PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/06-02:27:50
G02     46.7           43.3               13.7 +/-    0.44      18.9 +/-    0.44  0.040 / 0.060
G05     95.8           68.8               14.5 +/-    0.74      15.5 +/-    0.74  0.050 / 0.060
G12     188.9          51.1               15.8 +/-    1.07      19.7 +/-    1.07  0.030 / 0.040
G25     270.4          58.1               14.7 +/-    0.49      17.0 +/-    0.49  0.030 / 0.050
G29     317.0          38.9               13.6 +/-    0.66      20.1 +/-    0.66  0.050 / 0.060