PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/08-14:12:50
G02     36.6           52.7                9.5 +/-    1.43      11.5 +/-    1.43  0.030 / 0.020
G05     138.8          63.6               11.0 +/-    0.26      12.2 +/-    0.26  0.030 / 0.030
G06     54.4           16.9                5.4 +/-    2.77      12.7 +/-    2.77  0.030 / 0.030
G12     199.5          65.9                7.1 +/-    0.86       7.7 +/-    0.86  0.040 / 0.030
G20     199.3          27.8               10.9 +/-    2.51      20.0 +/-    2.51  0.170 / 0.190
G25     291.6          55.9                4.1 +/-    3.15       4.8 +/-    3.15  0.210 / 0.220
G29     312.2          35.1                4.3 +/-    0.77       6.9 +/-    0.77  0.050 / 0.050