PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/25-19:28:00
G08     296.6          22.7                9.8 +/-    0.73      20.2 +/-    0.73  0.090 / 0.090
G10     357.8          62.7                9.3 +/-    0.97      10.3 +/-    0.97  0.090 / 0.110
G14     227.1          43.8               10.4 +/-    2.40      14.3 +/-    2.40  0.050 / 0.090
G18     60.3           52.0                9.4 +/-    0.81      11.6 +/-    0.81  0.050 / 0.090
G21     143.5          39.3               10.5 +/-    0.80      15.5 +/-    0.80  0.070 / 0.100
G24     60.6           27.9                7.6 +/-    1.98      13.8 +/-    1.98  0.050 / 0.090
G27     256.7          33.2               10.1 +/-    2.52      16.5 +/-    2.52  0.030 / 0.020
G32     239.0          63.1               10.2 +/-    1.52      11.3 +/-    1.52  0.030 / 0.030