PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-20:12:50
G10     260.5          34.4               10.5 +/-    1.18      16.9 +/-    1.18  0.120 / 0.210
G13     45.2           22.7                9.1 +/-    1.37      18.8 +/-    1.37  0.100 / 0.190
G15     72.9           57.0               10.6 +/-    0.71      12.4 +/-    0.71  0.110 / 0.350
G16     284.6          14.0                8.9 +/-    2.25      22.6 +/-    2.25  0.130 / 0.360
G20     286.1          57.2               11.3 +/-    1.60      13.2 +/-    1.60  0.060 / 0.040
G21     350.3          67.8                8.7 +/-    1.27       9.3 +/-    1.27  0.070 / 0.040
G24     123.0          10.9                7.4 +/-   37.24      20.3 +/-   37.24  0.120 / 0.290
G26     258.1          10.8               10.1 +/-    2.64      27.8 +/-    2.64  0.120 / 0.300
G27     321.5          12.8                8.5 +/-    3.32      22.3 +/-    3.32  0.080 / 0.260
G29     167.1          38.4               13.1 +/-    0.93      19.6 +/-    0.93  0.070 / 0.210