PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/25-02:57:50
G08     296.6          22.8                7.5 +/-    1.79      15.5 +/-    1.79  0.060 / 0.120
G10     0.0            62.8                8.6 +/-    0.52       9.5 +/-    0.52  0.050 / 0.110
G14     226.8          41.2               12.5 +/-    1.29      17.9 +/-    1.29  0.050 / 0.100
G20     23.7           65.3                9.2 +/-    0.57      10.0 +/-    0.57  0.040 / 0.090
G21     144.8          44.8               10.1 +/-    1.28      13.6 +/-    1.28  0.060 / 0.130
G24     58.2           26.2                7.6 +/-    1.29      14.6 +/-    1.29  0.060 / 0.130
G27     258.3          33.3                8.9 +/-    1.22      14.7 +/-    1.22  0.030 / 0.030
G32     240.8          66.9                9.4 +/-    0.67      10.1 +/-    0.67  0.030 / 0.030