PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/12-00:58:10
G08     283.8          23.2               10.3 +/-    1.54      21.0 +/-    1.54  0.040 / 0.020
G10     21.9           63.2               10.6 +/-    0.82      11.7 +/-    0.82  0.030 / 0.020
G14     238.3          54.6               13.0 +/-    2.22      15.6 +/-    2.22  0.060 / 0.110
G18     72.3           47.5               11.3 +/-    1.45      14.7 +/-    1.45  0.050 / 0.110
G21     149.2          31.7               12.0 +/-    0.96      20.3 +/-    0.96  0.110 / 0.190
G24     50.9           23.1                9.9 +/-    2.27      20.2 +/-    2.27  0.110 / 0.210
G27     245.1          27.1               11.7 +/-    2.50      21.8 +/-    2.50  0.090 / 0.240
G31     183.3          11.6                3.4 +/-   27.78       9.3 +/-   27.78  0.120 / 0.230
G32     261.0          70.7               11.2 +/-    0.57      11.8 +/-    0.57  0.100 / 0.110