PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-01:13:00
G08     286.9          23.4               11.8 +/-    3.01      24.0 +/-    3.01  0.040 / 0.120
G10     15.2           63.3                9.7 +/-    2.38      10.7 +/-    2.38  0.050 / 0.120
G14     234.9          52.1               12.3 +/-    2.20      15.2 +/-    2.20  0.060 / 0.100
G18     68.6           49.2               10.5 +/-    2.82      13.3 +/-    2.82  0.060 / 0.120
G21     148.0          34.8               12.2 +/-    8.04      19.4 +/-    8.04  0.030 / 0.030
G24     53.3           24.6                9.8 +/-   13.73      19.3 +/-   13.73  0.040 / 0.040
G27     248.0          28.9               13.2 +/-    2.52      23.7 +/-    2.52  0.090 / 0.140
G32     253.9          68.8                9.6 +/-    3.08      10.2 +/-    3.08  0.090 / 0.110