PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/09-17:28:10
G02     34.3           54.3                7.4 +/-    1.18       8.9 +/-    1.18  0.030 / 0.030
G05     132.4          66.4                9.4 +/-    0.40      10.1 +/-    0.40  0.040 / 0.030
G06     57.6           10.2                7.4 +/-    1.68      20.4 +/-    1.68  0.030 / 0.040
G12     187.8          58.2               10.9 +/-    0.46      12.6 +/-    0.46  0.020 / 0.040
G19     103.4          9.6                 9.4 +/-    1.91      26.4 +/-    1.91  0.040 / 0.040
G25     283.6          58.1               12.3 +/-    0.67      14.2 +/-    0.67  0.040 / 0.040
G29     311.2          31.8                8.3 +/-    1.77      14.0 +/-    1.77  0.160 / 0.320