PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/26-01:58:10
G02     17.3           67.8               10.7 +/-    0.52      11.5 +/-    0.52  0.060 / 0.080
G05     155.4          47.4               15.1 +/-    1.33      19.7 +/-    1.33  0.060 / 0.110
G06     46.0           28.7                9.0 +/-    1.28      16.1 +/-    1.28  0.030 / 0.030
G12     261.3          79.7               13.2 +/-    1.65      13.4 +/-    1.65  0.030 / 0.020
G19     86.1           20.5               11.8 +/-    3.35      25.7 +/-    3.35  0.040 / 0.050
G24     219.2          13.8               16.2 +/-    1.52      41.5 +/-    1.52  0.040 / 0.050
G25     313.2          39.7               10.0 +/-    1.45      14.7 +/-    1.45  0.050 / 0.090
G29     295.4          16.2                9.5 +/-    0.97      22.9 +/-    0.97  0.050 / 0.070