PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/08-18:27:40
G02     30.8           56.6               10.8 +/-    0.55      12.6 +/-    0.55  0.040 / 0.070
G05     139.9          62.2               14.0 +/-    0.86      15.6 +/-    0.86  0.040 / 0.060
G06     53.7           14.9                7.9 +/-    2.12      19.7 +/-    2.12  0.030 / 0.030
G12     199.6          68.5               11.6 +/-    1.14      12.4 +/-    1.14  0.040 / 0.050
G25     297.5          52.8               13.3 +/-    1.06      16.2 +/-    1.06  0.130 / 0.330
G29     307.4          28.3               10.2 +/-    0.73      18.6 +/-    0.73  0.100 / 0.290