PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-07:43:00
G02     34.1           54.9                2.8 +/-    0.93       3.3 +/-    0.93  0.030 / 0.030
G05     139.6          61.1                6.7 +/-    0.54       7.5 +/-    0.54  0.030 / 0.030
G06     52.2           19.6                1.8 +/-    3.08       4.0 +/-    3.08  0.150 / 0.270
G12     206.1          70.5                4.8 +/-    0.46       5.1 +/-    0.46  0.130 / 0.350
G19     99.0           10.4                7.2 +/-    2.79      20.0 +/-    2.79  0.030 / 0.020
G20     200.4          20.3                4.7 +/-    1.87      10.3 +/-    1.87  0.030 / 0.030
G25     300.0          51.8                3.8 +/-    1.58       4.7 +/-    1.58  0.170 / 0.210
G29     307.0          28.2                1.0 +/-    1.08       1.8 +/-    1.08  0.230 / 0.220