PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/25-02:12:40
G08     283.5          23.2                8.1 +/-    1.57      16.6 +/-    1.57  0.050 / 0.120
G10     22.2           63.2                5.5 +/-    0.55       6.1 +/-    0.55  0.050 / 0.150
G14     238.6          54.9                8.2 +/-    0.74       9.8 +/-    0.74  0.080 / 0.140
G18     72.0           47.8                6.7 +/-    0.55       8.6 +/-    0.55  0.070 / 0.130
G21     149.3          32.1                8.7 +/-    1.21      14.6 +/-    1.21  0.030 / 0.030
G24     50.8           23.0                7.5 +/-    0.87      15.4 +/-    0.87  0.030 / 0.030
G27     245.0          27.0               10.3 +/-    2.28      19.1 +/-    2.28  0.080 / 0.120
G31     182.7          12.3                7.9 +/-    3.01      21.0 +/-    3.01  0.090 / 0.120
G32     262.7          71.4                7.5 +/-    0.79       7.9 +/-    0.79  0.050 / 0.080