PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-00:42:50
G08     283.7          23.1               14.3 +/-    1.03      29.2 +/-    1.03  0.080 / 0.130
G10     22.3           63.2               12.1 +/-    0.49      13.3 +/-    0.49  0.080 / 0.140
G14     238.5          54.7               15.5 +/-    0.98      18.5 +/-    0.98  0.030 / 0.030
G18     72.5           47.3               13.6 +/-    0.73      17.8 +/-    0.73  0.020 / 0.030
G21     149.2          31.4               17.5 +/-    0.97      29.7 +/-    0.97  0.050 / 0.140
G24     50.8           23.0               13.5 +/-    0.50      27.6 +/-    0.50  0.070 / 0.150
G27     245.0          27.0               18.2 +/-    2.15      33.9 +/-    2.15  0.090 / 0.130
G31     183.3          11.5               13.4 +/-   27.12      36.2 +/-   27.12  0.090 / 0.120
G32     261.1          70.6               15.1 +/-    0.87      15.9 +/-    0.87  0.040 / 0.090