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: 612166 # Created Wed Dec 25 02:07:38 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 68 observations of 68 # Arc: 24.25y # First observation: 2000/07/31 # Last observation: 2024/11/01 # Chi-squared of fit: 239.88 DOF: 130 RMS: 0.33 # Min/Max residuals: -0.75 0.94 # Exact a, adot, b, bdot, g, gdot: 1.510981E-05 2.147716E-02 1.105565E-06 1.825652E-04 2.306522E-02 3.791256E-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 -3.168426 -23.124887 0.489731 -0.049286 -0.887440 2451756.841063 # Heliocentric elements and errors Epoch: 2451756.5000 = 2000/07/31 Mean Anomaly: 172.59819 +/- 0.000 Argument of Peri: 105.15985 +/- 0.000 Long of Asc Node: 58.10141 +/- 0.000 Inclination: 3.13591 +/- 0.000 Eccentricity: 0.02631770 +/- 0.0000 Semi-Major Axis: 43.12319728 +/- 0.0000 Time of Perihelion: 2402165.9867 +/- 0.0 Perihelion: 41.98829387 +/- 0.0000 Aphelion: 44.25810070 +/- 0.0000 Period (y) 283.1879 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.44193694 +/- 0.0000 Ecliptic Y -17.79585708 +/- 0.0000 Ecliptic Z -2.39627554 +/- 0.0000 Ecliptic XDOT 0.00103652 +/- 0.0000 Ecliptic YDOT 0.00233197 +/- 0.0000 Ecliptic ZDOT 0.00001930 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.24912138 +/- 0.0000 Geocenter to KBO 43.35534251 +/- 0.0000 # Hcoef: 6.76
The following table shows the complete astrometric record for 612166. 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 (612166) followed by the observatory code and reference code for the source of the astrometry.
2000 07 31.34032 22 39 12.74 -11 55 43.1 22.6R 612166 807 Cc0956 2000 07 31.42019 22 39 12.45 -11 55 44.9 612166 807 Cc0956 2000 08 27.17980 22 37 22.47 -12 07 04.1 22.4R 612166 807 Cc0956 2000 08 27.25472 22 37 22.13 -12 07 06.2 612166 807 Cc0956 2000 09 21.20280 22 35 35.55 -12 17 06.9 22.5R 612166 695 Cc2364 2000 09 21.28587 22 35 35.15 -12 17 09.2 612166 695 Cc2364 2000 11 28.10022 22 33 22.94 -12 25 38.2 22.7R 612166 695 Cc3775 2000 11 29.10082 22 33 23.75 -12 25 28.9 22.9R 612166 695 Cc3775 2001 07 23.42834 22 44 19.156 -11 24 17.39 612166 568 Cl5584 2001 07 23.49718 22 44 18.901 -11 24 19.06 612166 568 Cl5584 2001 09 19.16421 22 40 24.35 -11 48 08.8 612166 695 Cd5762 2001 09 19.33083 22 40 23.65 -11 48 13.1 612166 695 Cd5762 2001 09 22.17673 22 40 12.08 -11 49 15.8 612166 290 Cd5762 2001 09 22.20024 22 40 11.95 -11 49 16.6 612166 290 Cd5762 2001 10 11.04564 22 39 03.49 -11 55 11.4 20.2 612166 304 Ce8850 2001 10 11.07439 22 39 03.39 -11 55 12.1 612166 304 Ce8850 2002 07 10.21546 22 49 32.09 -10 51 22.7 22.6R 612166 304 Cf9760 2002 07 10.43898 22 49 31.57 -10 51 26.6 612166 304 Cf9760 2002 07 12.36340 22 49 27.01 -10 51 59.5 612166 304 Cf9760 2002 07 12.38310 22 49 26.95 -10 51 59.8 612166 304 Cf9760 2002 07 13.35810 22 49 24.56 -10 52 17.8 612166 304 Cf9760 2002 07 13.39053 22 49 24.49 -10 52 18.6 612166 304 Cf9760 2007 05 10.20587 23 11 33.51 -08 25 50.7 22.9R 612166 250 S~06AN 2007 05 10.21281 23 11 33.52 -08 25 50.7 612166 250 S~06AN 2007 05 10.22045 23 11 33.54 -08 25 50.6 612166 250 S~06AN 2007 05 10.27531 23 11 33.71 -08 25 49.8 612166 250 S~06AN 2009 10 16.156939 23 15 21.47 -08 04 15.1 612166 645 C~1GLG 2009 10 16.157769 23 15 21.46 -08 04 15.1 612166 645 C~1GLG 2009 10 16.160256 23 15 21.45 -08 04 15.0 612166 645 C~1GLG 2014 07 28.53780 23 42 57.219 -04 59 14.07 23.3G 612166 F51 C~2rXd 2014 08 03.52799 23 42 41.416 -05 01 13.23 22.8G 612166 F51 C~2rXd 2014 08 03.53933 23 42 41.364 -05 01 13.49 23.3G 612166 F51 C~2rXd 2014 08 03.55064 23 42 41.320 -05 01 13.90 23.7G 612166 F51 C~2rXd 2014 08 03.56194 23 42 41.327 -05 01 14.03 23.4G 612166 F51 C~2rXd 2014 08 04.51886 23 42 38.563 -05 01 34.04 23.9G 612166 F51 C~2rXd 2014 08 20.48054 23 41 45.795 -05 07 49.27 23.3G 612166 F51 C~2rXd 2014 08 22.50230 23 41 38.260 -05 08 41.37 23.0G 612166 F51 C~2rXd 2014 08 23.52404 23 41 34.379 -05 09 07.21 21.2G 612166 F51 C~2rXd 2014 11 11.29426 23 36 37.825 -05 39 00.10 22.8G 612166 F51 C~2rXd 2014 11 26.25318 23 36 14.889 -05 40 23.73 23.4G 612166 F51 C~2rXd 2015 09 09.41690 23 44 56.050 -04 45 40.72 23.0G 612166 F51 C~2rXd 2015 09 09.42905 23 44 55.996 -04 45 40.70 23.7G 612166 F51 C~2rXd 2015 09 09.44122 23 44 55.940 -04 45 40.97 23.1G 612166 F51 C~2rXd 2015 09 09.45342 23 44 55.902 -04 45 41.58 23.3G 612166 F51 C~2rXd 2015 09 12.39454 23 44 43.468 -04 47 02.67 23.5G 612166 F51 C~2rXd 2015 09 12.40629 23 44 43.425 -04 47 02.90 22.6G 612166 F51 C~2rXd 2015 09 12.41804 23 44 43.392 -04 47 03.02 23.4G 612166 F51 C~2rXd 2015 09 12.42981 23 44 43.330 -04 47 03.56 23.7G 612166 F51 C~2rXd 2015 10 29.30197 23 41 39.452 -05 05 31.94 23.3G 612166 F51 C~2rXd 2015 11 02.30643 23 41 27.669 -05 06 34.34 23.1G 612166 F51 C~2rXd 2017 08 01.54515 23 56 05.810 -03 28 02.12 22.8G 612166 F51 C~2rXd 2017 08 01.56895 23 56 05.774 -03 28 01.98 23.6G 612166 F51 C~2rXd 2017 08 03.52437 23 56 00.807 -03 28 39.66 23.4G 612166 F51 C~2rXd 2017 09 14.45116 23 53 29.488 -03 46 03.30 22.6G 612166 F51 C~2rXd 2017 09 17.38477 23 53 17.021 -03 47 24.22 22.9G 612166 F51 C~2rXd 2017 09 25.41391 23 52 42.740 -03 51 02.52 23.0G 612166 F51 C~2rXd 2017 09 28.43034 23 52 29.911 -03 52 22.63 23.2G 612166 F51 C~2rXd 2017 11 13.31793 23 49 51.493 -04 07 30.26 23.1G 612166 F51 C~2rXd 2018 01 06.23418 23 49 51.233 -04 03 34.67 23.5G 612166 F51 C~2rXd 2018 09 14.326400 23 57 59.32 -03 14 38.7 23.4G 612166 705 C~2r9h 2018 09 14.374030 23 57 59.10 -03 14 40.0 23.1G 612166 705 C~2r9h 2018 09 14.423360 23 57 58.90 -03 14 41.4 23.2G 612166 705 C~2r9h 2021 09 12.315900 00 11 32.213 -01 39 27.99 23.2G 612166 G37 C~552i 2021 09 12.375810 00 11 31.962 -01 39 29.48 612166 G37 C~552i 2021 09 12.436290 00 11 31.705 -01 39 31.19 612166 G37 C~552i 2024 11 01.100500 00 21 34.823 -00 25 37.48 23.0G 612166 G37 C~8WIB 2024 11 01.149770 00 21 34.638 -00 25 38.38 612166 G37 C~8WIB 2024 11 01.195920 00 21 34.476 -00 25 39.39 612166 G37 C~8WIB
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 0.00 0.00 -0.22
2 0.0002 0.00 0.14 0.00 -0.12
3 0.0735 0.00 0.36 0.00 -0.21
4 0.0737 0.00 0.25 0.00 -0.38
5 0.1420 0.00 0.31 0.00 0.24
6 0.1422 0.00 -0.60 0.00 -0.27
7 0.3279 0.00 0.14 0.00 -0.39
8 0.3306 0.00 0.17 0.00 -0.63
9 0.9777 0.00 0.50 0.00 -0.32
10 0.9778 0.00 0.06 0.00 -0.47
11 1.1357 0.00 0.23 0.00 0.18
12 1.1362 0.00 0.19 0.00 -0.35
13 1.1440 0.00 0.24 0.00 0.25
14 1.1440 0.00 -0.26 0.00 -0.03
15 1.1956 0.00 -0.33 0.00 -0.49
16 1.1957 0.00 -0.43 0.00 -0.75
17 1.9408 0.00 0.25 0.00 -0.30
18 1.9414 0.00 0.32 0.00 -0.32
19 1.9467 0.00 -0.27 0.00 0.89
20 1.9467 0.00 -0.44 0.00 0.94
21 1.9494 0.00 -0.45 0.00 0.74
22 1.9495 0.00 -0.26 0.00 0.54
23 6.7731 0.00 -0.35 0.00 0.91
24 6.7731 0.00 -0.52 0.00 0.80
25 6.7731 0.00 -0.57 0.00 0.79
26 6.7733 0.00 -0.53 0.00 0.74
27 9.2096 0.00 0.62 0.00 0.30
28 9.2096 0.00 0.51 0.00 0.31
29 9.2096 0.00 0.49 0.00 0.46
30 13.9910 0.00 0.12 0.00 -0.21
31 14.0074 0.00 0.20 0.00 -0.23
32 14.0074 0.00 -0.08 0.00 -0.25
33 14.0074 0.00 -0.25 0.00 -0.43
34 14.0075 0.00 0.35 0.00 -0.32
35 14.0101 0.00 -0.19 0.00 -0.14
36 14.0538 0.00 -0.04 0.00 0.00
37 14.0593 0.00 -0.04 0.00 -0.26
38 14.0621 0.00 -0.21 0.00 0.38
39 14.2805 0.00 -0.32 0.00 -0.03
40 14.3215 0.00 -0.06 0.00 -0.19
41 15.1077 0.00 -0.06 0.00 -0.18
42 15.1077 0.00 -0.09 0.00 0.17
43 15.1077 0.00 -0.15 0.00 0.23
44 15.1078 0.00 0.06 0.00 -0.04
45 15.1158 0.00 -0.09 0.00 -0.26
46 15.1159 0.00 0.03 0.00 -0.17
47 15.1159 0.00 0.29 0.00 0.03
48 15.1159 0.00 0.13 0.00 -0.18
49 15.2442 0.00 0.13 0.00 -0.18
50 15.2552 0.00 0.16 0.00 -0.15
51 17.0026 0.00 -0.38 0.00 -0.64
52 17.0027 0.00 -0.01 0.00 -0.05
53 17.0080 0.00 0.05 0.00 -0.01
54 17.1228 0.00 -0.10 0.00 0.09
55 17.1309 0.00 -0.01 0.00 -0.15
56 17.1528 0.00 0.23 0.00 -0.07
57 17.1611 0.00 -0.02 0.00 0.11
58 17.2867 0.00 -0.09 0.00 0.20
59 17.4343 0.00 -0.14 0.00 -0.17
60 18.1218 0.00 0.20 0.00 -0.16
61 18.1219 0.00 -0.04 0.00 -0.15
62 18.1221 0.00 0.13 0.00 -0.19
63 21.1170 0.00 -0.02 0.00 0.06
64 21.1171 0.00 -0.01 0.00 0.20
65 21.1173 0.00 -0.06 0.00 0.14
66 24.2540 0.00 0.18 0.00 0.21
67 24.2541 0.00 0.00 0.00 0.28
68 24.2542 0.00 0.01 0.00 0.17
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.
612166 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.200 43.200 43.200 ecceobj 0.025 0.025 0.025 incobj 3.136 3.136 3.136 qmin 40.624 40.624 40.624 qmax 45.647 45.648 45.646 amean 43.050 43.050 43.050 amin 42.722 42.722 42.722 amax 43.385 43.386 43.384 emean 0.033 0.033 0.033 emin 0.013 0.013 0.013 emax 0.052 0.052 0.052 imean 1.673 1.673 1.673 imin 0.680 0.680 0.680 imax 2.535 2.535 2.535 excite_mean 0.045 0.045 0.045 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 173.4 173.4 173.4 kozaiamp 180.0 179.9 180.0