PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-05:43:10
G02     251.6          79.5                3.9 +/-    0.26       4.0 +/-    0.26  0.180 / 0.160
G05     170.2          18.5                4.0 +/-    1.69       9.2 +/-    1.69  0.100 / 0.170
G06     39.8           59.2                4.3 +/-    0.40       4.9 +/-    0.40  0.030 / 0.030
G12     321.2          52.4                3.5 +/-    0.62       4.3 +/-    0.62  0.030 / 0.030
G17     72.1           22.3                2.4 +/-    0.74       5.0 +/-    0.74  0.030 / 0.050
G19     59.5           37.1                3.4 +/-    0.99       5.3 +/-    0.99  0.040 / 0.050
G24     244.2          33.8                5.8 +/-    2.13       9.3 +/-    2.13  0.380 / 0.320
G25     317.0          13.3                2.6 +/-    3.08       6.8 +/-    3.08  0.160 / 0.160