NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ Bennu ∴ Impactor table
Contact »
(101955) Bennu  ▹ 
IMPACTOR TABLE
Date MJD σ σimp Distance ± Width Stretching IP Exp. En. PS TS
(year-month-day) (RE) (RE/σ) (MT)
2178-09-24.690 116824.690 1.504 0.000 0.00 ± 0.000 0.00e+0 4.00e-7 5.68e-4 -4.55 n/a
2179-09-25.050 117190.050 0.816 0.000 0.00 ± 0.000 0.00e+0 8.00e-7 1.14e-3 -4.25 n/a
2181-09-24.500 117920.500 0.904 0.000 0.00 ± 0.000 0.00e+0 6.00e-7 8.52e-4 -4.38 n/a
2181-09-24.520 117920.520 1.331 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.86 n/a
2182-09-24.850 118285.850 0.909 0.000 0.00 ± 0.000 0.00e+0 3.70e-4 5.25e-1 -1.59 n/a
2184-09-24.190 119016.190 2.187 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.87 n/a
2184-09-24.220 119016.220 1.836 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.87 n/a
2184-09-24.300 119016.300 1.393 0.000 0.00 ± 0.000 0.00e+0 2.00e-6 2.84e-3 -3.87 n/a
2185-09-24.330 119381.330 2.555 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.17 n/a
2185-09-24.450 119381.450 1.728 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.87 n/a
2185-09-24.460 119381.460 1.994 0.000 0.00 ± 0.000 0.00e+0 3.00e-7 4.26e-4 -4.69 n/a
2185-09-24.470 119381.470 2.048 0.000 0.00 ± 0.000 0.00e+0 1.10e-6 1.56e-3 -4.13 n/a
2185-09-24.490 119381.490 1.391 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.87 n/a
2185-09-24.510 119381.510 1.663 0.000 0.00 ± 0.000 0.00e+0 3.00e-7 4.26e-4 -4.69 n/a
2185-09-24.550 119381.550 0.966 0.000 0.00 ± 0.000 0.00e+0 5.00e-7 7.10e-4 -4.47 n/a
2186-09-24.570 119746.570 2.951 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.17 n/a
2186-09-24.670 119746.670 1.540 0.000 0.00 ± 0.000 0.00e+0 3.00e-7 4.26e-4 -4.70 n/a
2186-09-24.710 119746.710 1.316 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.17 n/a
2187-09-24.860 120111.860 2.743 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.17 n/a
2187-09-24.920 120111.920 1.832 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.18 n/a
2187-09-24.930 120111.930 1.499 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.17 n/a
2187-09-24.960 120111.960 1.367 0.000 0.00 ± 0.000 0.00e+0 8.00e-7 1.14e-3 -4.27 n/a
2187-09-24.970 120111.970 2.286 0.000 0.00 ± 0.000 0.00e+0 3.00e-7 4.26e-4 -4.70 n/a
2187-09-24.970 120111.970 1.290 0.000 0.00 ± 0.000 0.00e+0 7.00e-7 9.94e-4 -4.33 n/a
2187-09-24.990 120111.990 1.861 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.87 n/a
2187-09-24.990 120111.990 1.042 0.000 0.00 ± 0.000 0.00e+0 1.40e-5 1.99e-2 -3.03 n/a
2187-09-25.060 120112.060 0.456 0.000 0.00 ± 0.000 0.00e+0 7.10e-5 1.01e-1 -2.32 n/a
2188-09-24.170 120477.170 3.568 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.18 n/a
2188-09-24.210 120477.210 3.341 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.18 n/a
2188-09-24.260 120477.260 1.421 0.000 0.00 ± 0.000 0.00e+0 3.00e-7 4.26e-4 -4.70 n/a
2189-09-24.320 120842.320 2.803 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.18 n/a
2189-09-24.400 120842.400 1.842 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.18 n/a
2189-09-24.470 120842.470 3.031 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.18 n/a
2189-09-24.480 120842.480 2.684 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.88 n/a
2189-09-24.500 120842.500 1.077 0.000 0.00 ± 0.000 0.00e+0 7.00e-7 9.94e-4 -4.34 n/a
2189-09-24.570 120842.570 2.809 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.88 n/a
2190-09-24.640 121207.640 2.158 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.88 n/a
2190-09-24.680 121207.680 2.801 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.18 n/a
2190-09-24.700 121207.700 1.878 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.18 n/a
2190-09-24.700 121207.700 2.605 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.88 n/a
2190-09-24.730 121207.730 1.121 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.18 n/a
2190-09-24.740 121207.740 2.001 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.88 n/a
2190-09-24.780 121207.780 0.836 0.000 0.00 ± 0.000 0.00e+0 2.50e-6 3.55e-3 -3.78 n/a
2191-09-24.830 121572.830 0.704 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.88 n/a
2191-09-24.910 121572.910 2.519 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.19 n/a
2191-09-24.940 121572.940 1.253 0.000 0.00 ± 0.000 0.00e+0 6.00e-7 8.52e-4 -4.41 n/a
2191-09-24.980 121572.980 2.204 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.19 n/a
2191-09-25.010 121573.010 1.953 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.19 n/a
2191-09-25.020 121573.020 1.308 0.000 0.00 ± 0.000 0.00e+0 1.60e-6 2.27e-3 -3.98 n/a
2192-09-24.180 121938.180 0.920 0.000 0.00 ± 0.000 0.00e+0 3.20e-6 4.54e-3 -3.68 n/a
2192-09-24.180 121938.180 0.862 0.000 0.00 ± 0.000 0.00e+0 8.00e-7 1.14e-3 -4.28 n/a
2192-09-24.310 121938.310 0.509 0.000 0.00 ± 0.000 0.00e+0 3.90e-5 5.54e-2 -2.60 n/a
2193-09-24.400 122303.400 1.926 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.19 n/a
2193-09-24.440 122303.440 1.661 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.19 n/a
2193-09-24.480 122303.480 2.506 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.19 n/a
2193-09-24.480 122303.480 1.236 0.000 0.00 ± 0.000 0.00e+0 5.00e-7 7.10e-4 -4.49 n/a
2193-09-24.510 122303.510 1.627 0.000 0.00 ± 0.000 0.00e+0 3.80e-6 5.40e-3 -3.61 n/a
2193-09-24.510 122303.510 1.939 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.89 n/a
2193-09-24.590 122303.590 3.183 0.000 0.00 ± 0.000 0.00e+0 1.60e-5 2.27e-2 -2.98 n/a
2194-09-24.470 122668.470 1.895 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.19 n/a
2194-09-24.690 122668.690 1.073 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.19 n/a
2194-09-24.780 122668.780 0.892 0.000 0.00 ± 0.000 0.00e+0 1.20e-5 1.70e-2 -3.11 n/a
2195-09-24.700 123033.700 1.747 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2195-09-24.860 123033.860 2.035 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2195-09-24.890 123033.890 1.995 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2195-09-24.910 123033.910 2.810 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2195-09-24.920 123033.920 1.613 0.000 0.00 ± 0.000 0.00e+0 5.00e-7 7.10e-4 -4.50 n/a
2195-09-24.940 123033.940 1.124 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.89 n/a
2195-09-24.970 123033.970 1.984 0.000 0.00 ± 0.000 0.00e+0 4.00e-7 5.68e-4 -4.59 n/a
2195-09-24.990 123033.990 1.745 0.000 0.00 ± 0.000 0.00e+0 6.00e-7 8.52e-4 -4.42 n/a
2196-09-24.030 123399.030 4.055 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2196-09-24.100 123399.100 2.403 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2196-09-24.100 123399.100 1.769 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2196-09-24.100 123399.100 2.687 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2196-09-24.210 123399.210 1.621 0.000 0.00 ± 0.000 0.00e+0 5.00e-7 7.10e-4 -4.50 n/a
2196-09-24.220 123399.220 2.018 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2196-09-24.230 123399.230 3.487 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2196-09-24.240 123399.240 4.481 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2197-09-24.270 123764.270 2.159 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2197-09-24.360 123764.360 1.644 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2197-09-24.390 123764.390 2.908 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2197-09-24.410 123764.410 0.838 0.000 0.00 ± 0.000 0.00e+0 2.70e-6 3.83e-3 -3.77 n/a
2197-09-24.440 123764.440 2.806 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.90 n/a
2197-09-24.440 123764.440 1.490 0.000 0.00 ± 0.000 0.00e+0 1.60e-6 2.27e-3 -4.00 n/a
2198-09-24.600 124129.600 3.003 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2198-09-24.700 124129.700 0.719 0.000 0.00 ± 0.000 0.00e+0 3.00e-7 4.26e-4 -4.73 n/a
2198-09-24.700 124129.700 1.856 0.000 0.00 ± 0.000 0.00e+0 4.00e-7 5.68e-4 -4.60 n/a
2198-09-24.700 124129.700 4.534 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.20 n/a
2199-09-24.850 124494.850 2.704 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.90 n/a
2199-09-24.870 124494.870 2.139 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2199-09-24.950 124494.950 3.994 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2199-09-25.030 124495.030 1.387 0.000 0.00 ± 0.000 0.00e+0 6.00e-7 8.52e-4 -4.43 n/a
2200-09-25.080 124860.080 2.615 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2200-09-25.090 124860.090 3.547 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2200-09-25.140 124860.140 2.793 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2200-09-25.170 124860.170 3.177 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2201-09-25.300 125225.300 2.560 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2201-09-25.320 125225.320 1.316 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2201-09-25.330 125225.330 3.251 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2201-09-25.380 125225.380 1.549 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2201-09-25.410 125225.410 1.482 0.000 0.00 ± 0.000 0.00e+0 3.00e-7 4.26e-4 -4.73 n/a
2201-09-25.420 125225.420 1.623 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2202-09-25.560 125590.560 3.044 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2202-09-25.610 125590.610 1.736 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.91 n/a
2202-09-25.670 125590.670 1.542 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.91 n/a
2202-09-25.680 125590.680 1.804 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.91 n/a
2202-09-25.680 125590.680 3.982 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2203-09-25.830 125955.830 2.250 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.91 n/a
2203-09-25.830 125955.830 2.387 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.22 n/a
2203-09-25.850 125955.850 4.799 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.21 n/a
2203-09-25.940 125955.940 2.327 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.91 n/a
2203-09-26.030 125956.030 1.298 0.000 0.00 ± 0.000 0.00e+0 1.00e-6 1.42e-3 -4.21 n/a
2204-09-25.080 126321.080 2.254 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.22 n/a
2204-09-25.160 126321.160 1.819 0.000 0.00 ± 0.000 0.00e+0 3.00e-7 4.26e-4 -4.74 n/a
2204-09-25.160 126321.160 1.399 0.000 0.00 ± 0.000 0.00e+0 3.00e-7 4.26e-4 -4.74 n/a
2204-09-25.190 126321.190 3.370 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.22 n/a
2205-09-25.260 126686.260 2.246 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.22 n/a
2205-09-25.280 126686.280 1.325 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.22 n/a
2205-09-25.350 126686.350 1.434 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.22 n/a
2206-09-25.630 127051.630 2.962 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.22 n/a
2206-09-25.640 127051.640 2.774 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.22 n/a
2206-09-25.660 127051.660 2.031 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.92 n/a
2207-09-25.750 127416.750 2.701 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.22 n/a
2207-09-25.860 127416.860 0.782 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.92 n/a
2207-09-25.930 127416.930 1.661 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.22 n/a
2208-09-25.130 127782.130 1.203 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.23 n/a
2208-09-25.250 127782.250 1.014 0.000 0.00 ± 0.000 0.00e+0 5.00e-7 7.10e-4 -4.53 n/a
2209-09-25.220 128147.220 2.833 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.23 n/a
2209-09-25.300 128147.300 1.671 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.93 n/a
2210-09-25.510 128512.510 2.484 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.23 n/a
2210-09-25.600 128512.600 2.336 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.23 n/a
2210-09-25.640 128512.640 2.884 0.000 0.00 ± 0.000 0.00e+0 2.00e-7 2.84e-4 -4.93 n/a
2210-09-25.660 128512.660 3.377 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.23 n/a
2210-09-25.690 128512.690 2.167 0.000 0.00 ± 0.000 0.00e+0 3.00e-7 4.26e-4 -4.75 n/a
2210-09-25.690 128512.690 1.519 0.000 0.00 ± 0.000 0.00e+0 1.40e-6 1.99e-3 -4.09 n/a
2210-09-25.740 128512.740 1.372 0.000 0.00 ± 0.000 0.00e+0 1.30e-6 1.85e-3 -4.12 n/a
2210-09-25.750 128512.750 1.726 0.000 0.00 ± 0.000 0.00e+0 3.00e-7 4.26e-4 -4.75 n/a
2212-09-25.100 129243.100 3.648 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.24 n/a
2213-09-25.170 129608.170 3.159 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.24 n/a
2213-09-25.230 129608.230 1.938 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.24 n/a
2213-09-25.260 129608.260 1.207 0.000 0.00 ± 0.000 0.00e+0 8.00e-7 1.14e-3 -4.34 n/a
2214-09-25.680 129973.680 2.499 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.24 n/a
2215-09-25.820 130338.820 1.494 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.24 n/a
2218-09-25.490 131434.490 1.803 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.25 n/a
2220-09-25.120 132165.120 2.153 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.25 n/a
2224-09-24.790 133625.790 1.484 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.26 n/a
2224-09-24.910 133625.910 1.923 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.26 n/a
2228-09-24.680 135086.680 3.745 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.27 n/a
2228-09-24.730 135086.730 1.151 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.27 n/a
2231-09-25.590 136182.590 1.418 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.28 n/a
2231-09-25.660 136182.660 2.365 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.28 n/a
2231-09-25.850 136182.850 2.620 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.28 n/a
2254-09-24.850 144582.850 2.744 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.32 n/a
2257-09-24.580 145678.580 1.944 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.33 n/a
2272-09-24.380 151157.380 0.948 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.35 n/a
2281-09-24.570 154444.570 2.053 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.42e-4 -5.37 n/a
2290-09-25.120 157732.120 2.160 0.000 0.00 ± 0.000 0.00e+0 1.00e-7 1.43e-4 -5.38 n/a

 

Based on 554 observations from 1999-09-11 to 2020-10-03.

Coordinates are given on the Target Plane.

Unit is one Earth radius, but impact cross section has radius between N/A and N/A Earth radii. Coordinates for LOV = N/A scaled= N/A second= N/A.

OrbFit software version= 5.0.5, 20/04/2017 Date of computation=20210714 120000.000 UTC.

ADDITIONAL NOTE

This risk table has not been computed with the standard OrbFit software, but by a Monte Carlo run performed by CNEOS.

The complete study performed by the CNEOS team is explained in the paper Farnocchia et al. (2021).

Note that the sigma values are referred to the sigma of the Monte Carlo method.