PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/01-00:27:00
G02     40.7           48.8               12.8 +/-    0.30      16.3 +/-    0.30  0.030 / 0.040
G05     116.9          67.7               15.4 +/-    0.93      16.5 +/-    0.93  0.030 / 0.040
G12     190.4          57.7               15.8 +/-    1.44      18.3 +/-    1.44  0.020 / 0.050
G25     283.3          57.1               13.9 +/-    0.96      16.2 +/-    0.96  0.030 / 0.050
G29     312.5          33.3               13.5 +/-    1.09      22.2 +/-    1.09  0.050 / 0.060