PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/12-07:42:20
G02     229.6          73.2                4.8 +/-    0.33       5.0 +/-    0.33  0.210 / 0.350
G05     173.6          11.8                0.3 +/-    8.46       0.7 +/-    8.46  0.350 / 0.440
G06     42.9           68.6                3.9 +/-    0.75       4.2 +/-    0.75  0.080 / 0.100
G12     320.8          44.9                3.7 +/-    0.55       5.0 +/-    0.55  0.080 / 0.090
G17     66.8           25.5                3.8 +/-    2.31       7.3 +/-    2.31  0.070 / 0.070
G19     52.6           41.3                2.7 +/-    1.15       3.9 +/-    1.15  0.060 / 0.070
G24     252.7          37.7                4.3 +/-    2.31       6.5 +/-    2.31  0.030 / 0.050