PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-18:12:30
G02     33.6           54.9                8.6 +/-    1.17      10.3 +/-    1.17  0.030 / 0.030
G05     133.6          65.0                9.2 +/-    1.02      10.1 +/-    1.02  0.030 / 0.030
G06     56.6           10.9                7.7 +/-    1.76      21.0 +/-    1.76  0.030 / 0.030
G12     186.7          59.7                7.9 +/-    0.52       9.0 +/-    0.52  0.030 / 0.040
G19     101.8          10.5               10.7 +/-    2.41      29.4 +/-    2.41  0.040 / 0.050
G25     289.5          56.5                8.3 +/-    3.79       9.7 +/-    3.79  0.050 / 0.050
G29     309.2          29.5                7.6 +/-    1.82      13.5 +/-    1.82  0.110 / 0.130