PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/16-14:13:10
G02     44.0           45.3                5.7 +/-    1.58       7.7 +/-    1.58  0.020 / 0.030
G05     117.2          70.1                8.3 +/-    0.51       8.7 +/-    0.51  0.020 / 0.030
G12     186.4          52.2                9.3 +/-    0.66      11.4 +/-    0.66  0.050 / 0.040
G25     274.3          58.1               11.9 +/-    0.41      13.8 +/-    0.41  0.040 / 0.050
G29     315.5          37.0                6.2 +/-    1.34       9.5 +/-    1.34  0.040 / 0.050