PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-00:57:20
G02     49.2           41.3               11.3 +/-    1.28      16.2 +/-    1.28  0.070 / 0.050
G05     85.3           68.3               12.8 +/-    0.75      13.7 +/-    0.75  0.030 / 0.050
G12     186.9          46.3               17.5 +/-    0.45      23.1 +/-    0.45  0.020 / 0.020
G25     262.2          57.9               14.3 +/-    1.06      16.6 +/-    1.06  0.030 / 0.030
G29     319.2          41.7               13.5 +/-    1.06      19.2 +/-    1.06  0.030 / 0.050