PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/04-15:58:00
G02     68.3           25.1               10.5 +/-    1.79      20.4 +/-    1.79  0.030 / 0.040
G05     49.2           53.9               10.6 +/-    1.35      12.8 +/-    1.35  0.030 / 0.040
G12     183.9          23.0               10.1 +/-    1.19      20.8 +/-    1.19  0.110 / 0.150
G13     121.4          22.0               11.4 +/-    1.22      24.0 +/-    1.22  0.080 / 0.210
G15     157.4          20.6               12.1 +/-    1.38      26.2 +/-    1.38  0.040 / 0.040
G18     221.0          10.7               -5.0 +/-   14.11     -13.7 +/-   14.11  0.040 / 0.030
G20     216.3          70.2               12.3 +/-    0.32      13.0 +/-    0.32  0.090 / 0.130
G21     280.8          26.3               10.5 +/-    1.76      20.0 +/-    1.76  0.130 / 0.140
G25     222.6          43.3               11.9 +/-    2.30      16.4 +/-    2.30  0.120 / 0.090
G29     344.7          70.5               12.0 +/-    0.33      12.6 +/-    0.33  0.090 / 0.110