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: 690456 # Created Sun Dec 22 02:07:54 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 73 observations of 73 # Arc: 10.08y # First observation: 2014/04/09 # Last observation: 2024/05/07 # Chi-squared of fit: 57.93 DOF: 140 RMS: 0.16 # Min/Max residuals: -0.59 0.57 # Exact a, adot, b, bdot, g, gdot: 2.008357E-05 4.012467E-02 1.695120E-06 4.526054E-03 3.249710E-02 -6.830449E-03 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 -18.957243 -167.961322 -0.128295 -0.322358 -0.938701 2456756.903658 # Heliocentric elements and errors Epoch: 2456756.5000 = 2014/04/09 Mean Anomaly: 339.75193 +/- 0.000 Argument of Peri: 328.74922 +/- 0.000 Long of Asc Node: 262.02358 +/- 0.000 Inclination: 19.49617 +/- 0.000 Eccentricity: 0.31660552 +/- 0.0000 Semi-Major Axis: 43.84911661 +/- 0.0000 Time of Perihelion: 2462721.6425 +/- 0.0 Perihelion: 29.96624432 +/- 0.0000 Aphelion: 57.73198890 +/- 0.0000 Period (y) 290.3685 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -29.40825002 +/- 0.0000 Ecliptic Y -6.40115073 +/- 0.0000 Ecliptic Z -9.99657881 +/- 0.0000 Ecliptic XDOT 0.00111069 +/- 0.0000 Ecliptic YDOT -0.00322173 +/- 0.0000 Ecliptic ZDOT 0.00054771 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 31.71368296 +/- 0.0000 Geocenter to KBO 30.77210897 +/- 0.0000 # Hcoef: 6.76
The following table shows the complete astrometric record for 690456. 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 (690456) followed by the observatory code and reference code for the source of the astrometry.
2014 04 09.40288 12 12 48.676 -22 07 06.00 22.0G 690456 F51 C~346S 2014 04 09.41412 12 12 48.621 -22 07 05.55 21.4G 690456 F51 C~346S 2014 04 09.42535 12 12 48.531 -22 07 05.00 22.0G 690456 F51 C~346S 2014 04 09.43658 12 12 48.484 -22 07 04.74 21.6G 690456 F51 C~346S 2014 05 05.31632 12 10 37.230 -21 46 00.77 22.0G 690456 F51 C~346S 2014 05 05.32858 12 10 37.190 -21 46 00.41 21.2G 690456 F51 C~346S 2014 05 05.33948 12 10 37.138 -21 45 59.47 22.4G 690456 F51 C~346S 2014 05 07.30071 12 10 29.222 -21 44 19.44 21.5G 690456 F51 C~346S 2014 05 07.31154 12 10 29.183 -21 44 18.89 20.8G 690456 F51 C~346S 2014 05 07.32226 12 10 29.113 -21 44 18.30 21.1G 690456 F51 C~346T 2014 05 07.33297 12 10 29.067 -21 44 17.58 21.5G 690456 F51 C~346T 2014 05 19.27842 12 09 48.792 -21 34 15.23 21.9G 690456 F51 C~346T 2014 05 19.28966 12 09 48.755 -21 34 14.78 21.7G 690456 F51 C~346T 2014 05 19.30089 12 09 48.745 -21 34 14.27 22.1G 690456 F51 C~346T 2014 05 19.31211 12 09 48.700 -21 34 13.78 21.5G 690456 F51 C~346T 2015 12 29.66195 12 38 04.855 -23 29 41.76 21.3G 690456 F51 C~346T 2016 01 13.59660 12 38 19.480 -23 39 52.31 21.4G 690456 F51 C~346T 2016 01 13.60697 12 38 19.488 -23 39 52.72 21.9G 690456 F51 C~346T 2016 01 13.61735 12 38 19.502 -23 39 53.43 21.8G 690456 F51 C~346T 2016 02 12.54307 12 37 22.794 -23 50 32.48 21.9G 690456 F51 C~346T 2016 02 12.55405 12 37 22.737 -23 50 32.61 21.8G 690456 F51 C~346T 2016 02 12.56504 12 37 22.705 -23 50 32.71 21.9G 690456 F51 C~346T 2016 02 12.57600 12 37 22.657 -23 50 32.85 21.9G 690456 F51 C~346T 2016 02 20.49325 12 36 50.749 -23 50 53.43 21.9G 690456 F51 C~346T 2016 02 20.50435 12 36 50.707 -23 50 53.57 22.0G 690456 F51 C~346T 2016 02 20.51543 12 36 50.673 -23 50 53.51 21.5G 690456 F51 C~346T 2016 02 20.52652 12 36 50.631 -23 50 54.03 21.3G 690456 F51 C~346T 2016 03 03.45620 12 35 52.307 -23 49 24.83 21.7G 690456 F51 C~346T 2016 03 03.46737 12 35 52.235 -23 49 24.50 22.0G 690456 F51 C~346T 2016 03 03.47846 12 35 52.180 -23 49 24.41 21.8G 690456 F51 C~346T 2016 03 03.48960 12 35 52.126 -23 49 24.27 21.9G 690456 F51 C~346T 2016 04 04.39623 12 32 42.420 -23 34 44.99 21.4G 690456 F51 C~346T 2016 04 04.40653 12 32 42.356 -23 34 44.72 21.8G 690456 F51 C~346T 2016 04 04.41684 12 32 42.304 -23 34 44.60 21.9G 690456 F51 C~346T 2016 04 04.42714 12 32 42.213 -23 34 43.65 21.5G 690456 F51 C~346T 2016 04 26.32879 12 30 35.384 -23 18 09.70 21.9G 690456 F51 C~346T 2016 04 26.33979 12 30 35.308 -23 18 08.87 21.8G 690456 F51 C~346T 2016 04 26.35076 12 30 35.253 -23 18 08.48 22.0G 690456 F51 C~346T 2016 04 26.36177 12 30 35.213 -23 18 08.35 21.2G 690456 F51 C~346T 2017 01 13.60271 12 48 09.250 -24 17 27.86 21.9G 690456 F51 C~346T 2017 01 13.61497 12 48 09.288 -24 17 28.36 21.2G 690456 F51 C~346T 2017 01 13.62716 12 48 09.293 -24 17 28.64 21.6G 690456 F51 C~346T 2017 01 13.63938 12 48 09.264 -24 17 29.02 22.2G 690456 F51 C~346T 2017 03 20.45914 12 44 20.379 -24 22 42.03 21.9G 690456 F51 C~346T 2017 03 20.47087 12 44 20.288 -24 22 41.49 21.7G 690456 F51 C~346T 2017 03 20.48260 12 44 20.225 -24 22 41.33 21.2G 690456 F51 C~346T 2017 03 20.49433 12 44 20.187 -24 22 40.39 21.0G 690456 F51 C~346T 2017 05 27.26708 12 38 25.406 -23 32 20.92 21.9G 690456 F51 C~346T 2017 05 27.27810 12 38 25.373 -23 32 20.49 21.8G 690456 F51 C~346T 2017 05 27.28911 12 38 25.351 -23 32 19.88 21.6G 690456 F51 C~346T 2017 05 27.30014 12 38 25.313 -23 32 19.24 21.8G 690456 F51 C~346T 2020 05 26.27922 13 09 22.896 -25 20 59.78 21.8w 690456 F51 C~3vRG 2020 05 26.28885 13 09 22.863 -25 20 59.33 21.7w 690456 F51 C~3vRG 2020 05 26.29845 13 09 22.826 -25 20 58.87 21.6w 690456 F51 C~3vRG 2021 03 19.455175 13 26 44.826 -26 37 09.84 21.3w 690456 F51 C~4gVA 2021 03 19.466142 13 26 44.766 -26 37 09.93 21.4w 690456 F51 C~4gVA 2021 03 19.477097 13 26 44.719 -26 37 09.45 21.4w 690456 F51 C~4gVA 2022 03 02.533598 13 39 09.237 -27 06 08.47 21.5w 690456 F52 C~5S0g 2022 03 02.544424 13 39 09.181 -27 06 08.32 21.5w 690456 F52 C~5S0g 2022 03 02.555220 13 39 09.144 -27 06 08.32 21.6w 690456 F52 C~5S0g 2022 03 02.566009 13 39 09.102 -27 06 08.16 21.7w 690456 F52 C~5S0g 2022 05 09.322436 13 32 30.098 -26 34 52.84 21.5w 690456 F52 C~5aaL 2022 05 09.332612 13 32 30.044 -26 34 52.43 21.3w 690456 F52 C~5aaL 2022 05 09.342796 13 32 29.985 -26 34 52.11 21.5w 690456 F52 C~5aaL 2022 05 09.352983 13 32 29.930 -26 34 51.39 21.5w 690456 F52 C~5aaL 2023 05 10.315170 13 43 34.639 -26 59 29.93 21.9w 690456 F52 C~6n2I 2023 05 10.324671 13 43 34.598 -26 59 29.06 21.7w 690456 F52 C~6n2I 2023 05 10.334169 13 43 34.532 -26 59 28.78 21.5w 690456 F52 C~6n2I 2023 05 10.343672 13 43 34.475 -26 59 28.37 21.6w 690456 F52 C~6n2I 2024 05 07.363024 13 55 06.885 -27 23 08.40 21.6w 690456 F51 C~816t 2024 05 07.372769 13 55 06.811 -27 23 07.79 21.5w 690456 F51 C~816t 2024 05 07.382512 13 55 06.754 -27 23 07.36 21.5w 690456 F51 C~816t 2024 05 07.392249 13 55 06.699 -27 23 06.93 21.7w 690456 F51 C~816t
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 -0.07 0.00 0.14
2 0.0000 0.00 0.11 0.00 0.09
3 0.0001 0.00 -0.25 0.00 0.14
4 0.0001 0.00 0.04 0.00 -0.10
5 0.0709 0.00 -0.02 0.00 -0.07
6 0.0710 0.00 0.16 0.00 -0.34
7 0.0710 0.00 0.08 0.00 0.04
8 0.0764 0.00 0.16 0.00 -0.04
9 0.0764 0.00 0.24 0.00 -0.05
10 0.0764 0.00 -0.16 0.00 -0.00
11 0.0765 0.00 -0.19 0.00 0.17
12 0.1092 0.00 -0.12 0.00 0.12
13 0.1092 0.00 -0.18 0.00 0.01
14 0.1092 0.00 0.15 0.00 -0.03
15 0.1093 0.00 -0.04 0.00 -0.10
16 1.7228 0.00 0.11 0.00 -0.13
17 1.7637 0.00 -0.35 0.00 0.28
18 1.7637 0.00 -0.21 0.00 0.24
19 1.7638 0.00 0.02 0.00 -0.11
20 1.8457 0.00 0.15 0.00 0.03
21 1.8457 0.00 -0.08 0.00 -0.03
22 1.8458 0.00 0.06 0.00 -0.06
23 1.8458 0.00 -0.04 0.00 -0.12
24 1.8675 0.00 -0.14 0.00 0.05
25 1.8675 0.00 -0.02 0.00 -0.10
26 1.8675 0.00 0.23 0.00 -0.05
27 1.8676 0.00 0.35 0.00 -0.59
28 1.9002 0.00 -0.01 0.00 -0.13
29 1.9002 0.00 -0.17 0.00 0.05
30 1.9003 0.00 -0.09 0.00 -0.01
31 1.9003 0.00 0.01 0.00 -0.01
32 1.9877 0.00 -0.07 0.00 0.11
33 1.9877 0.00 -0.06 0.00 -0.03
34 1.9877 0.00 0.13 0.00 -0.32
35 1.9877 0.00 -0.26 0.00 0.22
36 2.0477 0.00 0.08 0.00 0.02
37 2.0477 0.00 -0.17 0.00 0.31
38 2.0478 0.00 -0.11 0.00 0.15
39 2.0478 0.00 0.18 0.00 -0.26
40 2.7658 0.00 -0.32 0.00 -0.01
41 2.7658 0.00 0.22 0.00 -0.07
42 2.7658 0.00 0.27 0.00 0.09
43 2.7659 0.00 -0.19 0.00 0.15
44 2.9461 0.00 0.08 0.00 -0.12
45 2.9461 0.00 -0.20 0.00 0.10
46 2.9461 0.00 -0.06 0.00 -0.05
47 2.9462 0.00 0.46 0.00 0.57
48 3.1317 0.00 -0.05 0.00 -0.02
49 3.1318 0.00 -0.07 0.00 -0.13
50 3.1318 0.00 0.08 0.00 -0.06
51 3.1318 0.00 -0.01 0.00 0.03
52 6.1297 0.00 -0.02 0.00 0.11
53 6.1297 0.00 0.06 0.00 0.08
54 6.1298 0.00 0.07 0.00 0.06
55 6.9433 0.00 -0.20 0.00 0.08
56 6.9434 0.00 -0.14 0.00 -0.21
57 6.9434 0.00 0.11 0.00 0.08
58 7.8963 0.00 0.11 0.00 -0.12
59 7.8963 0.00 -0.06 0.00 0.03
60 7.8964 0.00 0.06 0.00 0.03
61 7.8964 0.00 0.10 0.00 0.19
62 8.0819 0.00 -0.08 0.00 0.12
63 8.0819 0.00 0.02 0.00 0.05
64 8.0820 0.00 0.04 0.00 -0.11
65 8.0820 0.00 0.13 0.00 0.12
66 9.0839 0.00 -0.18 0.00 -0.24
67 9.0840 0.00 0.07 0.00 0.19
68 9.0840 0.00 -0.04 0.00 0.03
69 9.0840 0.00 -0.03 0.00 0.00
70 10.0779 0.00 0.09 0.00 -0.23
71 10.0779 0.00 -0.08 0.00 -0.05
72 10.0780 0.00 0.00 0.00 -0.05
73 10.0780 0.00 0.11 0.00 -0.05
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.
690456 quality flag:3 Type: CENTAURS CENTAURS CENTAURS axisobj 43.466 43.465 43.466 ecceobj 0.312 0.312 0.312 incobj 19.484 19.484 19.484 qmin 29.180 29.180 29.180 qmax 58.731 58.732 58.730 amean 43.725 43.725 43.725 amin 43.311 43.311 43.310 amax 44.245 44.244 44.247 emean 0.249 0.249 0.249 emin 0.079 0.079 0.079 emax 0.331 0.331 0.331 imean 23.418 23.422 23.415 imin 20.662 20.662 20.663 imax 27.250 27.253 27.241 excite_mean 0.474 0.474 0.474 fracstop 1.000 1.000 1.000 cjmean 2.823 2.823 2.823 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 88.3 88.3 88.3 kozaiamp 179.9 179.9 179.9