PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-01:12:50
G02     51.7           39.2                8.9 +/-    0.42      13.2 +/-    0.42  0.040 / 0.060
G05     76.8           67.1               11.4 +/-    0.35      12.3 +/-    0.35  0.040 / 0.080
G12     186.2          43.0               14.5 +/-    1.77      20.1 +/-    1.77  0.120 / 0.430
G21     263.1          10.5               -0.8 +/-   25.86      -2.3 +/-   25.86  0.100 / 0.450
G25     255.9          57.2               12.8 +/-    1.03      14.9 +/-    1.03  0.030 / 0.050
G29     321.2          44.3               10.2 +/-    0.73      13.9 +/-    0.73  0.030 / 0.040