PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-19:42:40
G02     36.2           52.9                9.3 +/-    0.97      11.3 +/-    0.97  0.030 / 0.030
G05     128.1          66.3               10.5 +/-    0.59      11.3 +/-    0.59  0.030 / 0.030
G06     57.5           9.9                 8.7 +/-    1.13      24.3 +/-    1.13  0.050 / 0.050
G12     187.3          58.4               10.3 +/-    0.70      11.8 +/-    0.70  0.050 / 0.050
G25     286.6          57.0               14.0 +/-    2.13      16.4 +/-    2.13  0.030 / 0.040
G29     310.5          30.9                9.8 +/-    1.41      16.9 +/-    1.41  0.040 / 0.040