.4                7.6 +/-    1.44      20.7 +/-    1.44  0.130 / 0.280
G28     265.1          46.2               10.2 +/-    1.24      13.5 +/-    1.24  0.190 / 0.310
G30     333.0          60.4                8.9 +/-    0.62      10.1 +/-    0.62  0.100 / 0.000