PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/09-21:43:10
G05     53.6           10.4               10.9 +/-    1.40      30.1 +/-    1.40  0.100 / 0.250
G10     245.9          21.7               15.6 +/-    2.15      33.0 +/-    2.15  0.110 / 0.320
G13     60.8           34.3               12.1 +/-    0.89      19.5 +/-    0.89  0.040 / 0.040
G15     99.6           57.7               13.7 +/-    0.61      15.9 +/-    0.61  0.040 / 0.060
G16     304.3          13.9               10.3 +/-    1.74      26.2 +/-    1.74  0.100 / 0.450
G18     260.9          52.1               13.2 +/-    0.84      16.2 +/-    0.84  0.140 / 0.460
G20     39.1           53.1               12.2 +/-    0.56      14.8 +/-    0.56  0.140 / 0.390
G21     327.9          57.1               13.3 +/-    0.71      15.6 +/-    0.71  0.110 / 0.330
G26     276.7          17.2               11.5 +/-    3.02      27.1 +/-    3.02  0.030 / 0.050
G29     161.3          52.6               12.7 +/-    1.09      15.5 +/-    1.09  0.040 / 0.050