PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-01:12:50
G02     44.6           44.9               10.6 +/-    1.26      14.4 +/-    1.26  0.030 / 0.030
G05     102.6          68.9               10.8 +/-    0.88      11.4 +/-    0.88  0.030 / 0.040
G12     192.3          55.7               12.1 +/-    0.37      14.3 +/-    0.37  0.030 / 0.040
G25     272.4          58.6               16.2 +/-    2.12      18.6 +/-    2.12  0.030 / 0.050
G29     318.2          41.0               11.3 +/-    0.62      16.2 +/-    0.62  0.030 / 0.030