PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/29-12:42:50
G02     35.5           53.7                4.5 +/-    1.34       5.4 +/-    1.34  0.030 / 0.020
G05     140.1          62.4                6.9 +/-    0.48       7.6 +/-    0.48  0.020 / 0.020
G06     53.0           19.3                2.7 +/-    2.77       6.1 +/-    2.77  0.190 / 0.180
G12     202.3          68.0                5.3 +/-    0.33       5.7 +/-    0.33  0.190 / 0.250
G20     199.4          25.3                4.8 +/-    2.20       9.4 +/-    2.20  0.030 / 0.030
G25     295.2          54.4                4.3 +/-    1.53       5.1 +/-    1.53  0.030 / 0.030
G29     310.3          32.8                2.9 +/-    0.96       4.8 +/-    0.96  0.050 / 0.040