PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-18:58:00
G02     57.2           35.1               22.8 +/-    0.99      36.1 +/-    0.99  0.050 / 0.080
G05     68.4           67.7               24.7 +/-    0.74      26.4 +/-    0.74  0.040 / 0.090
G12     185.9          35.3               29.6 +/-    2.64      46.7 +/-    2.64  0.040 / 0.060
G13     131.9          13.3               31.8 +/-    1.75      82.3 +/-    1.75  0.030 / 0.070
G15     165.5          9.8               -10.1 +/-   18.33     -28.4 +/-   18.33  0.030 / 0.040
G20     206.1          57.8               29.5 +/-    1.07      34.2 +/-    1.07  0.040 / 0.030
G21     269.4          16.8               25.2 +/-    2.84      60.1 +/-    2.84  0.050 / 0.110
G25     235.0          53.0               26.3 +/-    0.67      32.0 +/-    0.67  0.050 / 0.100
G29     329.6          55.8               24.0 +/-    0.85      28.3 +/-    0.85  0.150 / 0.540