PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/06-02:12:30
G02     41.3           48.3               13.3 +/-    0.41      17.2 +/-    0.41  0.040 / 0.050
G05     116.4          67.6               14.6 +/-    0.79      15.7 +/-    0.79  0.030 / 0.040
G12     191.9          58.7               15.4 +/-    1.69      17.7 +/-    1.69  0.040 / 0.050
G25     284.1          56.8               14.0 +/-    0.66      16.3 +/-    0.66  0.050 / 0.050
G29     312.6          33.5               12.5 +/-    1.05      20.4 +/-    1.05  0.060 / 0.060