PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-18:12:30
G02     35.6           53.7               15.7 +/-    1.71      19.0 +/-    1.71  0.030 / 0.050
G05     143.8          63.5               18.6 +/-    0.29      20.6 +/-    0.29  0.030 / 0.040
G06     55.9           13.8               12.2 +/-    3.36      31.2 +/-    3.36  0.030 / 0.040
G12     196.0          63.7               16.4 +/-    0.82      18.1 +/-    0.82  0.030 / 0.040
G20     198.6          30.6               18.8 +/-    1.55      32.6 +/-    1.55  0.180 / 0.170
G25     286.4          58.1               14.3 +/-    0.85      16.5 +/-    0.85  0.150 / 0.170
G29     311.7          33.9               13.9 +/-    1.78      22.6 +/-    1.78  0.030 / 0.030