PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/10-07:43:10
G02     36.1           53.1                3.5 +/-    0.76       4.2 +/-    0.76  0.110 / 0.250
G05     135.5          63.0                5.7 +/-    0.44       6.3 +/-    0.44  0.100 / 0.190
G06     53.4           17.8                1.5 +/-    0.75       3.5 +/-    0.75  0.030 / 0.040
G12     202.3          68.2                3.4 +/-    0.53       3.6 +/-    0.53  0.030 / 0.040
G20     200.7          22.4                4.8 +/-    3.09      10.0 +/-    3.09  0.020 / 0.040
G25     296.8          53.2                4.8 +/-    0.86       5.8 +/-    0.86  0.030 / 0.040
G29     308.6          29.8                2.6 +/-    1.32       4.6 +/-    1.32  0.040 / 0.050