PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/19-17:42:20
G02     30.2           57.0                9.9 +/-    0.50      11.5 +/-    0.50  0.160 / 0.340
G05     140.7          62.0               11.9 +/-    0.98      13.3 +/-    0.98  0.110 / 0.280
G06     53.7           14.7                7.2 +/-    1.62      18.1 +/-    1.62  0.030 / 0.050
G12     198.6          68.3               10.4 +/-    1.48      11.1 +/-    1.48  0.040 / 0.060
G25     297.5          52.7               10.4 +/-    1.39      12.7 +/-    1.39  0.030 / 0.050
G29     307.2          28.1                8.8 +/-    1.10      16.0 +/-    1.10  0.030 / 0.050