PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-19:27:30
G02     36.6           52.6               10.2 +/-    1.03      12.5 +/-    1.03  0.030 / 0.030
G05     126.9          66.7               11.9 +/-    0.45      12.8 +/-    0.45  0.030 / 0.030
G06     57.9           9.4                 8.7 +/-    1.98      24.4 +/-    1.98  0.050 / 0.040
G12     186.8          57.5               12.7 +/-    0.31      14.8 +/-    0.31  0.040 / 0.050
G25     285.4          57.3               13.5 +/-    3.16      15.7 +/-    3.16  0.030 / 0.040
G29     310.9          31.4                9.5 +/-    1.61      16.2 +/-    1.61  0.040 / 0.040