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: 21JK10 # Created Fri Nov 22 02:11:09 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 107 observations of 107 # Arc: 8.46y # First observation: 2014/12/29 # Last observation: 2023/06/16 # Chi-squared of fit: 95.60 DOF: 208 RMS: 0.17 # Min/Max residuals: -0.57 0.54 # Exact a, adot, b, bdot, g, gdot: 2.957678E-05 1.375365E-01 1.120322E-06 4.378566E-03 7.288735E-02 -5.604852E-03 # Covariance matrix: 7.8233E-14 -2.6733E-14 -5.3695E-16 -9.1621E-16 6.1585E-15 -1.2011E-14 -2.6733E-14 1.9903E-14 -2.3540E-15 8.0667E-16 8.9611E-15 1.1043E-14 -5.3695E-16 -2.3540E-15 5.9164E-14 -9.5444E-15 -1.0365E-14 -6.1259E-16 -9.1621E-16 8.0667E-16 -9.5444E-15 2.0987E-15 -4.7206E-17 5.4080E-16 6.1585E-15 8.9611E-15 -1.0365E-14 -4.7206E-17 5.2916E-14 1.0946E-15 -1.2011E-14 1.1043E-14 -6.1259E-16 5.4080E-16 1.0946E-15 7.2436E-15 # lat0 lon0 xBary yBary zBary JD0 17.205005 -174.145913 0.981792 0.008187 -0.025901 2457021.114535 # Heliocentric elements and errors Epoch: 2457020.5000 = 2014/12/29 Mean Anomaly: 342.78543 +/- 0.325 Argument of Peri: 110.65160 +/- 0.000 Long of Asc Node: 101.92648 +/- 0.000 Inclination: 17.38939 +/- 0.000 Eccentricity: 0.27095475 +/- 0.0001 Semi-Major Axis: 18.34703749 +/- 0.0001 Time of Perihelion: 2458393.0909 +/- 25.9 Perihelion: 13.37582051 +/- 0.0009 Aphelion: 23.31825446 +/- 0.0009 Period (y) 78.5882 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -13.16747159 +/- 0.0001 Ecliptic Y -0.36237318 +/- 0.0000 Ecliptic Z 4.05819288 +/- 0.0000 Ecliptic XDOT 0.00077140 +/- 0.0000 Ecliptic YDOT -0.00511906 +/- 0.0000 Ecliptic ZDOT 0.00009493 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 13.78346089 +/- 0.0000 Geocenter to KBO 13.71984185 +/- 0.0001 # Hcoef: 10.75
The following table shows the complete astrometric record for 21JK10. 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 (21JK10) followed by the observatory code and reference code for the source of the astrometry.
2014 12 29.613757 12 49 10.040 +13 27 06.51 22.6G 21JK10 F51 C~4nNi 2014 12 29.626697 12 49 10.139 +13 27 07.21 22.6G 21JK10 F51 C~4nNi 2014 12 29.639786 12 49 10.187 +13 27 07.53 22.1G 21JK10 F51 C~4nNi 2014 12 29.652959 12 49 10.291 +13 27 08.27 22.1G 21JK10 F51 C~4nNi 2015 01 28.520413 12 50 20.974 +14 02 25.48 22.6G 21JK10 F51 C~4nNi 2015 01 28.532098 12 50 20.954 +14 02 26.50 22.4G 21JK10 F51 C~4nNi 2015 01 28.543788 12 50 20.927 +14 02 27.57 22.1G 21JK10 F51 C~4nNi 2015 01 28.555470 12 50 20.906 +14 02 28.64 22.3G 21JK10 F51 C~4nNi 2015 01 30.634753 12 50 16.375 +14 05 43.68 22.4G 21JK10 F51 C~4nNi 2015 01 30.641670 12 50 16.350 +14 05 44.42 22.2G 21JK10 F51 C~4nNi 2015 01 30.648561 12 50 16.318 +14 05 45.09 22.2G 21JK10 F51 C~4nNi 2015 01 30.655522 12 50 16.328 +14 05 45.96 22.5G 21JK10 F51 C~4nNi 2015 02 18.444749 12 48 43.858 +14 37 48.29 21.7G 21JK10 F51 C~4nNi 2015 02 18.455830 12 48 43.773 +14 37 49.71 22.4G 21JK10 F51 C~4nNi 2015 02 18.466623 12 48 43.690 +14 37 50.86 21.5G 21JK10 F51 C~4nNi 2015 02 18.477427 12 48 43.617 +14 37 51.63 22.1G 21JK10 F51 C~4nNi 2016 01 12.579418 13 20 42.878 +10 29 55.50 22.4G 21JK10 F51 C~4nNi 2016 01 12.591774 13 20 42.928 +10 29 55.95 23.2G 21JK10 F51 C~4nNi 2016 01 12.604108 13 20 42.993 +10 29 56.94 22.3G 21JK10 F51 C~4nNi 2016 01 12.616432 13 20 43.033 +10 29 57.58 22.7G 21JK10 F51 C~4nNi 2017 03 19.558245 13 48 49.451 +08 34 45.91 22.3G 21JK10 F51 C~4nNi 2017 03 19.569921 13 48 49.349 +08 34 46.85 22.4G 21JK10 F51 C~4nNi 2017 03 19.581642 13 48 49.215 +08 34 48.64 22.7G 21JK10 F51 C~4nNi 2017 03 19.593390 13 48 49.100 +08 34 49.39 22.4G 21JK10 F51 C~4nNi 2017 03 27.555925 13 47 24.717 +08 46 58.27 22.1G 21JK10 F51 C~4nNi 2017 03 27.567282 13 47 24.594 +08 46 59.00 22.6G 21JK10 F51 C~4nNi 2017 03 27.578659 13 47 24.464 +08 47 00.21 22.2G 21JK10 F51 C~4nNi 2019 02 08.568243 14 53 47.443 +00 14 55.85 21.9G 21JK10 F51 C~4nNi 2019 02 08.579944 14 53 47.483 +00 14 57.08 22.0G 21JK10 F51 C~4nNi 2019 02 08.591669 14 53 47.555 +00 14 57.18 22.8G 21JK10 F51 C~4nNi 2019 02 08.603443 14 53 47.574 +00 14 57.88 21.8G 21JK10 F51 C~4nNi 2019 02 09.589066 14 53 51.485 +00 15 44.25 22.5G 21JK10 F51 C~4nNi 2019 02 09.601374 14 53 51.523 +00 15 44.92 22.4G 21JK10 F51 C~4nNi 2019 04 02.536966 14 50 51.654 +01 15 43.43 21.8G 21JK10 F51 C~4nNi 2019 04 02.548573 14 50 51.540 +01 15 44.44 21.8G 21JK10 F51 C~4nNi 2019 04 02.560148 14 50 51.434 +01 15 45.06 22.3G 21JK10 F51 C~4nNi 2019 04 02.571748 14 50 51.320 +01 15 45.93 21.9G 21JK10 F51 C~4nNi 2019 04 09.561767 14 49 38.758 +01 24 21.05 22.0G 21JK10 F51 C~4nNi 2019 04 09.573639 14 49 38.629 +01 24 22.02 22.1G 21JK10 F51 C~4nNi 2019 05 06.353624 14 44 12.320 +01 50 22.10 21.5G 21JK10 F51 C~4nNi 2019 05 06.365696 14 44 12.144 +01 50 22.52 21.7G 21JK10 F51 C~4nNi 2019 05 06.377772 14 44 11.994 +01 50 23.27 21.9G 21JK10 F51 C~4nNi 2019 05 06.389905 14 44 11.834 +01 50 23.83 22.0G 21JK10 F51 C~4nNi 2019 05 10.495116 14 43 19.692 +01 52 59.30 21.6G 21JK10 F51 C~4nNi 2019 05 10.507207 14 43 19.532 +01 52 59.68 21.8G 21JK10 F51 C~4nNi 2019 05 10.519303 14 43 19.381 +01 53 00.22 21.7G 21JK10 F51 C~4nNi 2019 05 10.531468 14 43 19.228 +01 53 00.49 21.9G 21JK10 F51 C~4nNi 2019 05 11.414272 14 43 08.122 +01 53 30.35 22.1G 21JK10 F51 C~4nNi 2019 05 11.424809 14 43 08.002 +01 53 30.89 21.4G 21JK10 F51 C~4nNi 2019 05 11.435369 14 43 07.845 +01 53 31.05 22.1G 21JK10 F51 C~4nNi 2020 05 11.318032 15 15 05.996 -01 58 32.91 22.0G 21JK10 F51 C~4nNi 2020 05 11.328691 15 15 05.839 -01 58 32.58 22.0G 21JK10 F51 C~4nNi 2020 05 11.339279 15 15 05.708 -01 58 32.31 22.0G 21JK10 F51 C~4nNi 2020 05 11.349942 15 15 05.562 -01 58 31.77 21.8G 21JK10 F51 C~4nNi 2020 05 15.416846 15 14 13.212 -01 56 21.78 21.3G 21JK10 F51 C~4nNi 2020 05 15.429159 15 14 13.043 -01 56 21.50 21.7G 21JK10 F51 C~4nNi 2020 05 26.368417 15 11 55.358 -01 52 30.41 21.7G 21JK10 F51 C~4nNi 2020 05 26.378728 15 11 55.236 -01 52 30.42 22.1G 21JK10 F51 C~4nNi 2020 05 26.389088 15 11 55.102 -01 52 30.37 22.2G 21JK10 F51 C~4nNi 2020 05 26.399425 15 11 54.972 -01 52 30.23 21.8G 21JK10 F51 C~4nNi 2021 04 09.544688 15 52 53.471 -06 08 22.32 22.1G 21JK10 F51 C~4nNi 2021 04 09.556725 15 52 53.349 -06 08 21.64 21.9G 21JK10 F51 C~4nNi 2021 04 09.568731 15 52 53.254 -06 08 21.09 21.8G 21JK10 F51 C~4nNi 2021 04 09.582977 15 52 53.136 -06 08 20.47 21.7G 21JK10 F51 C~4nNi 2021 04 15.530719 15 51 59.044 -06 03 16.94 22.1G 21JK10 F51 C~4nNi 2021 04 15.541122 15 51 58.945 -06 03 16.25 22.1G 21JK10 F51 C~4nNi 2021 04 15.551505 15 51 58.841 -06 03 15.81 21.9G 21JK10 F51 C~4nNi 2021 04 15.561913 15 51 58.730 -06 03 15.28 21.8G 21JK10 F51 C~4nNi 2021 05 10.475507 15 47 11.650 -05 45 15.89 22.2w 21JK10 F51 C~4nNi 2021 05 10.488179 15 47 11.480 -05 45 15.54 22.7w 21JK10 F51 C~4nNi 2021 05 10.501615 15 47 11.310 -05 45 15.11 22.3w 21JK10 F51 C~4nNi 2021 05 14.27390 15 46 22.73 -05 43 14.6 21.2G 21JK10 807 C~4nNi 2021 05 14.28093 15 46 22.63 -05 43 14.1 21.5G 21JK10 807 C~4nNi 2021 05 14.28777 15 46 22.53 -05 43 14.1 21.3G 21JK10 807 C~4nNi 2021 05 15.465689 15 46 07.253 -05 42 39.86 21.6G 21JK10 F51 C~4nNi 2021 05 15.477471 15 46 07.111 -05 42 39.41 21.7G 21JK10 F51 C~4nNi 2021 05 15.489274 15 46 06.960 -05 42 38.84 21.5G 21JK10 F51 C~4nNi 2021 05 15.500963 15 46 06.800 -05 42 38.50 21.7G 21JK10 F51 C~4nNi 2021 05 16.394089 15 45 55.212 -05 42 13.14 22.1G 21JK10 F51 C~4nNi 2021 05 16.408458 15 45 55.031 -05 42 13.16 22.1G 21JK10 F51 C~4nNi 2021 05 16.422799 15 45 54.853 -05 42 12.67 21.9G 21JK10 F51 C~4nNi 2021 05 16.437171 15 45 54.644 -05 42 12.03 22.2G 21JK10 F51 C~4nNi 2021 05 18.276002 15 45 30.76 -05 41 23.6 21.2G 21JK10 I52 C~4nNi 2021 05 18.28009 15 45 30.67 -05 41 23.3 21JK10 691 C~4nNi 2021 05 18.285214 15 45 30.60 -05 41 23.5 21.1G 21JK10 I52 C~4nNi 2021 05 18.294427 15 45 30.45 -05 41 23.0 20.9G 21JK10 I52 C~4nNi 2021 05 18.29462 15 45 30.50 -05 41 22.8 21JK10 691 C~4nNi 2021 05 18.30971 15 45 30.29 -05 41 21.8 21JK10 691 C~4nNi 2021 06 07.369081 15 41 16.196 -05 36 55.39 22.0w 21JK10 F51 C~4qtS 2021 06 07.380274 15 41 16.074 -05 36 55.11 22.1w 21JK10 F51 C~4qtS 2021 06 07.391457 15 41 15.904 -05 36 55.27 22.0w 21JK10 F51 C~4qtS 2021 07 07.313134 15 36 30.361 -05 47 34.34 22.3w 21JK10 F51 C~4u3k 2021 07 07.326126 15 36 30.265 -05 47 34.94 22.0w 21JK10 F51 C~4u3k 2021 07 07.339097 15 36 30.164 -05 47 35.89 22.3w 21JK10 F51 C~4u3k 2021 07 07.352065 15 36 30.099 -05 47 35.97 22.1w 21JK10 F51 C~4u3k 2022 06 04.389917 16 13 24.334 -09 11 24.28 21.5w 21JK10 F52 C~5fvm 2022 06 04.410454 16 13 24.076 -09 11 24.27 21.8w 21JK10 F52 C~5fvm 2022 06 04.420759 16 13 23.923 -09 11 24.15 22.0w 21JK10 F52 C~5fvm 2022 06 20.347814 16 10 08.742 -09 12 11.04 21.8w 21JK10 F52 C~5hem 2022 06 20.360669 16 10 08.591 -09 12 11.53 21.9w 21JK10 F52 C~5hem 2022 06 20.388005 16 10 08.272 -09 12 11.69 22.0w 21JK10 F52 C~5hem 2023 05 15.440002 16 48 56.260 -12 32 36.06 22.0w 21JK10 F51 C~6oJM 2023 05 15.462015 16 48 55.984 -12 32 35.17 21.9w 21JK10 F51 C~6oJM 2023 05 15.473029 16 48 55.860 -12 32 35.20 22.0w 21JK10 F51 C~6oJM 2023 06 16.409789 16 42 03.642 -12 29 35.58 21.7w 21JK10 F51 C~6rDr 2023 06 16.421626 16 42 03.492 -12 29 35.74 21.9w 21JK10 F51 C~6rDr 2023 06 16.433432 16 42 03.315 -12 29 35.61 21.8w 21JK10 F51 C~6rDr
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 0.04 0.00 -0.05
2 0.0000 0.00 0.29 0.00 0.06
3 0.0001 0.00 -0.23 0.00 -0.22
4 0.0001 0.00 0.08 0.00 -0.08
5 0.0819 0.00 -0.06 0.00 0.06
6 0.0819 0.00 0.01 0.00 -0.01
7 0.0819 0.00 -0.03 0.00 -0.03
8 0.0820 0.00 0.03 0.00 -0.04
9 0.0877 0.00 0.17 0.00 -0.14
10 0.0877 0.00 0.08 0.00 -0.06
11 0.0877 0.00 -0.12 0.00 -0.04
12 0.0877 0.00 0.31 0.00 0.17
13 0.1392 0.00 -0.12 0.00 0.05
14 0.1392 0.00 -0.16 0.00 0.28
15 0.1392 0.00 -0.20 0.00 0.27
16 0.1393 0.00 -0.08 0.00 -0.12
17 1.0376 0.00 0.25 0.00 -0.09
18 1.0376 0.00 0.09 0.00 -0.31
19 1.0376 0.00 0.17 0.00 0.00
20 1.0377 0.00 -0.13 0.00 -0.03
21 2.2202 0.00 -0.28 0.00 -0.05
22 2.2203 0.00 -0.01 0.00 -0.20
23 2.2203 0.00 -0.22 0.00 0.48
24 2.2203 0.00 -0.15 0.00 0.13
25 2.2421 0.00 -0.08 0.00 0.23
26 2.2422 0.00 0.02 0.00 -0.04
27 2.2422 0.00 0.01 0.00 0.16
28 4.1121 0.00 0.02 0.00 -0.32
29 4.1122 0.00 -0.06 0.00 0.37
30 4.1122 0.00 0.33 0.00 -0.08
31 4.1122 0.00 -0.07 0.00 0.07
32 4.1149 0.00 -0.02 0.00 -0.10
33 4.1150 0.00 -0.12 0.00 -0.02
34 4.2571 0.00 -0.14 0.00 0.03
35 4.2572 0.00 -0.10 0.00 0.17
36 4.2572 0.00 0.06 0.00 -0.09
37 4.2572 0.00 0.10 0.00 -0.09
38 4.2764 0.00 -0.00 0.00 -0.09
39 4.2764 0.00 0.05 0.00 0.03
40 4.3497 0.00 0.13 0.00 -0.18
41 4.3498 0.00 -0.16 0.00 -0.25
42 4.3498 0.00 -0.05 0.00 -0.00
43 4.3498 0.00 -0.09 0.00 0.06
44 4.3611 0.00 0.02 0.00 0.05
45 4.3611 0.00 -0.04 0.00 0.01
46 4.3611 0.00 0.02 0.00 0.13
47 4.3612 0.00 0.07 0.00 -0.01
48 4.3636 0.00 0.05 0.00 0.01
49 4.3636 0.00 0.28 0.00 0.20
50 4.3636 0.00 -0.04 0.00 0.01
51 5.3654 0.00 0.12 0.00 0.03
52 5.3654 0.00 -0.14 0.00 -0.01
53 5.3654 0.00 -0.02 0.00 -0.11
54 5.3655 0.00 -0.11 0.00 0.06
55 5.3766 0.00 0.08 0.00 0.08
56 5.3766 0.00 -0.04 0.00 0.00
57 5.4066 0.00 -0.03 0.00 0.20
58 5.4066 0.00 0.07 0.00 0.06
59 5.4066 0.00 -0.00 0.00 -0.02
60 5.4067 0.00 -0.02 0.00 -0.01
61 6.2777 0.00 0.02 0.00 0.06
62 6.2777 0.00 -0.24 0.00 0.12
63 6.2778 0.00 -0.09 0.00 0.05
64 6.2778 0.00 0.01 0.00 -0.07
65 6.2941 0.00 -0.11 0.00 -0.04
66 6.2941 0.00 -0.04 0.00 0.13
67 6.2941 0.00 -0.05 0.00 0.05
68 6.2942 0.00 -0.16 0.00 0.06
69 6.3624 0.00 0.04 0.00 0.18
70 6.3624 0.00 -0.03 0.00 0.10
71 6.3625 0.00 0.05 0.00 0.07
72 6.3728 0.00 0.31 0.00 -0.57
73 6.3728 0.00 0.20 0.00 -0.28
74 6.3728 0.00 0.05 0.00 -0.49
75 6.3760 0.00 -0.17 0.00 -0.26
76 6.3761 0.00 0.05 0.00 -0.15
77 6.3761 0.00 0.13 0.00 0.08
78 6.3761 0.00 0.05 0.00 0.08
79 6.3786 0.00 -0.14 0.00 0.22
80 6.3786 0.00 0.00 0.00 -0.20
81 6.3787 0.00 0.19 0.00 -0.10
82 6.3787 0.00 -0.08 0.00 0.14
83 6.3837 0.00 0.43 0.00 -0.39
84 6.3838 0.00 -0.11 0.00 -0.20
85 6.3838 0.00 -0.13 0.00 -0.52
86 6.3838 0.00 -0.55 0.00 -0.26
87 6.3838 0.00 0.23 0.00 -0.07
88 6.3838 0.00 0.08 0.00 0.54
89 6.4388 0.00 -0.03 0.00 -0.03
90 6.4388 0.00 0.19 0.00 0.25
91 6.4388 0.00 -0.31 0.00 0.08
92 6.5207 0.00 0.05 0.00 0.17
93 6.5208 0.00 -0.07 0.00 0.13
94 6.5208 0.00 -0.26 0.00 -0.27
95 6.5208 0.00 0.08 0.00 0.20
96 7.4299 0.00 -0.02 0.00 0.10
97 7.4300 0.00 0.17 0.00 -0.01
98 7.4300 0.00 -0.09 0.00 0.05
99 7.4736 0.00 0.06 0.00 0.21
100 7.4736 0.00 0.05 0.00 -0.13
101 7.4737 0.00 0.04 0.00 0.04
102 8.3746 0.00 -0.02 0.00 -0.28
103 8.3747 0.00 -0.08 0.00 0.26
104 8.3747 0.00 0.11 0.00 0.06
105 8.4621 0.00 0.10 0.00 0.11
106 8.4622 0.00 0.15 0.00 0.02
107 8.4622 0.00 -0.21 0.00 0.22
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.
21JK10 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 18.273 18.273 18.273 ecceobj 0.264 0.264 0.264 incobj 17.387 17.387 17.387 qmin 13.441 13.441 13.441 qmax 23.104 23.104 23.105 amean 18.273 18.273 18.273 amin 18.273 18.273 18.273 amax 18.273 18.273 18.273 emean 0.264 0.264 0.264 emin 0.264 0.264 0.264 emax 0.264 0.264 0.264 imean 15.817 15.817 15.817 imin 15.817 15.817 15.817 imax 15.817 15.817 15.817 excite_mean 0.380 0.380 0.380 fracstop 0.000 0.000 0.000 cjmean 3.093 3.093 3.093 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 110.7 110.7 110.7 kozaiamp 0.0 0.0 0.0