PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-20:12:30
G08     298.2          22.5                9.0 +/-    1.19      18.7 +/-    1.19  0.060 / 0.120
G10     353.7          62.5                8.5 +/-    0.79       9.5 +/-    0.79  0.060 / 0.100
G14     225.7          42.3               12.1 +/-    1.19      17.0 +/-    1.19  0.050 / 0.080
G18     57.5           53.2                9.1 +/-    0.75      11.0 +/-    0.75  0.050 / 0.110
G21     142.5          41.8               13.3 +/-    0.62      18.8 +/-    0.62  0.040 / 0.090
G24     62.6           28.6                8.5 +/-    0.45      15.3 +/-    0.45  0.050 / 0.090
G27     258.8          34.0               10.3 +/-    1.06      16.6 +/-    1.06  0.060 / 0.120
G32     236.1          61.0               12.0 +/-    0.67      13.5 +/-    0.67  0.070 / 0.110