PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/14-14:27:10
G02     46.1           43.6                4.8 +/-    0.36       6.6 +/-    0.36  0.030 / 0.030
G05     108.2          70.8                7.4 +/-    0.65       7.8 +/-    0.65  0.030 / 0.020
G12     185.7          49.3                7.5 +/-    1.94       9.6 +/-    1.94  0.040 / 0.050
G25     268.8          58.2                7.6 +/-    0.48       8.8 +/-    0.48  0.040 / 0.040
G29     317.3          39.1                5.4 +/-    1.00       8.0 +/-    1.00  0.040 / 0.070