PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-23:42:40
G08     309.0          19.5               10.8 +/-    1.94      24.0 +/-    1.94  0.030 / 0.030
G10     328.5          59.3               11.3 +/-    0.63      12.9 +/-    0.63  0.020 / 0.030
G14     217.7          31.6               16.2 +/-    1.40      27.5 +/-    1.40  0.030 / 0.040
G15     46.6           12.0                9.8 +/-    1.44      26.3 +/-    1.44  0.030 / 0.050
G18     36.7           59.9               12.5 +/-    0.44      14.2 +/-    0.44  0.310 / 0.320
G21     133.0          56.5               15.0 +/-    0.55      17.6 +/-    0.55  0.070 / 0.070
G24     76.6           30.6               12.3 +/-    0.91      21.2 +/-    0.91  0.060 / 0.080
G27     274.1          37.7               13.9 +/-    1.97      21.1 +/-    1.97  0.100 / 0.090
G32     222.8          48.6               13.3 +/-    2.19      17.1 +/-    2.19  0.110 / 0.150