PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/24-17:57:10
G02     44.5           45.5                7.5 +/-    0.74      10.0 +/-    0.74  0.050 / 0.080
G05     99.0           70.0                9.8 +/-    0.80      10.4 +/-    0.80  0.060 / 0.080
G12     187.9          50.4               10.2 +/-    1.35      12.9 +/-    1.35  0.040 / 0.060
G25     268.1          58.1                9.4 +/-    0.56      10.9 +/-    0.56  0.040 / 0.050
G29     318.1          40.3                9.2 +/-    2.09      13.3 +/-    2.09  0.030 / 0.040