PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-00:57:10
G02     47.7           42.6               10.4 +/-    1.79      14.6 +/-    1.79  0.030 / 0.050
G05     90.8           68.7               11.4 +/-    0.68      12.2 +/-    0.68  0.030 / 0.050
G12     187.4          48.4               13.4 +/-    0.66      17.3 +/-    0.66  0.030 / 0.030
G25     266.1          58.1               11.7 +/-    1.23      13.5 +/-    1.23  0.030 / 0.030
G29     318.0          40.1               11.1 +/-    0.71      16.1 +/-    0.71  0.040 / 0.040