PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/03-16:57:50
G02     37.1           51.6                9.4 +/-    1.31      11.6 +/-    1.31  0.040 / 0.040
G05     126.6          67.4               10.2 +/-    0.44      11.0 +/-    0.44  0.040 / 0.050
G12     191.1          59.7               10.7 +/-    0.76      12.2 +/-    0.76  0.030 / 0.030
G25     285.5          56.5                6.5 +/-    1.28       7.7 +/-    1.28  0.030 / 0.030
G29     312.2          33.3                6.5 +/-    1.70      10.7 +/-    1.70  0.050 / 0.050