PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/17-21:42:40
G08     306.7          20.4               13.0 +/-    1.73      28.4 +/-    1.73  0.050 / 0.110
G10     334.5          60.3               13.1 +/-    0.56      14.8 +/-    0.56  0.060 / 0.080
G14     219.4          34.1               14.8 +/-    1.10      23.9 +/-    1.10  0.030 / 0.070
G18     43.1           58.1               12.9 +/-    0.39      14.9 +/-    0.39  0.040 / 0.060
G21     136.0          52.3               14.2 +/-    0.74      17.4 +/-    0.74  0.050 / 0.090
G24     73.0           30.5               13.0 +/-    0.74      22.6 +/-    0.74  0.050 / 0.090
G27     270.1          37.2               14.5 +/-    1.13      22.1 +/-    1.13  0.030 / 0.060
G32     225.5          51.3               15.7 +/-    0.97      19.5 +/-    0.97  0.040 / 0.050