PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-19:12:50
G02     56.6           35.7               15.2 +/-    1.78      23.8 +/-    1.78  0.080 / 0.070
G05     70.3           68.3               15.4 +/-    0.49      16.4 +/-    0.49  0.070 / 0.110
G12     185.9          35.9               17.2 +/-    1.49      26.9 +/-    1.49  0.070 / 0.080
G13     132.4          12.9               20.7 +/-    3.52      54.0 +/-    3.52  0.080 / 0.080
G20     205.7          57.2               16.4 +/-    0.36      19.1 +/-    0.36  0.230 / 0.520
G21     268.9          16.3               15.4 +/-    2.15      37.1 +/-    2.15  0.260 / 0.360
G25     235.7          53.4               16.2 +/-    2.94      19.7 +/-    2.94  0.030 / 0.030
G29     329.0          55.0               15.2 +/-    1.13      18.1 +/-    1.13  0.030 / 0.030