PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/27-21:58:00
G10     282.0          46.9               10.8 +/-    1.93      14.2 +/-    1.93  0.050 / 0.050
G15     50.1           39.4                9.7 +/-    0.91      14.3 +/-    0.91  0.050 / 0.040
G20     324.8          64.4                9.9 +/-    0.62      10.8 +/-    0.62  0.050 / 0.110
G21     41.1           77.0               10.9 +/-    0.60      11.1 +/-    0.60  0.040 / 0.070
G24     111.2          21.0               12.2 +/-    2.04      26.2 +/-    2.04  0.170 / 0.170
G27     312.0          27.4                8.6 +/-    1.35      15.8 +/-    1.35  0.150 / 0.140
G29     168.0          19.2               16.7 +/-    1.16      37.5 +/-    1.16  0.080 / 0.070
G32     206.2          20.1               18.3 +/-    3.24      40.2 +/-    3.24  0.070 / 0.070