PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-15:13:00
G02     32.3           55.4                7.1 +/-    0.88       8.5 +/-    0.88  0.040 / 0.040
G05     143.1          62.0               10.3 +/-    0.51      11.5 +/-    0.51  0.030 / 0.040
G06     54.1           14.0                4.3 +/-    1.28      11.0 +/-    1.28  0.040 / 0.040
G12     194.6          66.6                5.5 +/-    0.70       6.0 +/-    0.70  0.050 / 0.040
G25     296.5          53.2                7.5 +/-    0.91       9.1 +/-    0.91  0.090 / 0.150
G29     307.4          28.0                3.3 +/-    0.94       6.1 +/-    0.94  0.070 / 0.160