PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-14:13:10
G02     71.3           23.8                5.1 +/-    0.76      10.2 +/-    0.76  0.100 / 0.110
G05     46.5           49.8                4.5 +/-    0.92       5.6 +/-    0.92  0.100 / 0.120
G12     181.3          17.3                4.3 +/-    2.59      10.2 +/-    2.59  0.030 / 0.050
G13     114.6          25.0                7.9 +/-    0.81      15.4 +/-    0.81  0.030 / 0.050
G15     157.4          23.7                8.1 +/-    1.41      16.2 +/-    1.41  0.110 / 0.220
G20     226.0          10.3               -8.0 +/-    8.59     -22.2 +/-    8.59  0.080 / 0.190
G21     285.0          28.1                4.1 +/-    0.70       7.4 +/-    0.70  0.070 / 0.190
G25     213.8          37.5                6.5 +/-    1.15       9.9 +/-    1.15  0.080 / 0.180
G26     318.7          10.7              -15.7 +/-   26.56     -43.3 +/-   26.56  0.030 / 0.030
G29     340.9          70.4                5.1 +/-    0.76       5.4 +/-    0.76  0.030 / 0.030