PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/22-20:27:50
G10     259.9          33.9                8.0 +/-    2.11      12.9 +/-    2.11  0.040 / 0.040
G13     45.6           23.2                7.5 +/-    1.62      15.2 +/-    1.62  0.050 / 0.040
G15     74.3           57.5                8.8 +/-    0.73      10.3 +/-    0.73  0.110 / 0.280
G16     285.1          14.2                7.4 +/-    1.54      18.7 +/-    1.54  0.140 / 0.300
G20     285.0          56.9                7.6 +/-    2.15       8.9 +/-    2.15  0.130 / 0.200
G21     349.0          67.3                8.4 +/-    1.29       9.0 +/-    1.29  0.110 / 0.270
G24     123.6          10.5                2.5 +/-   34.01       7.0 +/-   34.01  0.290 / 0.380
G26     258.5          11.1                9.0 +/-    1.23      24.6 +/-    1.23  0.240 / 0.300
G27     321.6          12.3                2.1 +/-   20.00       5.5 +/-   20.00  0.140 / 0.190
G29     167.0          39.1               10.3 +/-    1.31      15.2 +/-    1.31  0.210 / 0.200