PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/14-21:58:00
G08     305.5          20.8               12.4 +/-    1.70      26.8 +/-    1.70  0.050 / 0.060
G10     336.9          60.7               11.7 +/-    0.45      13.3 +/-    0.45  0.040 / 0.070
G14     220.2          35.3               15.9 +/-    1.42      25.1 +/-    1.42  0.070 / 0.080
G18     44.9           57.6               12.4 +/-    0.37      14.4 +/-    0.37  0.060 / 0.080
G21     137.0          51.2               15.0 +/-    0.84      18.6 +/-    0.84  0.070 / 0.090
G24     71.5           30.3               13.0 +/-    0.54      22.7 +/-    0.54  0.060 / 0.090
G27     268.5          36.9               15.1 +/-    0.84      23.2 +/-    0.84  0.070 / 0.160
G32     226.6          52.4               16.3 +/-    1.45      20.0 +/-    1.45  0.050 / 0.120