PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/12-20:13:10
G10     264.0          35.6               11.7 +/-    3.18      18.3 +/-    3.18  0.070 / 0.100
G13     43.9           21.8               10.6 +/-    3.53      22.2 +/-    3.53  0.070 / 0.090
G15     62.1           50.4               11.4 +/-    2.58      14.4 +/-    2.58  0.110 / 0.150
G16     286.3          11.8               14.2 +/-    3.46      38.1 +/-    3.46  0.090 / 0.160
G18     296.1          63.8                9.8 +/-    1.91      10.8 +/-    1.91  0.050 / 0.100
G20     52.5           37.2               10.6 +/-    1.73      16.2 +/-    1.73  0.050 / 0.090
G21     2.9            71.3               10.7 +/-    2.94      11.2 +/-    2.94  0.110 / 0.380
G24     123.7          12.3               -0.3 +/-   44.70      -0.7 +/-   44.70  0.110 / 0.380
G27     319.0          18.1               11.9 +/-    4.04      27.3 +/-    4.04  0.050 / 0.050
G29     165.4          29.0               10.9 +/-    1.66      19.6 +/-    1.66  0.040 / 0.050