PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/13-02:43:10
G08     292.2          23.5                6.6 +/-    1.56      13.3 +/-    1.56  0.050 / 0.030
G10     3.6            63.1                7.8 +/-    1.11       8.7 +/-    1.11  0.040 / 0.020
G14     229.8          47.7               12.8 +/-    2.15      16.6 +/-    2.15  0.040 / 0.060
G18     61.2           52.5                7.6 +/-    0.77       9.3 +/-    0.77  0.040 / 0.060
G21     145.7          40.7                9.9 +/-    0.56      14.3 +/-    0.56  0.090 / 0.170
G24     57.9           26.9                5.7 +/-    1.28      10.7 +/-    1.28  0.050 / 0.110
G27     253.2          31.7                9.5 +/-    2.52      16.1 +/-    2.52  0.060 / 0.020
G32     244.1          65.8                9.0 +/-    0.79       9.7 +/-    0.79  0.040 / 0.020