PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-15:12:20
G02     34.1           53.9                7.6 +/-    0.86       9.1 +/-    0.86  0.030 / 0.040
G05     140.0          63.6               10.0 +/-    0.79      11.0 +/-    0.79  0.030 / 0.030
G06     55.1           12.7                5.3 +/-    1.26      13.8 +/-    1.26  0.040 / 0.050
G12     192.9          64.5                6.3 +/-    0.94       6.9 +/-    0.94  0.040 / 0.050
G25     293.7          54.3                7.0 +/-    0.76       8.4 +/-    0.76  0.040 / 0.060
G29     308.6          29.3                5.0 +/-    2.70       8.8 +/-    2.70  0.050 / 0.050