PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-14:42:40
G02     46.9           42.9                7.1 +/-    0.48       9.9 +/-    0.48  0.020 / 0.030
G05     103.4          70.9                8.7 +/-    0.55       9.2 +/-    0.55  0.020 / 0.030
G12     185.6          48.1               10.3 +/-    2.25      13.2 +/-    2.25  0.040 / 0.050
G25     266.3          58.2                7.6 +/-    0.67       8.7 +/-    0.67  0.040 / 0.040
G29     318.1          40.2                6.2 +/-    2.04       9.0 +/-    2.04  0.050 / 0.070