PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/11-10:57:50
G02     34.2           54.3                6.5 +/-    0.59       7.8 +/-    0.59  0.130 / 0.320
G05     140.1          63.0               10.9 +/-    0.99      12.1 +/-    0.99  0.120 / 0.310
G06     54.1           15.8                3.4 +/-    1.45       8.2 +/-    1.45  0.030 / 0.040
G12     197.8          66.6                7.8 +/-    0.54       8.4 +/-    0.54  0.040 / 0.040
G19     100.5          10.4                5.4 +/-    1.46      14.9 +/-    1.46  0.040 / 0.050
G25     286.1          59.4                6.2 +/-    0.79       7.1 +/-    0.79  0.040 / 0.050
G29     309.2          30.4                4.7 +/-    1.24       8.2 +/-    1.24  0.040 / 0.040