PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-00:28:00
G08     292.9          23.4                7.9 +/-    1.48      16.1 +/-    1.48  0.030 / 0.040
G10     2.8            63.0                9.0 +/-    1.24       9.9 +/-    1.24  0.030 / 0.040
G14     229.4          47.1               13.1 +/-    2.35      17.2 +/-    2.35  0.090 / 0.130
G18     61.6           52.0               11.3 +/-    0.71      13.9 +/-    0.71  0.050 / 0.100
G21     145.3          40.1               11.8 +/-    1.20      17.1 +/-    1.20  0.110 / 0.080
G24     58.4           27.1                9.8 +/-    0.99      18.2 +/-    0.99  0.090 / 0.130
G27     253.7          32.0               10.9 +/-    2.61      18.3 +/-    2.61  0.090 / 0.110
G32     242.4          64.1               11.0 +/-    0.63      12.0 +/-    0.63  0.080 / 0.140