PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/15-20:12:30
G02     38.2           51.6               10.9 +/-    0.51      13.5 +/-    0.51  0.040 / 0.060
G05     134.2          67.1               14.0 +/-    0.84      15.1 +/-    0.84  0.040 / 0.050
G06     58.6           10.1                9.6 +/-    2.78      26.7 +/-    2.78  0.030 / 0.040
G12     191.7          58.2               14.4 +/-    1.26      16.6 +/-    1.26  0.040 / 0.040
G20     199.0          35.5               16.4 +/-    1.35      25.9 +/-    1.35  0.040 / 0.090
G25     275.3          60.2               13.4 +/-    1.16      15.2 +/-    1.16  0.040 / 0.100
G29     314.0          36.1               11.9 +/-    1.17      18.6 +/-    1.17  0.040 / 0.040