PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/22-04:12:40
G01     307.0          33.2                8.4 +/-    1.66      13.7 +/-    1.66  0.020 / 0.030
G10     105.5          41.2                8.7 +/-    0.82      12.4 +/-    0.82  0.030 / 0.050
G11     279.8          29.6                9.3 +/-    0.79      16.5 +/-    0.79  0.080 / 0.150
G14     0.8            66.3                7.0 +/-    0.40       7.5 +/-    0.40  0.120 / 0.150
G18     116.8          15.5                8.2 +/-    1.55      20.2 +/-    1.55  0.060 / 0.090
G22     309.5          25.8                8.9 +/-    1.19      17.0 +/-    1.19  0.090 / 0.100
G25     78.2           15.9                7.0 +/-    2.85      17.1 +/-    2.85  0.100 / 0.170
G31     168.8          64.1               10.6 +/-    0.73      11.6 +/-    0.73  0.130 / 0.190
G32     33.8           54.0                8.2 +/-    1.35       9.9 +/-    1.35  0.030 / 0.050