PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/29-21:28:00
G08     291.5          23.3               11.8 +/-    1.20      24.0 +/-    1.20  0.120 / 0.110
G10     7.2            63.1               12.3 +/-    0.64      13.7 +/-    0.64  0.110 / 0.130
G14     231.0          48.2               14.3 +/-    1.31      18.4 +/-    1.31  0.070 / 0.120
G18     65.2           50.2               13.9 +/-    0.50      17.5 +/-    0.50  0.070 / 0.110
G21     146.0          36.4               15.4 +/-    1.19      23.9 +/-    1.19  0.050 / 0.110
G24     56.5           26.3               13.8 +/-    0.62      26.1 +/-    0.62  0.050 / 0.130
G27     251.9          31.0               15.0 +/-    1.15      25.7 +/-    1.15  0.060 / 0.090
G32     245.8          65.8               15.1 +/-    1.19      16.4 +/-    1.19  0.060 / 0.080