The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.
# Object: 22KJ2 # Created Tue May 7 01:18:07 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 107 observations of 107 # Arc: 7.28y # First observation: 2016/03/09 # Last observation: 2023/06/21 # Chi-squared of fit: 101.24 DOF: 208 RMS: 0.17 # Min/Max residuals: -0.62 0.49 # Exact a, adot, b, bdot, g, gdot: 2.386203E-05 1.122729E-01 4.127146E-06 1.793382E-02 7.381221E-02 -7.085061E-02 # Covariance matrix: 3.7221E-13 -3.1356E-10 2.0061E-14 -8.8781E-11 1.3055E-11 -1.6942E-10 -3.1356E-10 1.4367E-06 -9.1658E-11 4.0591E-07 -3.4073E-08 7.7320E-07 2.0061E-14 -9.1658E-11 2.9959E-13 -2.6005E-11 2.2085E-12 -4.9335E-11 -8.8781E-11 4.0591E-07 -2.6005E-11 1.1478E-07 -9.7477E-09 2.1848E-07 1.3055E-11 -3.4073E-08 2.2085E-12 -9.7477E-09 3.9452E-09 -1.8738E-08 -1.6942E-10 7.7320E-07 -4.9335E-11 2.1848E-07 -1.8738E-08 4.1619E-07 # lat0 lon0 xBary yBary zBary JD0 -3.667303 171.217770 0.040932 -0.063090 -0.986851 2457456.869036 # Heliocentric elements and errors Epoch: 2457456.5000 = 2016/03/09 Mean Anomaly: 322.31767 +/- 0.003 Argument of Peri: 82.48815 +/- 0.000 Long of Asc Node: 191.22968 +/- 0.000 Inclination: 9.82740 +/- 0.001 Eccentricity: 0.56081392 +/- 0.0000 Semi-Major Axis: 18.54806158 +/- 0.0000 Time of Perihelion: 2460510.5873 +/- 0.3 Perihelion: 8.14605045 +/- 0.0003 Aphelion: 28.95007270 +/- 0.0003 Period (y) 79.8833 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -14.33648351 +/- 0.0000 Ecliptic Y 2.25348188 +/- 0.0000 Ecliptic Z -0.86650385 +/- 0.0000 Ecliptic XDOT 0.00191388 +/- 0.0000 Ecliptic YDOT -0.00451652 +/- 0.0000 Ecliptic ZDOT 0.00083195 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 14.53855935 +/- 0.0000 Geocenter to KBO 13.54813223 +/- 0.0000 # Hcoef: 12.34
The following table shows the complete astrometric record for 22KJ2. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (22KJ2) followed by the observatory code and reference code for the source of the astrometry.
2016 03 09.368247 11 21 57.36 +00 06 36.7 24.4r 22KJ2 568 C~5fxo 2016 03 09.403836 11 21 56.93 +00 06 40.2 23.5r 22KJ2 568 C~5fxo 2016 03 09.499353 11 21 55.77 +00 06 48.2 23.7r 22KJ2 568 C~5fxo 2016 03 09.545443 11 21 55.17 +00 06 52.2 23.9r 22KJ2 568 C~5fxo 2016 03 09.569944 11 21 54.91 +00 06 54.5 23.8r 22KJ2 568 C~5fxo 2017 02 22.478411 11 52 10.623 -01 57 26.45 24.2G 22KJ2 F51 C~5fxo 2017 03 19.366040 11 47 11.421 -01 20 47.16 23.4G 22KJ2 F51 C~5fxo 2017 03 29.349903 11 45 07.240 -01 04 55.23 23.3G 22KJ2 F51 C~5fxo 2018 03 18.415053 12 19 17.896 -03 20 28.38 23.2G 22KJ2 F51 C~5fxo 2018 03 18.426909 12 19 17.742 -03 20 26.58 23.1G 22KJ2 F51 C~5fxo 2018 03 18.428854 12 19 17.732 -03 20 26.32 23.4G 22KJ2 F51 C~5fxo 2018 03 18.438770 12 19 17.603 -03 20 25.32 22.9G 22KJ2 F51 C~5fxo 2018 03 18.440705 12 19 17.555 -03 20 25.25 23.9G 22KJ2 F51 C~5fxo 2019 04 03.402135 12 53 37.727 -05 07 33.58 22.5G 22KJ2 F51 C~5fxo 2019 04 03.417263 12 53 37.512 -05 07 31.84 22.4G 22KJ2 F51 C~5fxo 2019 04 03.432387 12 53 37.290 -05 07 30.32 22.1G 22KJ2 F51 C~5fxo 2019 04 03.447522 12 53 37.091 -05 07 28.64 22.3G 22KJ2 F51 C~5fxo 2019 04 06.347081 12 52 56.478 -05 02 17.65 22.0G 22KJ2 F51 C~5fxo 2019 04 06.358855 12 52 56.304 -05 02 16.37 22.4G 22KJ2 F51 C~5fxo 2019 04 06.370649 12 52 56.150 -05 02 15.04 22.8G 22KJ2 F51 C~5fxo 2019 04 06.382449 12 52 55.969 -05 02 13.98 22.6G 22KJ2 F51 C~5fxo 2020 04 15.434303 13 36 16.163 -07 13 23.03 20.6G 22KJ2 F52 C~5fxo 2020 04 19.421082 13 35 16.638 -07 06 08.64 22.2G 22KJ2 F51 C~5fxo 2020 04 19.433027 13 35 16.441 -07 06 07.34 22.2G 22KJ2 F51 C~5fxo 2020 04 19.444944 13 35 16.257 -07 06 05.94 22.5G 22KJ2 F51 C~5fxo 2020 04 19.456864 13 35 16.070 -07 06 04.62 21.9G 22KJ2 F51 C~5fxo 2020 04 26.373279 13 33 33.938 -06 53 48.12 22.2G 22KJ2 F51 C~5fxo 2020 04 26.385155 13 33 33.777 -06 53 46.51 22.0G 22KJ2 F51 C~5fxo 2020 04 26.408792 13 33 33.407 -06 53 44.01 21.7G 22KJ2 F51 C~5fxo 2020 05 13.305532 13 29 45.190 -06 26 44.82 22.6G 22KJ2 F51 C~5fxo 2020 05 13.317021 13 29 45.059 -06 26 43.66 22.3G 22KJ2 F51 C~5fxo 2020 05 13.328489 13 29 44.918 -06 26 42.85 22.1G 22KJ2 F51 C~5fxo 2020 05 13.340057 13 29 44.751 -06 26 41.75 22.3G 22KJ2 F51 C~5fxo 2020 05 17.400615 13 28 57.202 -06 21 07.64 20.1G 22KJ2 F52 C~5fxo 2020 05 25.287436 13 27 35.728 -06 11 33.93 23.0G 22KJ2 F51 C~5fxo 2020 05 25.298552 13 27 35.640 -06 11 33.45 23.1G 22KJ2 F51 C~5fxo 2020 05 25.309657 13 27 35.524 -06 11 32.52 22.8G 22KJ2 F51 C~5fxo 2020 05 25.320770 13 27 35.410 -06 11 31.79 22.9G 22KJ2 F51 C~5fxo 2021 01 23.627757 14 36 07.524 -11 10 48.14 21.4G 22KJ2 F51 C~5fxo 2021 03 15.548421 14 38 15.470 -10 39 48.05 22.8G 22KJ2 F51 C~5fxo 2021 03 15.559703 14 38 15.392 -10 39 46.93 22.4G 22KJ2 F51 C~5fxo 2021 03 15.560346 14 38 15.362 -10 39 46.97 22.6G 22KJ2 F51 C~5fxo 2021 03 15.570964 14 38 15.285 -10 39 46.18 22.0G 22KJ2 F51 C~5fxo 2021 03 15.571618 14 38 15.293 -10 39 46.09 22.1G 22KJ2 F51 C~5fxo 2021 03 15.582275 14 38 15.205 -10 39 45.19 22.4G 22KJ2 F51 C~5fxo 2021 03 15.582916 14 38 15.197 -10 39 45.06 22.6G 22KJ2 F51 C~5fxo 2021 04 10.490896 14 33 27.479 -09 58 25.34 22.2G 22KJ2 F51 C~5fxo 2021 04 10.501446 14 33 27.331 -09 58 23.97 22.0G 22KJ2 F51 C~5fxo 2021 04 10.502106 14 33 27.312 -09 58 24.04 22.0G 22KJ2 F51 C~5fxo 2021 04 10.512668 14 33 27.159 -09 58 22.56 22.2G 22KJ2 F51 C~5fxo 2021 04 10.513315 14 33 27.150 -09 58 22.93 22.1G 22KJ2 F51 C~5fxo 2021 04 10.523868 14 33 27.020 -09 58 21.50 22.3G 22KJ2 F51 C~5fxo 2021 04 10.524512 14 33 26.980 -09 58 21.73 22.8G 22KJ2 F51 C~5fxo 2021 04 14.524514 14 32 28.609 -09 51 15.78 22.7G 22KJ2 F52 C~5fxo 2021 04 16.491419 14 31 59.028 -09 47 45.23 21.8G 22KJ2 F51 C~5fxo 2021 04 16.503881 14 31 58.841 -09 47 43.80 21.9G 22KJ2 F51 C~5fxo 2021 04 16.516302 14 31 58.647 -09 47 42.41 22.5G 22KJ2 F51 C~5fxo 2021 04 16.528758 14 31 58.464 -09 47 41.14 22.3G 22KJ2 F51 C~5fxo 2021 04 17.421638 14 31 44.900 -09 46 05.30 22.4G 22KJ2 F52 C~5fxo 2021 04 19.501078 14 31 12.843 -09 42 22.05 21.4G 22KJ2 F52 C~5fxo 2021 05 01.295357 14 28 05.680 -09 21 32.82 22.7G 22KJ2 F52 C~5fxo 2021 05 15.407833 14 24 24.042 -08 58 33.52 22.3G 22KJ2 F51 C~5fxo 2021 06 05.301602 14 19 50.662 -08 32 35.24 21.9G 22KJ2 F51 C~5fxo 2021 06 05.314589 14 19 50.528 -08 32 34.75 22.0G 22KJ2 F51 C~5fxo 2021 06 05.327579 14 19 50.357 -08 32 34.15 19.4G 22KJ2 F51 C~5fxo 2021 06 05.340546 14 19 50.221 -08 32 33.61 19.9G 22KJ2 F51 C~5fxo 2021 06 11.343755 14 18 51.796 -08 27 29.78 22.1G 22KJ2 F51 C~5fxo 2021 06 11.368305 14 18 51.566 -08 27 28.42 22.0G 22KJ2 F51 C~5fxo 2022 03 25.566341 15 43 11.400 -12 39 46.61 21.9G 22KJ2 F52 C~5fxo 2022 03 25.577154 15 43 11.369 -12 39 45.93 21.8G 22KJ2 F52 C~5fxo 2022 03 25.587980 15 43 11.298 -12 39 44.51 21.6G 22KJ2 F52 C~5fxo 2022 03 25.598813 15 43 11.249 -12 39 43.76 21.2G 22KJ2 F52 C~5fxo 2022 04 02.559613 15 42 19.918 -12 28 37.47 21.8G 22KJ2 F52 C~5fxo 2022 04 02.571725 15 42 19.815 -12 28 36.53 22.1G 22KJ2 F52 C~5fxo 2022 04 02.583805 15 42 19.729 -12 28 35.70 22.2G 22KJ2 F52 C~5fxo 2022 04 02.595848 15 42 19.611 -12 28 34.40 22.1G 22KJ2 F52 C~5fxo 2022 04 08.524861 15 41 25.586 -12 19 42.72 22.2G 22KJ2 F52 C~5fxo 2022 04 08.535748 15 41 25.502 -12 19 41.80 22.1G 22KJ2 F52 C~5fxo 2022 04 08.546680 15 41 25.349 -12 19 40.85 21.9G 22KJ2 F52 C~5fxo 2022 04 23.506992 15 38 18.918 -11 56 01.98 21.7G 22KJ2 F52 C~5fxo 2022 04 23.519130 15 38 18.734 -11 56 00.67 22.1G 22KJ2 F52 C~5fxo 2022 04 23.531316 15 38 18.552 -11 55 59.25 21.8G 22KJ2 F52 C~5fxo 2022 04 23.543482 15 38 18.367 -11 55 58.35 22.0G 22KJ2 F52 C~5fxo 2022 05 23.399903 15 30 05.424 -11 10 43.29 21.7w 22KJ2 F52 C~5fxo 2022 05 23.411365 15 30 05.217 -11 10 42.29 22.0w 22KJ2 F52 C~5fxo 2022 05 23.422900 15 30 05.019 -11 10 41.42 21.8w 22KJ2 F52 C~5fxo 2022 05 23.434413 15 30 04.811 -11 10 40.60 21.6w 22KJ2 F52 C~5fxo 2022 05 24.418749 15 29 48.084 -11 09 23.37 21.7G 22KJ2 568 C~5fxo 2022 05 24.422089 15 29 48.022 -11 09 23.08 21.7G 22KJ2 568 C~5fxo 2022 05 25.296492 15 29 33.273 -11 08 15.50 21.5G 22KJ2 568 C~5fxo 2022 05 25.298397 15 29 33.241 -11 08 15.34 21.5G 22KJ2 568 C~5fxo 2022 05 25.300300 15 29 33.207 -11 08 15.22 21.5G 22KJ2 568 C~5fxo 2023 05 15.440002 16 53 04.038 -12 50 29.67 21.6w 22KJ2 F51 C~6oJd 2023 05 15.450995 16 53 03.847 -12 50 28.68 21.9w 22KJ2 F51 C~6oJd 2023 05 15.462015 16 53 03.680 -12 50 28.04 21.9w 22KJ2 F51 C~6oJd 2023 05 21.485794 16 51 23.558 -12 43 30.05 21.8w 22KJ2 F51 C~6oJd 2023 05 21.497801 16 51 23.329 -12 43 29.14 21.6w 22KJ2 F51 C~6oJd 2023 05 21.511691 16 51 23.085 -12 43 28.39 21.4w 22KJ2 F51 C~6oJd 2023 06 16.412373 16 43 38.661 -12 21 13.90 21.4w 22KJ2 F51 C~6rE5 2023 06 16.421626 16 43 38.474 -12 21 13.51 21.4w 22KJ2 F51 C~6rE5 2023 06 16.424196 16 43 38.438 -12 21 13.25 21.3w 22KJ2 F51 C~6rE5 2023 06 16.433432 16 43 38.280 -12 21 12.99 21.4w 22KJ2 F51 C~6rE5 2023 06 16.436014 16 43 38.223 -12 21 13.06 21.2w 22KJ2 F51 C~6rE5 2023 06 16.445245 16 43 38.051 -12 21 12.73 21.2w 22KJ2 F51 C~6rE5 2023 06 21.371550 16 42 13.764 -12 18 45.03 21.7w 22KJ2 F51 C~6rE5 2023 06 21.383416 16 42 13.559 -12 18 44.80 21.4w 22KJ2 F51 C~6rE5 2023 06 21.395288 16 42 13.342 -12 18 44.35 21.3w 22KJ2 F51 C~6rE5
The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.
1 0.0000 0.00 0.01 0.00 -0.07
2 0.0001 0.00 0.11 0.00 0.33
3 0.0004 0.00 0.29 0.00 0.01
4 0.0005 0.00 -0.25 0.00 -0.00
5 0.0006 0.00 0.34 0.00 0.16
6 0.9585 0.00 -0.33 0.00 -0.05
7 1.0267 0.00 -0.35 0.00 0.27
8 1.0540 0.00 0.01 0.00 0.21
9 2.0234 0.00 -0.23 0.00 -0.62
10 2.0234 0.00 -0.17 0.00 0.01
11 2.0234 0.00 0.06 0.00 0.07
12 2.0235 0.00 0.11 0.00 0.09
13 2.0235 0.00 -0.23 0.00 -0.03
14 3.0665 0.00 -0.02 0.00 -0.09
15 3.0665 0.00 0.00 0.00 0.03
16 3.0666 0.00 -0.08 0.00 -0.07
17 3.0666 0.00 0.19 0.00 -0.01
18 3.0745 0.00 0.02 0.00 -0.04
19 3.0746 0.00 -0.06 0.00 -0.02
20 3.0746 0.00 0.16 0.00 0.05
21 3.0746 0.00 -0.02 0.00 -0.15
22 4.1015 0.00 -0.51 0.00 0.17
23 4.1124 0.00 0.21 0.00 0.01
24 4.1124 0.00 -0.01 0.00 0.02
25 4.1125 0.00 -0.03 0.00 0.13
26 4.1125 0.00 -0.11 0.00 0.16
27 4.1314 0.00 -0.07 0.00 -0.21
28 4.1315 0.00 0.17 0.00 0.16
29 4.1315 0.00 -0.09 0.00 0.19
30 4.1778 0.00 0.02 0.00 -0.14
31 4.1778 0.00 0.21 0.00 0.04
32 4.1779 0.00 0.24 0.00 -0.13
33 4.1779 0.00 -0.09 0.00 -0.02
34 4.1890 0.00 0.48 0.00 -0.51
35 4.2106 0.00 -0.07 0.00 0.05
36 4.2106 0.00 0.22 0.00 -0.20
37 4.2107 0.00 0.09 0.00 0.00
38 4.2107 0.00 -0.00 0.00 0.00
39 4.8768 0.00 0.49 0.00 0.46
40 5.0162 0.00 0.07 0.00 -0.13
41 5.0163 0.00 0.19 0.00 0.07
42 5.0163 0.00 -0.18 0.00 -0.02
43 5.0163 0.00 -0.12 0.00 -0.09
44 5.0163 0.00 0.07 0.00 -0.06
45 5.0163 0.00 -0.03 0.00 -0.02
46 5.0163 0.00 -0.07 0.00 0.05
47 5.0873 0.00 0.01 0.00 -0.11
48 5.0873 0.00 0.11 0.00 0.14
49 5.0873 0.00 -0.03 0.00 -0.00
50 5.0873 0.00 -0.01 0.00 0.36
51 5.0873 0.00 0.00 0.00 -0.08
52 5.0874 0.00 0.37 0.00 0.23
53 5.0874 0.00 -0.09 0.00 -0.06
54 5.0983 0.00 0.05 0.00 0.10
55 5.1037 0.00 -0.08 0.00 -0.09
56 5.1037 0.00 0.02 0.00 -0.00
57 5.1038 0.00 0.01 0.00 0.05
58 5.1038 0.00 0.18 0.00 -0.02
59 5.1062 0.00 0.06 0.00 -0.00
60 5.1119 0.00 -0.01 0.00 -0.03
61 5.1442 0.00 0.23 0.00 -0.51
62 5.1829 0.00 0.00 0.00 0.06
63 5.2401 0.00 -0.05 0.00 0.21
64 5.2401 0.00 0.09 0.00 -0.04
65 5.2401 0.00 -0.33 0.00 -0.17
66 5.2402 0.00 -0.23 0.00 -0.36
67 5.2566 0.00 -0.19 0.00 -0.18
68 5.2567 0.00 -0.26 0.00 0.08
69 6.0430 0.00 -0.40 0.00 0.11
70 6.0430 0.00 -0.01 0.00 -0.07
71 6.0430 0.00 -0.22 0.00 0.48
72 6.0431 0.00 -0.10 0.00 0.37
73 6.0649 0.00 0.01 0.00 0.07
74 6.0649 0.00 0.00 0.00 -0.05
75 6.0649 0.00 0.24 0.00 -0.27
76 6.0650 0.00 -0.00 0.00 -0.03
77 6.0812 0.00 -0.41 0.00 0.13
78 6.0812 0.00 0.06 0.00 0.05
79 6.0813 0.00 -0.50 0.00 -0.00
80 6.1222 0.00 0.07 0.00 -0.27
81 6.1222 0.00 0.03 0.00 -0.13
82 6.1223 0.00 0.03 0.00 0.10
83 6.1223 0.00 -0.02 0.00 -0.18
84 6.2041 0.00 0.13 0.00 -0.02
85 6.2041 0.00 0.03 0.00 0.08
86 6.2041 0.00 0.09 0.00 0.03
87 6.2042 0.00 -0.01 0.00 -0.06
88 6.2068 0.00 0.00 0.00 -0.01
89 6.2069 0.00 -0.05 0.00 0.02
90 6.2092 0.00 -0.01 0.00 -0.00
91 6.2093 0.00 0.00 0.00 0.01
92 6.2093 0.00 -0.02 0.00 -0.01
93 7.1816 0.00 -0.01 0.00 -0.06
94 7.1816 0.00 -0.15 0.00 0.15
95 7.1816 0.00 0.07 0.00 -0.00
96 7.1981 0.00 0.29 0.00 0.02
97 7.1982 0.00 0.03 0.00 0.13
98 7.1982 0.00 0.04 0.00 -0.05
99 7.2691 0.00 0.22 0.00 -0.09
100 7.2691 0.00 -0.09 0.00 -0.01
101 7.2691 0.00 0.06 0.00 0.16
102 7.2692 0.00 0.18 0.00 0.11
103 7.2692 0.00 0.02 0.00 -0.05
104 7.2692 0.00 -0.07 0.00 -0.04
105 7.2827 0.00 0.08 0.00 -0.03
106 7.2827 0.00 0.06 0.00 -0.11
107 7.2828 0.00 -0.13 0.00 0.03
The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.
22KJ2 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 18.414 18.414 18.414 ecceobj 0.558 0.558 0.558 incobj 9.850 9.850 9.850 qmin 7.516 8.039 7.976 qmax 41.551 30.281 33.328 amean 20.209 18.482 19.352 amin 15.946 17.346 18.012 amax 24.554 19.285 20.878 emean 0.610 0.557 0.574 emin 0.508 0.530 0.547 emax 0.692 0.572 0.596 imean 9.379 8.961 12.202 imin 8.400 8.451 9.286 imax 10.670 9.793 15.184 excite_mean 0.632 0.579 0.612 fracstop 0.007 0.001 0.002 cjmean 2.780 2.917 2.843 libcent 0 -180.0 -180.0 -180.0 libamp 0 -180.0 -180.0 -180.0 libcent 1 -180.0 -180.0 -180.0 libamp 1 -180.0 -180.0 -180.0 libcent 2 -180.0 -180.0 -180.0 libamp 2 -180.0 -180.0 -180.0 libcent 3 -180.0 -180.0 -180.0 libamp 3 -180.0 -180.0 -180.0 libcent 4 -180.0 -180.0 -180.0 libamp 4 -180.0 -180.0 -180.0 kozaimean 216.0 101.0 110.9 kozaiamp 128.7 20.2 27.3