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: 612581 # Created Sun Dec 22 02:07:46 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 116 observations of 116 # Arc: 16.17y # First observation: 2003/08/25 # Last observation: 2019/10/27 # Chi-squared of fit: 226.09 DOF: 226 RMS: 0.25 # Min/Max residuals: -0.76 0.69 # Exact a, adot, b, bdot, g, gdot: 1.527581E-05 2.553799E-02 -3.489318E-06 -4.055005E-03 2.605495E-02 3.769091E-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 -3.071006 -3.702377 0.425366 -0.049322 -0.920402 2452876.779843 # Heliocentric elements and errors Epoch: 2452876.5000 = 2003/08/25 Mean Anomaly: 83.92685 +/- 0.000 Argument of Peri: 99.30212 +/- 0.000 Long of Asc Node: 157.54107 +/- 0.000 Inclination: 9.55211 +/- 0.000 Eccentricity: 0.13216862 +/- 0.0000 Semi-Major Axis: 39.16474253 +/- 0.0000 Time of Perihelion: 2432005.6675 +/- 0.0 Perihelion: 33.98839273 +/- 0.0000 Aphelion: 44.34109233 +/- 0.0000 Period (y) 245.1044 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 39.13486268 +/- 0.0000 Ecliptic Y -2.95459854 +/- 0.0000 Ecliptic Z -2.05632591 +/- 0.0000 Ecliptic XDOT 0.00053992 +/- 0.0000 Ecliptic YDOT 0.00264814 +/- 0.0000 Ecliptic ZDOT -0.00044653 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.29999136 +/- 0.0000 Geocenter to KBO 38.38037097 +/- 0.0000 # Hcoef: 6.96
The following table shows the complete astrometric record for 612581. 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 (612581) followed by the observatory code and reference code for the source of the astrometry.
2003 08 25.27910 23 51 17.94 -04 17 23.4 21.5R 612581 807 Ci4592 2003 08 25.38190 23 51 17.51 -04 17 26.4 612581 807 Ci4592 2003 09 03.12975 23 50 39.90 -04 22 09.0 21.8R 612581 304 Ci4592 2003 09 03.20133 23 50 39.58 -04 22 11.1 612581 304 Ci4592 2003 10 01.43108 23 48 28.39 -04 37 35.3 612581 568 Ci6969 2003 10 01.45900 23 48 28.22 -04 37 36.4 612581 568 Ci6969 2003 10 02.45350 23 48 23.66 -04 38 06.6 612581 568 Ci6969 2003 10 02.49893 23 48 23.44 -04 38 08.4 612581 568 Ci6969 2003 10 22.15921 23 46 59.64 -04 47 17.2 22.3R 612581 695 Cj4700 2003 10 22.25323 23 46 59.29 -04 47 19.6 612581 695 Cj4700 2004 08 13.31483 23 57 43.29 -03 49 44.5 21.5R 612581 807 Cl8405 2004 08 13.38706 23 57 43.04 -03 49 46.6 612581 807 Cl8405 2004 10 11.22454 23 53 25.38 -04 20 45.1 22.5R 612581 695 Cl8405 2004 10 11.31501 23 53 24.97 -04 20 48.0 612581 695 Cl8405 2007 10 11.30400 00 10 25.70 -03 14 12.1 22.9R 612581 688 Cw0394 2007 10 11.36328 00 10 25.44 -03 14 14.3 612581 688 Cw0394 2008 10 30.265780 00 14 38.45 -03 00 42.7 22.8V 612581 645 C~2Jx8 2008 10 30.266609 00 14 38.46 -03 00 42.7 21.4V 612581 645 C~2Jx8 2008 10 30.269097 00 14 38.45 -03 00 42.7 23.3V 612581 645 C~2Jx8 2010 09 08.45374 00 29 31.431 -01 50 37.36 23.2G 612581 F51 C~343j 2010 10 09.19942 00 27 12.39 -02 07 02.0 23.0R 612581 688 C~0Nhh 2010 10 09.26098 00 27 12.11 -02 07 03.3 612581 688 C~0Nhh 2011 09 26.42531 00 33 40.979 -01 38 13.62 22.6G 612581 F51 C~343j 2011 09 26.43933 00 33 40.931 -01 38 14.10 22.8G 612581 F51 C~343j 2011 09 26.45964 00 33 40.832 -01 38 14.59 23.1G 612581 F51 C~343j 2011 09 26.47409 00 33 40.774 -01 38 15.09 22.6G 612581 F51 C~343j 2011 10 16.43967 00 32 09.290 -01 48 28.94 22.4G 612581 F51 C~343j 2012 10 05.36792 00 38 22.397 -01 21 29.33 22.1G 612581 F51 C~343j 2012 10 05.37928 00 38 22.324 -01 21 29.36 21.8G 612581 F51 C~343j 2012 10 05.46325 00 38 21.954 -01 21 31.35 22.7G 612581 F51 C~343j 2012 10 15.35532 00 37 36.728 -01 26 27.85 23.5G 612581 F51 C~343j 2012 10 15.36985 00 37 36.638 -01 26 28.59 22.3G 612581 F51 C~343j 2012 10 15.38446 00 37 36.612 -01 26 28.52 22.4G 612581 F51 C~343j 2012 11 05.28343 00 36 09.873 -01 35 13.84 23.1G 612581 F51 C~343j 2012 11 05.29857 00 36 09.819 -01 35 14.23 23.5G 612581 F51 C~343j 2012 11 05.31365 00 36 09.761 -01 35 14.52 23.4G 612581 F51 C~343j 2012 11 05.32875 00 36 09.700 -01 35 14.72 23.1G 612581 F51 C~343j 2013 01 10.22870 00 34 54.891 -01 37 20.79 22.7G 612581 F51 C~343j 2013 01 10.24450 00 34 54.907 -01 37 20.26 21.6G 612581 F51 C~343j 2013 09 02.36506 00 46 09.673 -00 42 13.12 24.3g 612581 W84 C~4yD2 2013 09 09.45658 00 45 42.007 -00 45 52.90 22.0G 612581 F51 C~343j 2013 10 13.21708 00 43 11.083 -01 03 35.16 22.2z 612581 W84 C~4yD2 2013 10 27.32609 00 42 09.076 -01 10 02.08 22.0G 612581 F51 C~343j 2013 10 27.34160 00 42 08.988 -01 10 02.51 23.5G 612581 F51 C~343j 2013 10 29.05187 00 42 01.903 -01 10 44.56 24.2g 612581 W84 C~4yD2 2013 11 08.14239 00 41 22.677 -01 14 28.73 24.2g 612581 W84 C~4yD2 2013 11 08.18987 00 41 22.503 -01 14 29.65 22.9r 612581 W84 C~4yD2 2014 01 24.22277 00 40 41.171 -01 11 28.52 23.3G 612581 F51 C~343j 2014 07 31.55201 00 52 54.374 -00 07 07.65 23.6G 612581 F51 C~343j 2014 07 31.57595 00 52 54.328 -00 07 07.87 23.1G 612581 F51 C~343j 2014 07 31.58796 00 52 54.338 -00 07 08.07 22.4G 612581 F51 C~343j 2014 08 20.56948 00 52 12.082 -00 14 37.19 23.3G 612581 F51 C~343j 2014 08 27.54396 00 51 50.582 -00 17 48.79 23.4G 612581 F51 C~343j 2014 08 27.55755 00 51 50.482 -00 17 49.10 23.3G 612581 F51 C~343j 2014 08 27.57117 00 51 50.443 -00 17 49.06 23.2G 612581 F51 C~343j 2014 09 13.53283 00 50 46.557 -00 26 21.77 22.8G 612581 F51 C~343j 2014 09 18.43742 00 50 25.726 -00 28 57.25 23.1G 612581 F51 C~343j 2014 09 18.44959 00 50 25.667 -00 28 57.95 23.0G 612581 F51 C~343j 2014 09 18.46177 00 50 25.663 -00 28 57.82 23.6G 612581 F51 C~343j 2014 09 18.47402 00 50 25.537 -00 28 58.27 22.7G 612581 F51 C~343j 2014 09 20.47426 00 50 16.877 -00 30 02.46 23.3G 612581 F51 C~343j 2014 09 20.48622 00 50 16.820 -00 30 02.89 22.8G 612581 F51 C~343j 2014 09 20.49780 00 50 16.751 -00 30 03.34 23.2G 612581 F51 C~343j 2014 09 20.50931 00 50 16.713 -00 30 03.22 23.0G 612581 F51 C~343j 2014 09 20.52080 00 50 16.651 -00 30 03.75 22.9G 612581 F51 C~343j 2014 09 22.42271 00 50 08.289 -00 31 04.58 23.3G 612581 F51 C~343j 2014 09 22.43468 00 50 08.256 -00 31 04.74 23.1G 612581 F51 C~343j 2014 09 22.44665 00 50 08.186 -00 31 05.47 22.8G 612581 F51 C~343j 2014 09 22.45866 00 50 08.114 -00 31 05.85 22.7G 612581 F51 C~343j 2014 11 13.13256 00 46 25.679 -00 54 29.72 22.5r 612581 W84 C~4yD2 2014 11 15.15919 00 46 18.852 -00 55 04.95 22.5z 612581 W84 C~4yD2 2014 11 21.26893 00 45 59.890 -00 56 38.07 23.7G 612581 F51 C~343j 2014 11 21.28177 00 45 59.846 -00 56 38.48 23.2G 612581 F51 C~343j 2015 08 09.59924 00 57 54.503 +00 11 02.98 22.9G 612581 F51 C~343j 2015 10 17.15415 00 53 35.280 -00 22 15.02 22.8r 612581 W84 C~4yD2 2015 10 22.32998 00 53 12.042 -00 24 40.37 23.2G 612581 F51 C~343j 2015 12 01.26706 00 50 50.761 -00 37 10.79 23.6G 612581 F51 C~343j 2015 12 14.25255 00 50 28.377 -00 38 09.09 23.1G 612581 F51 C~343j 2015 12 31.25693 00 50 21.917 -00 36 48.62 22.8G 612581 F51 C~343j 2016 08 26.62961 01 02 23.012 +00 24 46.56 22.7G 612581 F51 C~343j 2016 08 27.58347 01 02 20.065 +00 24 19.56 23.7G 612581 F51 C~343j 2016 08 30.35404 01 02 11.06 +00 23 02.5 22.5g 612581 W84 C~3cWO 2016 11 01.39577 00 57 41.815 -00 08 00.06 21.2G 612581 F51 C~343j 2016 11 07.19846 00 57 18.528 -00 10 09.61 22.1z 612581 W84 C~4yD2 2016 11 18.13524 00 56 39.363 -00 13 31.87 22.6Y 612581 W84 C~4yD2 2017 07 30.59960 01 08 29.894 +00 55 45.04 23.6G 612581 F51 C~343j 2017 08 22.41698 01 07 48.146 +00 47 41.20 22.5i 612581 W84 C~4yD2 2017 09 17.47521 01 06 17.072 +00 35 08.05 23.6G 612581 F51 C~343j 2017 09 17.48726 01 06 17.026 +00 35 07.52 22.9G 612581 F51 C~343j 2017 09 17.49935 01 06 16.978 +00 35 06.99 23.4G 612581 F51 C~343j 2017 09 17.51148 01 06 16.928 +00 35 07.24 22.7G 612581 F51 C~343j 2017 09 18.26215 01 06 13.800 +00 34 43.74 22.4i 612581 W84 C~4yD2 2017 09 18.26352 01 06 13.798 +00 34 43.68 23.1r 612581 W84 C~4yD2 2017 09 18.26490 01 06 13.781 +00 34 43.76 23.9g 612581 W84 C~4yD2 2017 09 24.29256 01 05 47.977 +00 31 35.04 21.9z 612581 W84 C~4yD2 2017 09 24.41520 01 05 47.462 +00 31 30.73 23.3G 612581 F51 C~343j 2017 09 24.42792 01 05 47.416 +00 31 30.53 22.8G 612581 F51 C~343j 2017 09 24.44055 01 05 47.328 +00 31 29.52 23.0G 612581 F51 C~343j 2017 09 24.45323 01 05 47.287 +00 31 29.67 23.3G 612581 F51 C~343j 2017 09 25.47588 01 05 42.803 +00 30 57.60 22.5G 612581 F51 C~343j 2017 09 25.48878 01 05 42.745 +00 30 57.17 22.6G 612581 F51 C~343j 2017 09 25.50161 01 05 42.684 +00 30 56.44 23.1G 612581 F51 C~343j 2017 09 25.51447 01 05 42.629 +00 30 56.49 23.0G 612581 F51 C~343j 2017 09 26.43689 01 05 38.552 +00 30 27.45 23.8G 612581 F51 C~343j 2017 09 26.44924 01 05 38.515 +00 30 27.05 22.7G 612581 F51 C~343j 2017 09 26.46170 01 05 38.473 +00 30 26.68 22.7G 612581 F51 C~343j 2017 09 26.47424 01 05 38.401 +00 30 26.01 23.1G 612581 F51 C~343j 2017 09 27.24187 01 05 34.991 +00 30 02.36 22.2z 612581 W84 C~4yD2 2017 09 29.51466 01 05 24.809 +00 28 51.15 22.5G 612581 F51 C~343j 2017 09 29.53793 01 05 24.711 +00 28 50.18 23.1G 612581 F51 C~343j 2017 09 29.54954 01 05 24.669 +00 28 49.97 22.9G 612581 F51 C~343j 2018 09 14.34565 01 11 42.849 +00 57 49.45 22.8i 612581 W84 C~4yD2 2018 09 14.34702 01 11 42.839 +00 57 49.49 23.2r 612581 W84 C~4yD2 2019 10 27.36146 01 13 44.72 +00 57 29.6 23.2i 612581 T09 C~7dBx 2019 10 27.40237 01 13 44.57 +00 57 28.1 22.8i 612581 T09 C~7dBx 2019 10 27.50963 01 13 44.06 +00 57 25.2 22.9i 612581 T09 C~7dBx
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 0.21
2 0.0003 0.00 -0.00 0.00 0.45
3 0.0242 0.00 0.53 0.00 -0.23
4 0.0244 0.00 0.59 0.00 0.02
5 0.1017 0.00 0.12 0.00 -0.14
6 0.1018 0.00 -0.46 0.00 -0.37
7 0.1045 0.00 -0.32 0.00 0.26
8 0.1046 0.00 -0.44 0.00 -0.13
9 0.1585 0.00 -0.06 0.00 0.03
10 0.1587 0.00 0.21 0.00 -0.09
11 0.9693 0.00 -0.13 0.00 -0.01
12 0.9695 0.00 -0.05 0.00 -0.07
13 1.1306 0.00 0.26 0.00 0.59
14 1.1308 0.00 0.12 0.00 0.26
15 4.1287 0.00 -0.57 0.00 -0.10
16 4.1289 0.00 -0.42 0.00 -0.56
17 5.1827 0.00 0.20 0.00 -0.43
18 5.1827 0.00 0.40 0.00 -0.41
19 5.1827 0.00 0.39 0.00 -0.36
20 7.0395 0.00 0.04 0.00 -0.04
21 7.1237 0.00 -0.28 0.00 -0.06
22 7.1238 0.00 -0.19 0.00 0.50
23 8.0880 0.00 -0.15 0.00 -0.05
24 8.0880 0.00 0.12 0.00 -0.08
25 8.0881 0.00 0.06 0.00 0.09
26 8.0881 0.00 0.20 0.00 0.05
27 8.1428 0.00 0.09 0.00 -0.02
28 9.1145 0.00 0.17 0.00 -0.65
29 9.1146 0.00 -0.12 0.00 -0.33
30 9.1148 0.00 0.24 0.00 0.29
31 9.1419 0.00 -0.41 0.00 0.33
32 9.1419 0.00 -0.76 0.00 0.01
33 9.1420 0.00 -0.14 0.00 0.50
34 9.1992 0.00 0.03 0.00 0.03
35 9.1992 0.00 0.08 0.00 -0.05
36 9.1993 0.00 0.07 0.00 -0.02
37 9.1993 0.00 0.01 0.00 0.09
38 9.3797 0.00 -0.12 0.00 -0.12
39 9.3798 0.00 -0.30 0.00 0.13
40 10.0235 0.00 -0.08 0.00 0.02
41 10.0429 0.00 0.55 0.00 -0.75
42 10.1354 0.00 -0.11 0.00 -0.02
43 10.1740 0.00 0.14 0.00 0.14
44 10.1740 0.00 -0.18 0.00 0.10
45 10.1787 0.00 0.01 0.00 0.13
46 10.2063 0.00 -0.01 0.00 0.05
47 10.2065 0.00 0.02 0.00 0.08
48 10.4174 0.00 0.02 0.00 -0.27
49 10.9330 0.00 0.15 0.00 -0.26
50 10.9331 0.00 -0.04 0.00 -0.04
51 10.9331 0.00 0.36 0.00 -0.02
52 10.9878 0.00 0.04 0.00 0.03
53 11.0069 0.00 0.69 0.00 -0.48
54 11.0069 0.00 -0.11 0.00 -0.41
55 11.0070 0.00 -0.00 0.00 0.02
56 11.0534 0.00 0.06 0.00 -0.09
57 11.0668 0.00 -0.27 0.00 0.14
58 11.0669 0.00 -0.35 0.00 -0.17
59 11.0669 0.00 0.40 0.00 0.35
60 11.0669 0.00 -0.68 0.00 0.29
61 11.0724 0.00 0.16 0.00 0.00
62 11.0724 0.00 0.11 0.00 -0.04
63 11.0725 0.00 -0.15 0.00 -0.12
64 11.0725 0.00 0.05 0.00 0.36
65 11.0725 0.00 -0.11 0.00 0.20
66 11.0777 0.00 0.23 0.00 0.22
67 11.0778 0.00 0.55 0.00 0.45
68 11.0778 0.00 0.31 0.00 0.10
69 11.0778 0.00 0.04 0.00 0.10
70 11.2193 0.00 -0.01 0.00 0.00
71 11.2249 0.00 0.05 0.00 0.01
72 11.2416 0.00 0.09 0.00 0.19
73 11.2416 0.00 0.01 0.00 -0.04
74 11.9571 0.00 0.27 0.00 0.08
75 12.1448 0.00 -0.00 0.00 0.16
76 12.1589 0.00 0.09 0.00 0.11
77 12.2683 0.00 0.06 0.00 0.01
78 12.3038 0.00 0.19 0.00 0.09
79 12.3504 0.00 0.03 0.00 0.18
80 13.0058 0.00 -0.68 0.00 0.55
81 13.0084 0.00 -0.14 0.00 -0.15
82 13.0159 0.00 -0.20 0.00 0.43
83 13.1885 0.00 0.09 0.00 0.01
84 13.2044 0.00 -0.05 0.00 0.09
85 13.2344 0.00 -0.09 0.00 0.17
86 13.9311 0.00 0.01 0.00 -0.02
87 13.9935 0.00 -0.15 0.00 -0.02
88 14.0649 0.00 -0.14 0.00 0.00
89 14.0649 0.00 -0.07 0.00 -0.15
90 14.0649 0.00 -0.02 0.00 -0.31
91 14.0650 0.00 -0.00 0.00 0.32
92 14.0670 0.00 -0.05 0.00 0.00
93 14.0670 0.00 0.01 0.00 -0.01
94 14.0670 0.00 -0.16 0.00 0.11
95 14.0835 0.00 -0.18 0.00 0.13
96 14.0839 0.00 0.00 0.00 -0.15
97 14.0839 0.00 0.16 0.00 0.05
98 14.0839 0.00 -0.31 0.00 -0.56
99 14.0840 0.00 -0.08 0.00 -0.01
100 14.0868 0.00 0.04 0.00 0.03
101 14.0868 0.00 0.04 0.00 0.00
102 14.0869 0.00 -0.01 0.00 -0.33
103 14.0869 0.00 0.03 0.00 0.13
104 14.0894 0.00 -0.13 0.00 0.04
105 14.0894 0.00 0.15 0.00 0.03
106 14.0895 0.00 0.36 0.00 0.05
107 14.0895 0.00 0.13 0.00 -0.23
108 14.0916 0.00 0.07 0.00 0.02
109 14.0978 0.00 -0.25 0.00 0.18
110 14.0979 0.00 -0.12 0.00 -0.06
111 14.0979 0.00 0.04 0.00 0.09
112 15.0556 0.00 -0.11 0.00 -0.06
113 15.0556 0.00 -0.18 0.00 0.02
114 16.1727 0.00 0.06 0.00 0.10
115 16.1728 0.00 0.58 0.00 -0.33
116 16.1731 0.00 0.19 0.00 -0.44
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.
612581 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.534 39.534 39.534 ecceobj 0.132 0.132 0.132 incobj 9.513 9.513 9.513 qmin 32.952 32.951 32.952 qmax 46.518 46.518 46.518 amean 39.457 39.457 39.457 amin 39.035 39.047 39.052 amax 39.923 39.922 39.923 emean 0.142 0.142 0.142 emin 0.124 0.124 0.123 emax 0.165 0.165 0.165 imean 8.958 8.957 8.960 imin 8.146 8.146 8.146 imax 9.819 9.812 9.831 excite_mean 0.211 0.211 0.211 fracstop 1.000 1.000 1.000 cjmean 3.002 3.002 3.002 libcent 0 180.5 180.9 180.0 libamp 0 77.3 75.9 78.0 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 181.1 180.7 181.2 kozaiamp 180.0 180.0 180.0