PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/03-21:28:00
G05     46.7           25.8               17.0 +/-    1.31      32.6 +/-    1.31  0.110 / 0.250
G13     83.6           37.4               20.1 +/-    0.68      30.5 +/-    0.68  0.110 / 0.280
G15     131.7          48.9               23.8 +/-    1.38      30.4 +/-    1.38  0.040 / 0.080
G18     241.4          38.4               24.6 +/-    0.96      36.8 +/-    0.96  0.040 / 0.080
G20     24.6           70.1               20.9 +/-    0.52      22.1 +/-    0.52  0.090 / 0.480
G21     309.3          44.9               19.7 +/-    1.63      26.6 +/-    1.63  0.110 / 0.370
G25     198.7          12.2               31.7 +/-    2.98      84.4 +/-    2.98  0.070 / 0.140
G26     294.9          19.4               18.8 +/-    1.32      42.0 +/-    1.32  0.060 / 0.140
G29     149.6          73.5               22.8 +/-    0.62      23.7 +/-    0.62  0.050 / 0.110