PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/08-03:42:50
G10     258.5          32.6                9.7 +/-    1.18      16.2 +/-    1.18  0.110 / 0.270
G13     46.7           24.5                6.9 +/-    2.40      13.6 +/-    2.40  0.110 / 0.310
G15     71.1           54.8                6.5 +/-    0.47       7.7 +/-    0.47  0.040 / 0.030
G16     286.0          14.5                8.8 +/-    1.72      22.3 +/-    1.72  0.030 / 0.040
G20     293.6          62.4                8.6 +/-    0.88       9.6 +/-    0.88  0.110 / 0.180
G21     344.8          65.9                8.9 +/-    0.53       9.7 +/-    0.53  0.100 / 0.260
G26     258.4          11.8                9.3 +/-   15.35      24.9 +/-   15.35  0.100 / 0.140
G27     321.5          12.3                3.3 +/-   14.44       8.8 +/-   14.44  0.090 / 0.140
G29     167.2          41.0                8.4 +/-    0.93      12.1 +/-    0.93  0.040 / 0.040