PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/26-20:13:00
G02     55.6           36.7               14.9 +/-    0.71      22.9 +/-    0.71  0.040 / 0.090
G05     72.3           69.0               16.1 +/-    0.53      17.1 +/-    0.53  0.050 / 0.110
G12     185.7          36.2               20.2 +/-    2.84      31.4 +/-    2.84  0.040 / 0.060
G13     132.7          12.5               18.6 +/-    1.82      49.2 +/-    1.82  0.050 / 0.060
G20     205.2          56.9               19.0 +/-    1.35      22.2 +/-    1.35  0.120 / 0.450
G21     268.2          15.5               18.3 +/-    2.44      44.9 +/-    2.44  0.110 / 0.450
G25     235.4          53.7               17.1 +/-    1.88      20.6 +/-    1.88  0.040 / 0.040
G29     328.0          53.8               14.3 +/-    0.71      17.3 +/-    0.71  0.030 / 0.040