PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/02-17:57:30
G02     35.8           53.3                8.7 +/-    1.21      10.6 +/-    1.21  0.030 / 0.030
G05     128.3          66.6                9.7 +/-    0.57      10.5 +/-    0.57  0.030 / 0.030
G06     58.0           9.2                 8.0 +/-    1.30      22.7 +/-    1.30  0.040 / 0.040
G12     185.5          56.8               10.7 +/-    1.17      12.5 +/-    1.17  0.040 / 0.040
G25     284.8          57.6                8.6 +/-    3.26      10.0 +/-    3.26  0.050 / 0.040
G29     310.8          31.3                8.4 +/-    1.85      14.3 +/-    1.85  0.040 / 0.040