PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/06-07:27:40
G02     44.2           45.4                3.0 +/-    1.44       4.1 +/-    1.44  0.130 / 0.280
G05     108.2          69.1                5.2 +/-    0.69       5.5 +/-    0.69  0.150 / 0.330
G06     59.2           10.8                2.7 +/-    1.93       7.5 +/-    1.93  0.040 / 0.040
G12     192.2          56.1                5.6 +/-    0.75       6.6 +/-    0.75  0.040 / 0.040
G25     268.0          60.1                3.3 +/-    0.63       3.7 +/-    0.63  0.030 / 0.020
G29     317.8          40.7                3.5 +/-    1.04       5.0 +/-    1.04  0.030 / 0.030