PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-20:42:50
G08     295.6          22.9               20.2 +/-    1.32      41.5 +/-    1.32  0.080 / 0.090
G10     359.1          62.8               20.1 +/-    0.57      22.3 +/-    0.57  0.080 / 0.100
G14     227.7          44.7               28.5 +/-    1.18      38.6 +/-    1.18  0.050 / 0.100
G18     60.6           52.0               20.5 +/-    0.49      25.3 +/-    0.49  0.050 / 0.100
G21     144.0          39.7               27.5 +/-    0.84      40.2 +/-    0.84  0.060 / 0.110
G24     60.1           27.7               18.0 +/-    1.14      33.0 +/-    1.14  0.070 / 0.100
G27     256.0          32.9               23.9 +/-    0.73      39.4 +/-    0.73  0.080 / 0.090
G32     239.6          63.0               26.8 +/-    1.01      29.7 +/-    1.01  0.060 / 0.100