PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/25-23:57:30
G08     285.8          23.3               13.8 +/-    0.94      28.1 +/-    0.94  0.040 / 0.030
G10     18.1           63.2               12.8 +/-    0.63      14.2 +/-    0.63  0.030 / 0.020
G14     236.3          53.0               12.8 +/-    2.01      15.6 +/-    2.01  0.110 / 0.100
G18     70.5           48.1               12.6 +/-    0.80      16.3 +/-    0.80  0.080 / 0.160
G21     148.4          32.9               13.7 +/-    1.21      22.6 +/-    1.21  0.060 / 0.120
G24     52.2           24.0               10.8 +/-    1.93      21.7 +/-    1.93  0.060 / 0.120
G27     246.8          28.2               14.6 +/-    1.13      26.6 +/-    1.13  0.080 / 0.100
G32     255.8          68.9               10.5 +/-    0.62      11.2 +/-    0.62  0.110 / 0.100