PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-21:27:30
G02     54.8           37.2                9.2 +/-    1.52      14.0 +/-    1.52  0.030 / 0.030
G05     66.3           64.9               10.0 +/-    0.66      10.9 +/-    0.66  0.030 / 0.030
G12     183.0          35.1               14.4 +/-    0.76      22.8 +/-    0.76  0.180 / 0.300
G13     131.6          12.0               15.4 +/-    2.72      41.0 +/-    2.72  0.150 / 0.400
G21     267.2          13.5               14.7 +/-    2.78      38.0 +/-    2.78  0.060 / 0.100
G25     243.7          54.9               11.7 +/-    0.79      13.9 +/-    0.79  0.050 / 0.090
G29     324.4          48.8               10.2 +/-    1.04      13.0 +/-    1.04  0.040 / 0.040