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: 576257 # Created Fri Nov 22 02:07:36 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 98 observations of 98 # Arc: 9.15y # First observation: 2012/04/14 # Last observation: 2021/06/08 # Chi-squared of fit: 109.93 DOF: 190 RMS: 0.19 # Min/Max residuals: -0.64 0.62 # Exact a, adot, b, bdot, g, gdot: 1.986240E-05 4.424367E-02 6.888833E-06 1.658763E-02 3.589460E-02 -4.325142E-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 21.412793 -131.073407 0.410768 0.335408 -0.855378 2456032.045746 # Heliocentric elements and errors Epoch: 2456032.5000 = 2012/04/15 Mean Anomaly: 344.60541 +/- 0.000 Argument of Peri: 75.22532 +/- 0.000 Long of Asc Node: 185.15436 +/- 0.000 Inclination: 29.09160 +/- 0.000 Eccentricity: 0.28676084 +/- 0.0000 Semi-Major Axis: 39.17751053 +/- 0.0000 Time of Perihelion: 2459862.6813 +/- 0.0 Perihelion: 27.94293470 +/- 0.0000 Aphelion: 50.41208637 +/- 0.0000 Period (y) 245.2243 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -17.95094060 +/- 0.0000 Ecliptic Y -19.97388233 +/- 0.0000 Ecliptic Z 10.17123588 +/- 0.0000 Ecliptic XDOT 0.00304439 +/- 0.0000 Ecliptic YDOT -0.00163379 +/- 0.0000 Ecliptic ZDOT 0.00105754 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 28.71671795 +/- 0.0000 Geocenter to KBO 27.85942773 +/- 0.0000 # Hcoef: 8.15
The following table shows the complete astrometric record for 576257. 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 (576257) followed by the observatory code and reference code for the source of the astrometry.
2012 04 14.54498 15 28 52.859 +03 11 52.63 22.2G 576257 F51 C~345v 2012 04 19.51692 15 28 25.642 +03 16 03.60 23.2G 576257 F51 C~345v 2012 04 24.58553 15 27 56.344 +03 20 05.27 21.8G 576257 F51 C~345v 2012 04 27.57940 15 27 38.433 +03 22 21.28 22.7G 576257 F51 C~345v 2012 05 14.36758 15 25 52.935 +03 33 09.63 22.7G 576257 F51 C~345v 2012 05 14.38016 15 25 52.848 +03 33 10.13 22.2G 576257 F51 C~345v 2012 05 14.39283 15 25 52.762 +03 33 10.52 22.0G 576257 F51 C~345v 2014 04 08.50046 15 51 09.252 +03 35 49.69 22.0G 576257 F51 C~345v 2014 04 08.51311 15 51 09.195 +03 35 50.18 22.4G 576257 F51 C~345v 2014 04 08.52582 15 51 09.154 +03 35 51.11 22.8G 576257 F51 C~345v 2014 04 08.53862 15 51 09.100 +03 35 51.77 22.8G 576257 F51 C~345v 2014 04 24.51740 15 49 48.372 +03 49 42.60 23.4G 576257 F51 C~345v 2014 05 04.40473 15 48 49.589 +03 57 05.05 22.4G 576257 F51 C~345v 2014 05 04.41672 15 48 49.542 +03 57 05.72 22.2G 576257 F51 C~345v 2014 05 04.42873 15 48 49.431 +03 57 06.39 23.0G 576257 F51 C~345v 2014 05 04.44079 15 48 49.388 +03 57 06.45 22.1G 576257 F51 C~345v 2014 07 01.36865 15 43 05.249 +04 12 18.97 23.1G 576257 F51 C~345v 2014 07 01.38067 15 43 05.213 +04 12 18.70 22.3G 576257 F51 C~345v 2014 07 01.40467 15 43 05.094 +04 12 18.59 21.8G 576257 F51 C~345v 2015 04 13.56420 16 01 48.473 +03 54 29.65 22.2G 576257 F51 C~345v 2015 05 13.38971 15 58 59.105 +04 17 13.05 22.1G 576257 F51 C~345v 2015 05 13.40232 15 58 59.027 +04 17 13.12 22.1G 576257 F51 C~345v 2015 05 13.41494 15 58 58.960 +04 17 13.82 22.6G 576257 F51 C~345v 2015 05 13.42761 15 58 58.872 +04 17 13.64 22.8G 576257 F51 C~345v 2015 06 06.47606 15 56 23.165 +04 26 56.54 22.7G 576257 F51 C~345v 2015 07 09.30587 15 53 30.027 +04 25 06.79 23.5G 576257 F51 C~345v 2015 07 09.31848 15 53 29.967 +04 25 06.35 22.6G 576257 F51 C~345v 2015 07 09.33107 15 53 29.920 +04 25 06.40 22.5G 576257 F51 C~345v 2015 07 09.34364 15 53 29.869 +04 25 05.99 22.5G 576257 F51 C~345v 2015 07 12.30726 15 53 18.784 +04 24 05.87 22.6G 576257 F51 C~345v 2015 07 12.31987 15 53 18.732 +04 24 05.74 22.9G 576257 F51 C~345v 2015 07 12.33245 15 53 18.686 +04 24 05.47 23.2G 576257 F51 C~345v 2015 07 12.34506 15 53 18.643 +04 24 05.18 22.9G 576257 F51 C~345v 2016 03 19.60586 16 14 06.707 +03 44 47.55 23.2G 576257 F51 C~345v 2016 03 19.61447 16 14 06.698 +03 44 47.75 22.8G 576257 F51 C~345v 2016 03 19.62314 16 14 06.692 +03 44 47.80 22.3G 576257 F51 C~345v 2016 03 19.63191 16 14 06.675 +03 44 49.28 22.1G 576257 F51 C~345v 2016 04 10.58237 16 13 04.200 +04 06 15.91 22.8G 576257 F51 C~345v 2016 04 10.59426 16 13 04.126 +04 06 16.66 22.4G 576257 F51 C~345v 2016 04 10.60612 16 13 04.081 +04 06 17.44 22.4G 576257 F51 C~345v 2016 04 10.61800 16 13 04.064 +04 06 17.79 22.2G 576257 F51 C~345v 2016 04 20.52087 16 12 18.315 +04 15 09.32 22.4G 576257 F51 C~345v 2016 05 06.51553 16 10 47.909 +04 27 27.79 23.0G 576257 F51 C~345v 2016 05 06.52800 16 10 47.884 +04 27 28.15 23.7G 576257 F51 C~345v 2016 05 06.53990 16 10 47.791 +04 27 29.06 22.6G 576257 F51 C~345v 2016 05 06.55181 16 10 47.701 +04 27 29.46 21.9G 576257 F51 C~345v 2016 05 13.49532 16 10 04.078 +04 31 51.36 22.4G 576257 F51 C~345v 2016 05 13.49662 16 10 04.059 +04 31 51.51 22.3G 576257 F51 C~345v 2016 05 13.50809 16 10 04.002 +04 31 51.86 22.2G 576257 F51 C~345v 2016 05 13.50938 16 10 03.988 +04 31 51.99 22.6G 576257 F51 C~345v 2016 05 13.52077 16 10 03.908 +04 31 52.17 22.4G 576257 F51 C~345v 2016 05 13.53344 16 10 03.836 +04 31 52.75 22.4G 576257 F51 C~345v 2016 05 13.53474 16 10 03.814 +04 31 52.65 23.1G 576257 F51 C~345v 2016 06 03.46593 16 07 47.090 +04 40 42.82 22.6G 576257 F51 C~345v 2016 06 03.47712 16 07 47.018 +04 40 43.22 22.5G 576257 F51 C~345v 2016 06 03.48829 16 07 46.945 +04 40 43.28 22.4G 576257 F51 C~345v 2016 06 03.49947 16 07 46.876 +04 40 43.50 23.0G 576257 F51 C~345v 2016 06 10.48082 16 07 02.462 +04 42 05.72 23.0G 576257 F51 C~345v 2016 06 10.49151 16 07 02.358 +04 42 06.35 22.8G 576257 F51 C~345v 2016 06 10.50220 16 07 02.297 +04 42 06.50 22.8G 576257 F51 C~345v 2016 06 10.51286 16 07 02.273 +04 42 06.36 22.8G 576257 F51 C~345v 2016 07 05.38625 16 04 45.891 +04 40 23.82 22.5G 576257 F51 C~345v 2016 07 05.39834 16 04 45.849 +04 40 23.60 22.1G 576257 F51 C~345v 2016 07 05.41040 16 04 45.788 +04 40 23.33 22.9G 576257 F51 C~345v 2016 07 05.42247 16 04 45.726 +04 40 23.03 22.5G 576257 F51 C~345v 2016 07 09.34790 16 04 28.807 +04 39 11.91 22.2G 576257 F51 C~345v 2016 07 28.30131 16 03 30.534 +04 30 23.97 22.6G 576257 F51 C~345v 2017 04 27.53348 16 22 55.929 +04 34 12.11 22.7G 576257 F51 C~345v 2017 04 27.54610 16 22 55.860 +04 34 12.63 22.9G 576257 F51 C~345v 2017 04 27.55872 16 22 55.796 +04 34 13.45 22.3G 576257 F51 C~345v 2017 04 27.57136 16 22 55.739 +04 34 13.93 22.1G 576257 F51 C~345v 2017 05 04.50237 16 22 16.350 +04 39 28.12 22.8G 576257 F51 C~345v 2017 05 18.53993 16 20 48.770 +04 48 10.99 22.2G 576257 F51 C~345v 2017 05 30.48873 16 19 30.045 +04 53 17.47 22.5G 576257 F51 C~345v 2017 05 30.50102 16 19 29.947 +04 53 17.93 22.3G 576257 F51 C~345v 2017 05 30.51330 16 19 29.870 +04 53 17.88 22.4G 576257 F51 C~345v 2017 05 30.52570 16 19 29.803 +04 53 18.24 22.6G 576257 F51 C~345v 2018 04 13.59415 16 35 18.485 +04 34 46.24 22.7G 576257 F51 C~345v 2018 04 13.60313 16 35 18.426 +04 34 46.67 23.6G 576257 F51 C~345v 2018 04 13.61216 16 35 18.404 +04 34 47.08 22.3G 576257 F51 C~345v 2018 04 13.62114 16 35 18.347 +04 34 47.79 21.8G 576257 F51 C~345v 2018 06 13.35899 16 29 20.514 +05 09 39.61 22.6G 576257 F51 C~345v 2018 07 05.32621 16 27 12.027 +05 07 55.30 22.4G 576257 F51 C~345v 2018 07 13.32143 16 26 34.117 +05 05 19.04 22.7G 576257 F51 C~345v 2018 07 13.33319 16 26 34.071 +05 05 18.91 22.6G 576257 F51 C~345v 2018 07 13.34488 16 26 34.002 +05 05 19.01 22.2G 576257 F51 C~345v 2018 07 13.35659 16 26 33.958 +05 05 18.37 22.3G 576257 F51 C~345v 2020 05 30.50095 16 53 38.245 +05 31 41.64 22.4w 576257 F51 C~3wRW 2020 05 30.51272 16 53 38.178 +05 31 41.52 22.3w 576257 F51 C~3wRW 2020 05 30.52452 16 53 38.078 +05 31 41.94 22.4w 576257 F51 C~3wRW 2021 06 02.368285 17 04 48.747 +05 44 11.57 22.3w 576257 F51 C~4qHL 2021 06 02.380035 17 04 48.667 +05 44 11.76 22.1w 576257 F51 C~4qHL 2021 06 02.391832 17 04 48.610 +05 44 11.83 22.5w 576257 F51 C~4qHL 2021 06 02.403694 17 04 48.518 +05 44 12.09 22.4w 576257 F51 C~4qHL 2021 06 08.402333 17 04 08.222 +05 45 47.91 22.4w 576257 F51 C~4qHL 2021 06 08.411552 17 04 08.163 +05 45 47.84 22.4w 576257 F51 C~4qHL 2021 06 08.420838 17 04 08.102 +05 45 48.19 22.6w 576257 F51 C~4qHL 2021 06 08.430065 17 04 08.019 +05 45 48.59 22.9w 576257 F51 C~4qHL
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 -0.05 0.00 0.10
2 0.0136 0.00 -0.35 0.00 0.42
3 0.0275 0.00 -0.13 0.00 -0.18
4 0.0357 0.00 0.06 0.00 -0.18
5 0.0816 0.00 0.19 0.00 -0.05
6 0.0817 0.00 0.12 0.00 0.05
7 0.0817 0.00 0.07 0.00 0.03
8 1.9821 0.00 -0.21 0.00 0.28
9 1.9821 0.00 -0.21 0.00 0.07
10 1.9822 0.00 0.03 0.00 0.30
11 1.9822 0.00 0.08 0.00 0.25
12 2.0259 0.00 0.17 0.00 -0.20
13 2.0530 0.00 -0.06 0.00 -0.22
14 2.0530 0.00 0.37 0.00 -0.04
15 2.0531 0.00 -0.16 0.00 0.13
16 2.0531 0.00 0.34 0.00 -0.31
17 2.2117 0.00 -0.08 0.00 0.08
18 2.2117 0.00 0.19 0.00 -0.05
19 2.2118 0.00 0.02 0.00 0.13
20 2.9953 0.00 0.14 0.00 -0.03
21 3.0769 0.00 -0.30 0.00 0.10
22 3.0770 0.00 -0.23 0.00 -0.27
23 3.0770 0.00 0.00 0.00 -0.02
24 3.0770 0.00 -0.08 0.00 -0.64
25 3.1429 0.00 -0.32 0.00 0.27
26 3.2327 0.00 0.04 0.00 0.02
27 3.2328 0.00 -0.10 0.00 -0.18
28 3.2328 0.00 -0.04 0.00 0.11
29 3.2329 0.00 -0.05 0.00 -0.06
30 3.2410 0.00 0.08 0.00 -0.10
31 3.2410 0.00 -0.00 0.00 0.04
32 3.2410 0.00 0.01 0.00 0.04
33 3.2411 0.00 0.06 0.00 0.02
34 3.9290 0.00 -0.19 0.00 0.45
35 3.9290 0.00 -0.12 0.00 0.13
36 3.9290 0.00 -0.01 0.00 -0.34
37 3.9291 0.00 -0.05 0.00 0.62
38 3.9892 0.00 0.31 0.00 -0.20
39 3.9892 0.00 -0.05 0.00 -0.11
40 3.9892 0.00 0.04 0.00 0.01
41 3.9892 0.00 0.54 0.00 -0.30
42 4.0164 0.00 -0.22 0.00 0.02
43 4.0602 0.00 -0.46 0.00 -0.12
44 4.0602 0.00 0.33 0.00 -0.27
45 4.0602 0.00 0.06 0.00 0.16
46 4.0603 0.00 -0.17 0.00 0.08
47 4.0793 0.00 0.12 0.00 -0.11
48 4.0793 0.00 -0.04 0.00 -0.00
49 4.0793 0.00 0.23 0.00 -0.05
50 4.0793 0.00 0.15 0.00 0.03
51 4.0793 0.00 0.06 0.00 -0.18
52 4.0794 0.00 0.23 0.00 -0.04
53 4.0794 0.00 0.02 0.00 -0.19
54 4.1367 0.00 -0.08 0.00 -0.26
55 4.1367 0.00 -0.06 0.00 -0.03
56 4.1367 0.00 -0.05 0.00 -0.14
57 4.1368 0.00 0.02 0.00 -0.10
58 4.1559 0.00 0.29 0.00 -0.29
59 4.1559 0.00 -0.26 0.00 0.25
60 4.1559 0.00 -0.16 0.00 0.31
61 4.1560 0.00 0.50 0.00 0.09
62 4.2241 0.00 -0.09 0.00 0.14
63 4.2241 0.00 0.12 0.00 0.12
64 4.2241 0.00 0.04 0.00 0.05
65 4.2242 0.00 -0.05 0.00 -0.05
66 4.2349 0.00 0.18 0.00 -0.23
67 4.2868 0.00 -0.35 0.00 -0.07
68 5.0349 0.00 -0.05 0.00 0.10
69 5.0349 0.00 -0.03 0.00 0.02
70 5.0349 0.00 0.06 0.00 0.23
71 5.0350 0.00 0.26 0.00 0.11
72 5.0540 0.00 -0.41 0.00 -0.13
73 5.0924 0.00 0.02 0.00 0.14
74 5.1251 0.00 0.02 0.00 -0.04
75 5.1251 0.00 -0.21 0.00 0.18
76 5.1252 0.00 -0.12 0.00 -0.11
77 5.1252 0.00 0.12 0.00 0.00
78 5.9960 0.00 0.24 0.00 0.14
79 5.9961 0.00 -0.10 0.00 0.06
80 5.9961 0.00 0.11 0.00 -0.03
81 5.9961 0.00 -0.21 0.00 0.17
82 6.1624 0.00 -0.03 0.00 0.09
83 6.2225 0.00 -0.12 0.00 0.06
84 6.2444 0.00 -0.08 0.00 -0.16
85 6.2445 0.00 0.02 0.00 -0.01
86 6.2445 0.00 -0.23 0.00 0.36
87 6.2445 0.00 -0.10 0.00 -0.01
88 8.1258 0.00 0.10 0.00 0.17
89 8.1259 0.00 0.30 0.00 -0.20
90 8.1259 0.00 -0.00 0.00 -0.02
91 9.1330 0.00 -0.16 0.00 0.01
92 9.1330 0.00 -0.16 0.00 -0.03
93 9.1331 0.00 0.18 0.00 -0.19
94 9.1331 0.00 0.02 0.00 -0.15
95 9.1495 0.00 -0.02 0.00 0.01
96 9.1495 0.00 0.04 0.00 -0.18
97 9.1496 0.00 0.08 0.00 0.05
98 9.1496 0.00 -0.21 0.00 0.33
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.
576257 quality flag:3 Type: 3:2E 3:2E 3:2E Type: 6:4II 6:4II 6:4II axisobj 39.086 39.086 39.086 ecceobj 0.286 0.286 0.286 incobj 29.133 29.133 29.133 qmin 26.521 26.519 26.518 qmax 52.942 52.964 52.994 amean 39.453 39.453 39.453 amin 39.056 39.058 39.049 amax 39.944 39.954 39.965 emean 0.271 0.271 0.271 emin 0.209 0.209 0.208 emax 0.326 0.326 0.326 imean 29.311 29.311 29.311 imin 27.851 27.852 27.849 imax 30.817 30.816 30.818 excite_mean 0.561 0.561 0.561 fracstop 1.000 1.000 1.000 cjmean 2.684 2.684 2.684 libcent 0 179.5 179.9 179.9 libamp 0 61.2 61.2 60.5 libcent 1 182.3 182.5 181.9 libamp 1 163.7 163.1 163.6 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 92.0 92.0 92.0 kozaiamp 34.4 34.3 34.3