PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-01:12:00
G02     49.9           40.7               10.5 +/-    1.17      15.0 +/-    1.17  0.040 / 0.050
G05     82.9           68.0               10.8 +/-    0.62      11.6 +/-    0.62  0.040 / 0.050
G12     186.8          45.5               13.7 +/-    0.55      18.3 +/-    0.55  0.030 / 0.030
G25     260.6          57.7               12.2 +/-    1.96      14.1 +/-    1.96  0.030 / 0.020
G29     319.7          42.4               13.0 +/-    0.64      18.1 +/-    0.64  0.040 / 0.040