PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-02:57:50
G08     294.6          23.0                6.7 +/-    1.46      13.8 +/-    1.46  0.050 / 0.150
G10     4.1            62.9                5.5 +/-    0.64       6.1 +/-    0.64  0.050 / 0.120
G14     228.3          42.9               11.8 +/-    0.99      16.4 +/-    0.99  0.060 / 0.100
G20     26.7           65.2                6.5 +/-    0.54       7.0 +/-    0.54  0.050 / 0.100
G21     145.9          43.0                8.7 +/-    0.68      12.1 +/-    0.68  0.030 / 0.030
G24     56.5           25.4                5.0 +/-    0.64       9.8 +/-    0.64  0.030 / 0.030
G27     256.3          32.4                8.5 +/-    2.81      14.2 +/-    2.81  0.060 / 0.110
G32     244.4          68.4                7.3 +/-    0.58       7.8 +/-    0.58  0.050 / 0.130