PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-14:42:10
G02     48.5           41.5                6.4 +/-    0.56       9.1 +/-    0.56  0.040 / 0.030
G05     97.1           71.0                6.6 +/-    0.48       7.0 +/-    0.48  0.030 / 0.030
G12     185.1          46.0                9.4 +/-    2.05      12.5 +/-    2.05  0.030 / 0.060
G25     262.4          58.0                7.7 +/-    0.66       8.9 +/-    0.66  0.040 / 0.040
G29     319.3          41.7                6.9 +/-    1.19       9.7 +/-    1.19  0.050 / 0.060