PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/17-01:12:30
G02     35.3           53.7               10.6 +/-    1.35      12.9 +/-    1.35  0.040 / 0.040
G05     133.1          63.7               12.5 +/-    0.63      13.8 +/-    0.63  0.030 / 0.030
G06     54.8           14.2                8.1 +/-    2.63      20.6 +/-    2.63  0.030 / 0.030
G12     196.4          65.9               12.3 +/-    0.34      13.3 +/-    0.34  0.030 / 0.030
G19     100.8          10.1               13.0 +/-    1.95      36.1 +/-    1.95  0.070 / 0.050
G25     295.5          53.7               12.0 +/-    3.22      14.5 +/-    3.22  0.070 / 0.040
G29     308.0          28.3                9.1 +/-    1.12      16.6 +/-    1.12  0.240 / 0.270