PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/11-19:12:40
G10     261.2          34.8               11.9 +/-    1.75      18.9 +/-    1.75  0.110 / 0.260
G13     44.8           22.2               11.7 +/-    2.70      24.4 +/-    2.70  0.110 / 0.300
G15     70.7           56.0               12.4 +/-    0.53      14.6 +/-    0.53  0.050 / 0.030
G16     284.2          13.8                9.3 +/-    2.22      23.7 +/-    2.22  0.050 / 0.040
G20     287.2          57.6               11.1 +/-    1.88      12.9 +/-    1.88  0.120 / 0.460
G21     352.5          68.5               12.2 +/-    0.59      13.0 +/-    0.59  0.140 / 0.540
G24     122.1          11.3               15.2 +/-    2.77      41.2 +/-    2.77  0.280 / 0.230
G27     321.3          13.1                7.7 +/-    2.36      19.9 +/-    2.36  0.230 / 0.260
G29     167.0          37.4               13.5 +/-    0.71      20.5 +/-    0.71  0.030 / 0.040