PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/25-02:12:50
G08     283.5          23.2                7.7 +/-    1.71      15.7 +/-    1.71  0.050 / 0.120
G10     22.2           63.2                7.2 +/-    1.16       8.0 +/-    1.16  0.050 / 0.110
G14     238.6          54.9                8.6 +/-    2.61      10.3 +/-    2.61  0.110 / 0.200
G18     72.0           47.8                6.5 +/-    0.55       8.4 +/-    0.55  0.110 / 0.200
G21     149.3          32.1                7.6 +/-    0.75      12.7 +/-    0.75  0.020 / 0.020
G24     50.8           23.0                7.0 +/-    2.64      14.4 +/-    2.64  0.020 / 0.020
G27     245.0          27.0                8.5 +/-    2.44      15.9 +/-    2.44  0.080 / 0.120
G31     182.7          12.3                5.1 +/-    4.23      13.6 +/-    4.23  0.070 / 0.100
G32     262.7          71.4                7.6 +/-    0.53       7.9 +/-    0.53  0.090 / 0.070