PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/25-21:57:40
G08     284.9          23.0               12.7 +/-    1.71      26.0 +/-    1.71  0.060 / 0.160
G10     21.1           63.2                9.9 +/-    0.44      11.0 +/-    0.44  0.050 / 0.180
G14     237.6          53.7               13.8 +/-    1.42      16.7 +/-    1.42  0.110 / 0.150
G18     72.7           46.8               10.8 +/-    0.82      14.1 +/-    0.82  0.080 / 0.150
G21     148.7          30.5               14.4 +/-    1.81      25.0 +/-    1.81  0.070 / 0.140
G24     51.2           23.2                9.9 +/-    0.32      20.1 +/-    0.32  0.070 / 0.130
G27     245.7          27.4               14.7 +/-    1.66      27.3 +/-    1.66  0.040 / 0.070
G32     259.5          70.2               12.5 +/-    0.81      13.2 +/-    0.81  0.040 / 0.070