PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/09-22:42:40
G08     301.8          20.9                6.2 +/-    2.09      13.3 +/-    2.09  0.060 / 0.080
G10     359.9          62.5                6.6 +/-    0.41       7.3 +/-    0.41  0.060 / 0.080
G14     224.8          39.4                8.9 +/-    1.62      13.1 +/-    1.62  0.110 / 0.110
G20     58.8           54.3                7.8 +/-    0.59       9.4 +/-    0.59  0.100 / 0.140
G21     143.9          46.6                9.5 +/-    0.60      12.5 +/-    0.60  0.140 / 0.280
G24     62.3           28.3                6.9 +/-    1.58      12.6 +/-    1.58  0.130 / 0.300
G27     260.6          34.5                9.0 +/-    1.90      14.3 +/-    1.90  0.050 / 0.040
G32     236.0          63.7                8.6 +/-    1.17       9.5 +/-    1.17  0.040 / 0.030