PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/04-00:42:50
G08     306.2          20.7                9.7 +/-    1.38      20.9 +/-    1.38  0.040 / 0.090
G10     334.3          60.3                9.9 +/-    0.42      11.2 +/-    0.42  0.050 / 0.090
G14     219.4          34.6               11.6 +/-    1.01      18.5 +/-    1.01  0.040 / 0.060
G18     41.3           58.8               10.1 +/-    0.81      11.6 +/-    0.81  0.040 / 0.060
G21     135.9          54.0               12.2 +/-    0.62      14.7 +/-    0.62  0.040 / 0.050
G24     73.0           30.5               12.2 +/-    0.76      21.2 +/-    0.76  0.040 / 0.040
G27     270.0          37.2               10.9 +/-    1.19      16.7 +/-    1.19  0.060 / 0.090
G32     225.5          52.1               12.0 +/-    1.43      14.7 +/-    1.43  0.070 / 0.080