PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/18-20:43:00
G10     259.3          33.5               10.0 +/-    1.11      16.4 +/-    1.11  0.150 / 0.300
G13     46.0           23.6                9.1 +/-    1.97      18.3 +/-    1.97  0.130 / 0.330
G15     75.8           57.9                9.9 +/-    0.69      11.5 +/-    0.69  0.040 / 0.050
G16     285.6          14.3                8.0 +/-    1.87      20.3 +/-    1.87  0.040 / 0.060
G20     284.0          56.5               10.6 +/-    1.09      12.4 +/-    1.09  0.170 / 0.490
G21     347.7          66.8                8.7 +/-    1.07       9.4 +/-    1.07  0.110 / 0.370
G24     124.1          10.1              -11.9 +/-   37.88     -33.0 +/-   37.88  0.060 / 0.250
G26     259.0          11.4               10.8 +/-    2.63      29.2 +/-    2.63  0.070 / 0.210
G27     321.8          11.9                5.2 +/-   11.80      13.9 +/-   11.80  0.200 / 0.470
G29     166.9          39.9               12.1 +/-    1.11      17.7 +/-    1.11  0.030 / 0.030