PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-02:13:10
G02     46.1           44.0               10.9 +/-    1.48      14.9 +/-    1.48  0.040 / 0.040
G05     98.3           68.8               10.7 +/-    0.94      11.4 +/-    0.94  0.040 / 0.040
G12     189.1          51.9               12.0 +/-    0.96      14.8 +/-    0.96  0.020 / 0.030
G25     272.0          58.0               10.0 +/-    1.63      11.5 +/-    1.63  0.030 / 0.030
G29     316.5          38.2               10.5 +/-    0.75      15.7 +/-    0.75  0.050 / 0.040