PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/17-09:27:50
G10     260.7          33.9                4.6 +/-    1.79       7.5 +/-    1.79  0.110 / 0.400
G13     45.4           23.3                3.2 +/-    2.76       6.6 +/-    2.76  0.100 / 0.370
G15     65.4           51.8                5.2 +/-    0.99       6.5 +/-    0.99  0.110 / 0.170
G16     285.3          13.6                5.6 +/-    1.27      14.4 +/-    1.27  0.110 / 0.220
G20     42.2           50.1                4.0 +/-    0.66       5.1 +/-    0.66  0.050 / 0.050
G21     352.7          68.6                4.6 +/-    0.32       4.9 +/-    0.32  0.050 / 0.060
G24     125.7          10.5               -1.5 +/-   29.16      -4.2 +/-   29.16  0.040 / 0.040
G27     320.6          14.8                1.5 +/-    2.67       3.7 +/-    2.67  0.050 / 0.030
G29     166.9          36.9                6.4 +/-    1.31       9.8 +/-    1.31  0.140 / 0.320