PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/17-23:12:30
G02     234.9          74.1               11.3 +/-    0.68      11.8 +/-    0.68  0.030 / 0.050
G05     171.9          14.5               19.2 +/-    3.78      48.3 +/-    3.78  0.040 / 0.050
G06     41.6           60.4               11.5 +/-    0.48      13.1 +/-    0.48  0.060 / 0.090
G12     321.6          49.8               10.1 +/-    0.41      12.8 +/-    0.41  0.080 / 0.100
G17     67.2           26.6                9.9 +/-    1.50      18.6 +/-    1.50  0.130 / 0.170
G19     53.1           41.6               10.0 +/-    1.51      14.1 +/-    1.51  0.100 / 0.160
G24     248.0          36.3               15.3 +/-    1.18      23.8 +/-    1.18  0.040 / 0.030