PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/26-23:57:40
G10     279.9          44.3               10.2 +/-    0.82      13.9 +/-    0.82  0.100 / 0.170
G13     38.5           10.7                9.6 +/-    1.82      26.2 +/-    1.82  0.110 / 0.170
G15     50.7           40.5               10.9 +/-    0.87      15.7 +/-    0.87  0.140 / 0.260
G18     326.2          66.6               10.2 +/-    0.81      11.0 +/-    0.81  0.090 / 0.360
G20     63.0           25.6                9.0 +/-    0.97      17.3 +/-    0.97  0.040 / 0.040
G21     45.6           76.9               11.7 +/-    0.62      12.0 +/-    0.62  0.040 / 0.040
G24     111.5          20.5               15.0 +/-    0.81      32.6 +/-    0.81  0.070 / 0.110
G27     310.6          28.5               10.0 +/-    0.86      18.2 +/-    0.86  0.090 / 0.110
G29     167.4          16.7               16.6 +/-    2.31      39.7 +/-    2.31  0.070 / 0.170
G32     207.1          18.3               16.0 +/-    1.48      36.8 +/-    1.48  0.070 / 0.170