PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/19-14:12:00
G02     47.9           41.9                5.0 +/-    0.68       7.1 +/-    0.68  0.030 / 0.030
G05     102.0          71.2                7.0 +/-    0.56       7.4 +/-    0.56  0.030 / 0.030
G12     185.0          46.9                8.5 +/-    1.82      11.2 +/-    1.82  0.040 / 0.060
G25     264.5          58.1                6.3 +/-    0.78       7.3 +/-    0.78  0.040 / 0.060
G29     318.6          40.8                6.9 +/-    1.42      10.0 +/-    1.42  0.040 / 0.050