PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/08-14:13:10
G02     37.0           52.4                7.9 +/-    0.57       9.6 +/-    0.57  0.040 / 0.030
G05     138.0          64.0               11.6 +/-    0.61      12.7 +/-    0.61  0.030 / 0.040
G06     54.6           16.6                5.4 +/-    1.75      13.0 +/-    1.75  0.080 / 0.170
G12     199.0          65.4                6.9 +/-    1.49       7.5 +/-    1.49  0.090 / 0.160
G20     199.3          28.2               10.9 +/-    1.35      19.8 +/-    1.35  0.030 / 0.050
G25     290.8          56.1                6.7 +/-    1.13       7.9 +/-    1.13  0.030 / 0.030
G29     312.6          35.5                4.6 +/-    1.99       7.2 +/-    1.99  0.040 / 0.050