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: 612167 # Created Wed Dec 25 02:07:38 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 80 observations of 80 # Arc: 20.95y # First observation: 2000/07/29 # Last observation: 2021/07/09 # Chi-squared of fit: 102.52 DOF: 154 RMS: 0.20 # Min/Max residuals: -0.89 0.68 # Exact a, adot, b, bdot, g, gdot: 1.611734E-05 2.499319E-02 -7.913551E-07 -1.444542E-03 2.493808E-02 -2.588138E-04 # 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 -3.018173 -61.206721 -0.124707 -0.053232 -1.006222 2451754.574243 # Heliocentric elements and errors Epoch: 2451754.5000 = 2000/07/29 Mean Anomaly: 348.26681 +/- 0.000 Argument of Peri: 234.63529 +/- 0.000 Long of Asc Node: 77.34754 +/- 0.000 Inclination: 4.42711 +/- 0.000 Eccentricity: 0.04794909 +/- 0.0000 Semi-Major Axis: 43.12514651 +/- 0.0000 Time of Perihelion: 2455125.8830 +/- 0.0 Perihelion: 41.05733479 +/- 0.0000 Aphelion: 45.19295823 +/- 0.0000 Period (y) 283.2071 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 19.88808336 +/- 0.0000 Ecliptic Y -35.91132023 +/- 0.0000 Ecliptic Z -2.11137218 +/- 0.0000 Ecliptic XDOT 0.00237985 +/- 0.0000 Ecliptic YDOT 0.00135938 +/- 0.0000 Ecliptic ZDOT -0.00015673 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.10495355 +/- 0.0000 Geocenter to KBO 40.09936269 +/- 0.0000 # Hcoef: 6.76
The following table shows the complete astrometric record for 612167. 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 (612167) followed by the observatory code and reference code for the source of the astrometry.
2000 07 29.07350 20 06 22.73 -23 21 16.8 22.0R 612167 807 Cd1702 2000 07 29.18080 20 06 22.17 -23 21 18.5 612167 807 Cd1702 2000 09 20.11778 20 02 51.66 -23 29 58.7 23.2R 612167 695 Cd1702 2000 09 20.20143 20 02 51.49 -23 29 59.2 612167 695 Cd1702 2001 05 23.28180 20 17 09.99 -22 50 08.0 22.2R 612167 807 Cd7641 2001 05 23.36202 20 17 09.82 -22 50 08.9 612167 807 Cd7641 2001 06 12.28897 20 16 12.89 -22 54 37.5 21.5 612167 304 Ce6494 2001 06 12.36625 20 16 12.61 -22 54 38.6 612167 304 Ce6494 2001 08 19.08332 20 10 50.54 -23 12 46.9 21.1R 612167 807 Cd7641 2001 08 19.15838 20 10 50.20 -23 12 47.9 612167 807 Cd7641 2001 08 20.08816 20 10 46.00 -23 12 58.6 612167 807 Cd7641 2002 06 06.53543 20 22 37.55 -22 38 17.9 612167 568 Cf8835 2002 06 06.54045 20 22 37.52 -22 38 17.8 612167 568 Cf8835 2002 06 06.55689 20 22 37.49 -22 38 18.1 612167 568 Cf8835 2002 06 06.56615 20 22 37.45 -22 38 18.3 612167 568 Cf8835 2002 06 06.57338 20 22 37.44 -22 38 18.3 612167 568 Cf8835 2002 06 18.36185 20 21 56.16 -22 41 22.2 22.6R 612167 695 Cf8835 2002 06 18.38773 20 21 56.06 -22 41 22.7 612167 695 Cf8835 2004 07 17.32674 20 31 52.00 -22 18 20.3 22.8R 612167 688 Cl0684 2004 07 17.40589 20 31 51.54 -22 18 22.2 612167 688 Cl0684 2011 07 26.44851 21 13 13.260 -20 04 19.76 22.5G 612167 F51 C~2rXd 2011 07 26.46230 21 13 13.185 -20 04 20.09 22.4G 612167 F51 C~2rXd 2012 07 28.45799 21 18 53.501 -19 42 50.87 21.9G 612167 F51 C~2rXd 2012 08 21.38425 21 16 56.528 -19 51 45.69 22.0G 612167 F51 C~2rXd 2012 08 21.41224 21 16 56.418 -19 51 46.13 23.0G 612167 F51 C~2rXd 2012 08 21.42607 21 16 56.350 -19 51 46.39 22.2G 612167 F51 C~2rXd 2013 06 09.22552 21 27 39.96 -19 02 40.8 22.6R 612167 304 C~0snV 2013 06 09.30361 21 27 39.79 -19 02 42.2 612167 304 C~0snV 2013 06 09.37646 21 27 39.65 -19 02 43.2 612167 304 C~0snV 2013 07 14.48789 21 25 49.103 -19 14 04.09 23.1G 612167 F51 C~2rXd 2013 07 14.50394 21 25 49.028 -19 14 04.87 23.0G 612167 F51 C~2rXd 2013 07 14.51939 21 25 48.990 -19 14 05.19 23.0G 612167 F51 C~2rXd 2013 07 14.53483 21 25 48.920 -19 14 05.30 22.7G 612167 F51 C~2rXd 2013 08 04.44795 21 24 12.365 -19 22 18.72 22.9G 612167 F51 C~2rXd 2013 08 24.43628 21 22 35.004 -19 29 46.73 22.8G 612167 F51 C~2rXd 2013 08 29.35240 21 22 11.912 -19 31 25.80 21.9G 612167 F51 C~2rXd 2013 08 29.36624 21 22 11.838 -19 31 26.31 22.2G 612167 F51 C~2rXd 2013 09 21.31822 21 20 37.462 -19 37 35.09 22.5G 612167 F51 C~2rXd 2013 10 20.19789 21 19 30.414 -19 40 26.31 21.7G 612167 F51 C~2rXd 2014 06 27.51447 21 32 40.325 -18 43 54.54 23.3G 612167 F51 C~2rXd 2014 06 27.52621 21 32 40.284 -18 43 54.40 22.7G 612167 F51 C~2rXd 2014 06 27.53791 21 32 40.249 -18 43 54.97 22.9G 612167 F51 C~2rXd 2014 06 27.54956 21 32 40.197 -18 43 55.40 23.3G 612167 F51 C~2rXd 2014 07 03.56601 21 32 20.212 -18 45 58.73 23.3G 612167 F51 C~2rXd 2014 07 25.47580 21 30 50.098 -18 54 22.78 23.0G 612167 F51 C~2rXd 2014 07 25.48705 21 30 50.047 -18 54 22.78 22.6G 612167 F51 C~2rXd 2014 07 25.49831 21 30 49.990 -18 54 23.13 23.0G 612167 F51 C~2rXd 2014 07 25.50955 21 30 49.951 -18 54 23.33 23.2G 612167 F51 C~2rXd 2014 07 28.44743 21 30 36.325 -18 55 34.51 22.9G 612167 F51 C~2rXd 2014 08 15.43958 21 29 09.481 -19 02 43.86 22.3G 612167 F51 C~2rXd 2014 08 25.41034 21 28 21.266 -19 06 25.81 22.5G 612167 F51 C~2rXd 2014 08 25.42091 21 28 21.209 -19 06 26.24 23.5G 612167 F51 C~2rXd 2014 08 25.43149 21 28 21.142 -19 06 26.15 22.9G 612167 F51 C~2rXd 2014 08 25.44208 21 28 21.110 -19 06 26.55 23.1G 612167 F51 C~2rXd 2014 09 11.34890 21 27 05.259 -19 11 49.60 23.1G 612167 F51 C~2rXd 2015 07 18.54018 21 37 08.548 -18 26 56.09 23.8G 612167 F51 C~2rXd 2015 07 25.41778 21 36 38.455 -18 29 42.15 22.4G 612167 F51 C~2rXd 2015 08 10.42173 21 35 22.979 -18 36 14.45 22.1G 612167 F51 C~2rXd 2015 08 10.43273 21 35 22.921 -18 36 14.72 21.9G 612167 F51 C~2rXd 2015 08 10.45478 21 35 22.820 -18 36 15.18 21.9G 612167 F51 C~2rXd 2015 08 11.43580 21 35 18.057 -18 36 39.12 23.3G 612167 F51 C~2rXd 2015 09 08.45744 21 33 06.020 -18 46 49.72 22.8G 612167 F51 C~2rXd 2015 10 03.26966 21 31 35.400 -18 52 35.33 22.4G 612167 F51 C~2rXd 2015 10 03.28064 21 31 35.376 -18 52 35.24 22.4G 612167 F51 C~2rXd 2015 10 03.29162 21 31 35.348 -18 52 35.53 23.0G 612167 F51 C~2rXd 2015 10 03.30259 21 31 35.324 -18 52 35.69 23.1G 612167 F51 C~2rXd 2017 06 21.58999 21 50 01.741 -17 26 29.44 22.7G 612167 F51 C~2rXd 2017 07 04.55110 21 49 25.511 -17 30 42.87 22.8G 612167 F51 C~2rXd 2017 07 25.46621 21 48 04.606 -17 38 53.84 23.7G 612167 F51 C~2rXd 2017 07 29.50604 21 47 46.611 -17 40 35.31 23.7G 612167 F51 C~2rXd 2017 08 18.43248 21 46 12.402 -17 48 56.19 22.9G 612167 F51 C~2rXd 2017 09 15.36004 21 44 04.727 -17 58 55.94 23.3G 612167 F51 C~2rXd 2017 11 02.28185 21 42 09.205 -18 04 42.42 23.1G 612167 F51 C~2rXd 2017 12 12.22194 21 43 14.186 -17 55 27.57 23.4G 612167 F51 C~2rXd 2020 08 19.47951 22 03 11.214 -16 28 44.15 22.5w 612167 F51 C~43p4 2020 08 19.48853 22 03 11.169 -16 28 44.36 22.6w 612167 F51 C~43p4 2020 08 19.49758 22 03 11.118 -16 28 44.70 22.4w 612167 F51 C~43p4 2021 07 09.343970 22 11 41.108 -15 43 06.81 22.8G 612167 G37 C~4unQ 2021 07 09.390680 22 11 40.944 -15 43 06.92 612167 G37 C~4unQ 2021 07 09.435650 22 11 40.780 -15 43 08.07 612167 G37 C~4unQ
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 -0.04
2 0.0003 0.00 -0.07 0.00 -0.08
3 0.1452 0.00 -0.12 0.00 0.21
4 0.1455 0.00 0.08 0.00 -0.06
5 0.8164 0.00 0.12 0.00 -0.09
6 0.8167 0.00 0.09 0.00 -0.08
7 0.8712 0.00 0.25 0.00 -0.22
8 0.8714 0.00 0.35 0.00 -0.14
9 1.0568 0.00 -0.16 0.00 -0.30
10 1.0570 0.00 -0.06 0.00 -0.36
11 1.0596 0.00 -0.26 0.00 0.36
12 1.8548 0.00 0.22 0.00 0.22
13 1.8548 0.00 0.00 0.00 0.40
14 1.8548 0.00 0.33 0.00 0.34
15 1.8549 0.00 0.17 0.00 0.27
16 1.8549 0.00 0.36 0.00 0.37
17 1.8872 0.00 -0.18 0.00 -0.03
18 1.8872 0.00 -0.14 0.00 -0.10
19 3.9678 0.00 -0.01 0.00 -0.03
20 3.9681 0.00 -0.89 0.00 -0.42
21 10.9908 0.00 0.10 0.00 -0.21
22 10.9908 0.00 -0.02 0.00 -0.22
23 11.9983 0.00 0.23 0.00 0.13
24 12.0638 0.00 -0.34 0.00 -0.15
25 12.0639 0.00 0.07 0.00 -0.01
26 12.0639 0.00 0.06 0.00 0.02
27 12.8628 0.00 0.10 0.00 0.31
28 12.8631 0.00 -0.26 0.00 0.05
29 12.8633 0.00 -0.28 0.00 0.10
30 12.9594 0.00 -0.04 0.00 0.23
31 12.9594 0.00 -0.13 0.00 -0.18
32 12.9595 0.00 0.31 0.00 -0.15
33 12.9595 0.00 0.26 0.00 0.10
34 13.0168 0.00 0.05 0.00 -0.21
35 13.0715 0.00 0.36 0.00 -0.07
36 13.0850 0.00 -0.08 0.00 0.07
37 13.0850 0.00 -0.21 0.00 -0.17
38 13.1478 0.00 -0.42 0.00 0.00
39 13.2269 0.00 -0.00 0.00 -0.08
40 13.9122 0.00 0.03 0.00 -0.14
41 13.9123 0.00 -0.02 0.00 0.23
42 13.9123 0.00 0.02 0.00 -0.11
43 13.9123 0.00 -0.20 0.00 -0.31
44 13.9288 0.00 0.01 0.00 -0.05
45 13.9888 0.00 0.01 0.00 -0.18
46 13.9888 0.00 0.03 0.00 0.10
47 13.9888 0.00 -0.03 0.00 0.02
48 13.9889 0.00 0.17 0.00 0.09
49 13.9969 0.00 0.02 0.00 -0.07
50 14.0462 0.00 0.11 0.00 -0.02
51 14.0735 0.00 0.10 0.00 0.06
52 14.0735 0.00 0.02 0.00 -0.14
53 14.0735 0.00 -0.22 0.00 0.17
54 14.0736 0.00 0.07 0.00 -0.00
55 14.1199 0.00 0.07 0.00 0.00
56 14.9691 0.00 0.18 0.00 -0.06
57 14.9879 0.00 0.24 0.00 0.08
58 15.0318 0.00 -0.06 0.00 0.10
59 15.0318 0.00 -0.11 0.00 0.10
60 15.0318 0.00 0.01 0.00 0.18
61 15.0345 0.00 0.01 0.00 -0.02
62 15.1112 0.00 0.19 0.00 -0.04
63 15.1792 0.00 -0.18 0.00 0.08
64 15.1792 0.00 -0.07 0.00 0.26
65 15.1792 0.00 -0.01 0.00 0.07
66 15.1793 0.00 0.11 0.00 0.01
67 16.8967 0.00 -0.25 0.00 -0.05
68 16.9322 0.00 -0.15 0.00 -0.35
69 16.9894 0.00 -0.04 0.00 0.10
70 17.0005 0.00 -0.04 0.00 0.21
71 17.0551 0.00 -0.03 0.00 -0.05
72 17.1315 0.00 0.02 0.00 -0.18
73 17.2627 0.00 0.68 0.00 0.14
74 17.3721 0.00 0.27 0.00 0.07
75 20.0586 0.00 0.01 0.00 0.11
76 20.0586 0.00 -0.00 0.00 0.13
77 20.0587 0.00 -0.11 0.00 0.02
78 20.9453 0.00 0.17 0.00 -0.63
79 20.9454 0.00 -0.05 0.00 0.30
80 20.9456 0.00 -0.35 0.00 0.14
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.
612167 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.208 43.208 43.208 ecceobj 0.050 0.050 0.050 incobj 4.426 4.426 4.426 qmin 40.425 40.426 40.424 qmax 46.302 46.302 46.302 amean 43.252 43.252 43.252 amin 42.921 42.918 42.922 amax 43.602 43.603 43.602 emean 0.044 0.044 0.044 emin 0.023 0.024 0.023 emax 0.062 0.062 0.062 imean 2.476 2.476 2.476 imin 1.597 1.597 1.598 imax 3.279 3.279 3.280 excite_mean 0.063 0.063 0.063 fracstop 1.000 1.000 1.000 cjmean 3.088 3.088 3.088 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 180.2 180.1 180.2 kozaiamp 180.0 180.0 180.0