PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/14-14:28:00
G02     46.1           43.6                6.1 +/-    1.27       8.4 +/-    1.27  0.040 / 0.030
G05     108.2          70.8                6.7 +/-    0.55       7.1 +/-    0.55  0.030 / 0.030
G12     185.7          49.3                7.9 +/-    0.78      10.0 +/-    0.78  0.050 / 0.040
G25     268.8          58.2                8.1 +/-    2.68       9.3 +/-    2.68  0.050 / 0.040
G29     317.3          39.1                6.1 +/-    1.08       9.0 +/-    1.08  0.050 / 0.050