PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-15:57:40
G02     31.5           56.0                6.7 +/-    1.11       7.9 +/-    1.11  0.060 / 0.040
G05     142.0          62.2                9.4 +/-    0.58      10.4 +/-    0.58  0.040 / 0.060
G06     54.1           14.1                5.7 +/-    3.19      14.5 +/-    3.19  0.030 / 0.040
G12     195.6          66.9                7.5 +/-    0.70       8.1 +/-    0.70  0.030 / 0.030
G25     296.5          53.2                7.7 +/-    3.38       9.4 +/-    3.38  0.090 / 0.240
G29     307.4          28.1                5.7 +/-    1.32      10.4 +/-    1.32  0.140 / 0.230