PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/15-02:12:40
G08     302.7          21.9                3.5 +/-    1.81       7.3 +/-    1.81  0.030 / 0.050
G10     341.6          61.3                5.9 +/-    0.49       6.6 +/-    0.49  0.030 / 0.050
G14     221.7          38.2               12.9 +/-    1.06      19.4 +/-    1.06  0.050 / 0.090
G18     46.3           57.5                7.2 +/-    1.33       8.4 +/-    1.33  0.090 / 0.110
G21     139.0          51.0                9.6 +/-    0.95      12.0 +/-    0.95  0.040 / 0.040
G24     68.8           30.0                7.7 +/-    0.81      13.4 +/-    0.81  0.030 / 0.040
G27     265.3          36.1                9.8 +/-    1.55      15.2 +/-    1.55  0.090 / 0.080
G32     229.3          56.5                9.0 +/-    1.14      10.6 +/-    1.14  0.070 / 0.090