PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/17-02:28:00
G08     292.0          23.5                8.3 +/-    0.85      16.8 +/-    0.85  0.070 / 0.090
G10     4.0            63.1                7.2 +/-    0.70       7.9 +/-    0.70  0.050 / 0.100
G14     230.0          47.8               10.5 +/-    1.39      13.7 +/-    1.39  0.050 / 0.030
G18     61.5           52.3                7.7 +/-    0.96       9.4 +/-    0.96  0.030 / 0.030
G21     145.7          40.4                9.7 +/-    0.83      14.0 +/-    0.83  0.050 / 0.090
G24     57.8           26.9                7.2 +/-    0.73      13.5 +/-    0.73  0.040 / 0.110
G27     253.0          31.6               10.7 +/-    1.40      18.1 +/-    1.40  0.080 / 0.120
G32     244.3          65.8               10.4 +/-    0.93      11.3 +/-    0.93  0.080 / 0.110