PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-01:12:00
G02     45.5           44.5                9.9 +/-    1.48      13.4 +/-    1.48  0.040 / 0.040
G05     99.7           68.9               11.0 +/-    0.69      11.7 +/-    0.69  0.040 / 0.040
G12     188.6          51.8               13.3 +/-    0.61      16.4 +/-    0.61  0.030 / 0.030
G25     272.3          58.1               13.8 +/-    1.00      16.0 +/-    1.00  0.040 / 0.030
G29     316.2          37.8               10.4 +/-    0.97      15.8 +/-    0.97  0.030 / 0.030