PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-17:27:40
G02     35.7           53.2               12.6 +/-    1.11      15.3 +/-    1.11  0.030 / 0.030
G05     129.2          67.3               15.2 +/-    0.70      16.4 +/-    0.70  0.030 / 0.020
G12     187.3          56.6               15.4 +/-    0.72      18.1 +/-    0.72  0.020 / 0.040
G25     280.8          58.5               15.5 +/-    1.26      17.9 +/-    1.26  0.040 / 0.050
G29     312.1          32.9               10.8 +/-    1.04      17.8 +/-    1.04  0.040 / 0.040