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: 508869
# Created Wed Dec 25 02:07:11 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 64 observations of 64
# Arc: 20.13y
# First observation: 2002/11/07
# Last observation: 2022/12/26
# Chi-squared of fit: 53.73 DOF: 122 RMS: 0.16
# Min/Max residuals: -0.76 0.31
# Exact a, adot, b, bdot, g, gdot:
1.376164E-05 2.300897E-02 9.203739E-08 3.506416E-05 2.397983E-02 8.841433E-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
1.184807 60.229203 0.268530 0.019646 -0.950891 2452585.836433
# Heliocentric elements and errors
Epoch: 2452586.5000 = 2002/11/08
Mean Anomaly: 88.84224 +/- 0.000
Argument of Peri: 352.69642 +/- 0.000
Long of Asc Node: 334.94694 +/- 0.000
Inclination: 1.16283 +/- 0.000
Eccentricity: 0.02959720 +/- 0.0000
Semi-Major Axis: 42.64548550 +/- 0.0000
Time of Perihelion: 2427483.5341 +/- 0.0
Perihelion: 41.38329839 +/- 0.0000
Aphelion: 43.90767262 +/- 0.0000
Period (y) 278.4953 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 21.40566982 +/- 0.0000
Ecliptic Y 36.88763598 +/- 0.0000
Ecliptic Z 0.86228706 +/- 0.0000
Ecliptic XDOT -0.00223766 +/- 0.0000
Ecliptic YDOT 0.00138848 +/- 0.0000
Ecliptic ZDOT 0.00000630 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.65726586 +/- 0.0000
Geocenter to KBO 41.70173176 +/- 0.0000
# Hcoef: 5.71
The following table shows the complete astrometric record for 508869. 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 (508869) followed by the observatory code and reference code for the source of the astrometry.
2002 11 07.33569 03 51 09.53 +21 21 24.6 21.4R 508869 695 Cg8319 2002 11 07.43154 03 51 09.05 +21 21 23.2 508869 695 Cg8319 2002 11 27.20347 03 49 28.97 +21 16 21.3 21.5R 508869 688 Cg8319 2002 11 27.25209 03 49 28.71 +21 16 20.6 508869 688 Cg8319 2002 11 28.19340 03 49 23.95 +21 16 05.5 21.5R 508869 688 Cg8319 2002 11 28.28642 03 49 23.47 +21 16 04.0 508869 688 Cg8319 2002 12 02.22297 03 49 03.61 +21 15 02.1 21.4R 508869 688 Cg8319 2002 12 02.33831 03 49 03.03 +21 15 00.5 508869 688 Cg8319 2002 12 02.37072 03 49 02.85 +21 14 59.3 508869 688 Cg8319 2003 01 03.11302 03 46 43.91 +21 07 22.8 21.8R 508869 688 Ch0066 2003 01 03.22718 03 46 43.49 +21 07 21.6 508869 688 Ch0066 2003 11 20.30762 03 55 38.19 +21 34 56.1 21.4R 508869 695 Cj7011 2003 11 20.38911 03 55 37.77 +21 34 54.9 508869 695 Cj7011 2004 01 14.06667 03 51 40.05 +21 22 29.0 21.6R 508869 304 Cj7011 2004 01 14.08884 03 51 39.98 +21 22 28.8 508869 304 Cj7011 2004 01 14.10438 03 51 39.94 +21 22 28.7 508869 304 Cj7011 2004 02 16.80987 03 51 02.10 +21 19 39.3 21.8R 508869 493 Cs6919 2004 02 16.82146 03 51 02.11 +21 19 39.3 21.8R 508869 493 Cs6919 2004 02 16.82839 03 51 02.11 +21 19 39.3 21.8R 508869 493 Cs6919 2004 02 16.88524 03 51 02.14 +21 19 39.4 21.7R 508869 493 Cs6919 2004 02 16.89259 03 51 02.14 +21 19 39.3 21.7R 508869 493 Cs6919 2004 02 16.90001 03 51 02.14 +21 19 39.3 21.8R 508869 493 Cs6919 2004 02 17.81571 03 51 02.71 +21 19 39.4 21.8R 508869 493 Cs6919 2004 02 17.87784 03 51 02.75 +21 19 39.5 21.7R 508869 493 Cs6919 2004 02 17.92295 03 51 02.78 +21 19 39.5 21.8R 508869 493 Cs6919 2006 01 30.11317 04 02 02.14 +21 52 18.7 22.0R 508869 688 Cq1750 2006 01 30.25637 04 02 01.93 +21 52 18.2 508869 688 Cq1750 2008 09 21.91976 04 26 58.02 +22 54 14.9 23.3R 508869 250 S~06Aa 2008 09 21.92601 04 26 58.01 +22 54 14.9 508869 250 S~06Aa 2008 09 21.93296 04 26 58.00 +22 54 14.9 508869 250 S~06Aa 2008 09 21.93921 04 26 58.00 +22 54 14.8 508869 250 S~06Aa 2008 12 28.33039 04 20 14.15 +22 39 44.2 22.2R 508869 688 C~02cQ 2008 12 28.38950 04 20 13.86 +22 39 43.5 508869 688 C~02cQ 2010 10 11.47222 04 37 24.446 +23 16 04.56 22.1w 508869 F51 C~1vVD 2010 10 11.48624 04 37 24.413 +23 16 04.21 22.5w 508869 F51 C~1vVD 2010 10 11.50059 04 37 24.376 +23 16 04.40 22.4w 508869 F51 C~1vVD 2010 10 11.51467 04 37 24.322 +23 16 04.34 22.2w 508869 F51 C~1vVD 2011 10 25.42627 04 42 14.921 +23 25 19.84 22.4w 508869 F51 C~1vVD 2011 10 25.44078 04 42 14.870 +23 25 19.80 22.3w 508869 F51 C~1vVD 2011 10 25.45522 04 42 14.816 +23 25 19.66 22.3w 508869 F51 C~1vVD 2011 10 25.46967 04 42 14.759 +23 25 19.61 22.1w 508869 F51 C~1vVD 2014 12 01.32129 04 56 15.934 +23 48 25.17 21.4i 508869 F51 C~1vVD 2014 12 01.33327 04 56 15.899 +23 48 25.27 21.4i 508869 F51 C~1vVD 2014 12 01.35717 04 56 15.760 +23 48 24.85 21.4i 508869 F51 C~1vVD 2014 12 13.29539 04 55 12.927 +23 46 48.68 22.1w 508869 F51 C~1vVD 2014 12 13.30799 04 55 12.829 +23 46 48.71 21.9w 508869 F51 C~1vVD 2014 12 13.32068 04 55 12.797 +23 46 48.83 21.9w 508869 F51 C~1vVD 2014 12 13.33338 04 55 12.714 +23 46 48.56 22.0w 508869 F51 C~1vVD 2015 01 22.34843 04 52 12.950 +23 41 34.06 22.1w 508869 F51 C~1vVD 2015 01 22.36237 04 52 12.905 +23 41 34.08 22.3w 508869 F51 C~1vVD 2015 01 22.37629 04 52 12.874 +23 41 33.98 22.1w 508869 F51 C~1vVD 2015 01 22.39018 04 52 12.818 +23 41 33.83 22.2w 508869 F51 C~1vVD 2015 01 24.33193 04 52 06.629 +23 41 21.22 22.2w 508869 F51 C~1vVD 2015 01 24.34645 04 52 06.589 +23 41 21.38 22.1w 508869 F51 C~1vVD 2015 01 24.36097 04 52 06.530 +23 41 20.95 22.1w 508869 F51 C~1vVD 2017 03 24.22518 05 02 48.963 +23 55 00.51 22.1w 508869 568 C~2WX9 2017 03 24.26197 05 02 49.058 +23 55 00.65 22.5w 508869 568 C~2WX9 2017 03 29.23464 05 03 02.761 +23 55 11.27 22.6w 508869 568 C~2WX9 2019 10 25.468310 05 27 05.65 +24 21 16.3 22.1G 508869 705 C~3TtD 2019 10 26.319030 05 27 03.04 +24 21 15.2 22.2G 508869 705 C~3TtD 2019 10 26.328600 05 27 03.03 +24 21 15.1 22.2G 508869 705 C~3TtD 2019 10 26.501470 05 27 02.47 +24 21 15.1 22.2G 508869 705 C~3TtD 2022 12 26.293090 05 39 10.226 +24 27 51.98 22.3G 508869 G37 C~6Azu 2022 12 26.347720 05 39 09.947 +24 27 51.70 508869 G37 C~6Azu
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 0.31 0.00 0.05
2 0.0003 0.00 0.28 0.00 0.04
3 0.0544 0.00 -0.32 0.00 0.07
4 0.0545 0.00 -0.46 0.00 0.13
5 0.0571 0.00 -0.15 0.00 -0.11
6 0.0574 0.00 -0.16 0.00 -0.15
7 0.0681 0.00 -0.03 0.00 0.07
8 0.0685 0.00 0.08 0.00 0.29
9 0.0685 0.00 -0.15 0.00 -0.39
10 0.1554 0.00 0.26 0.00 -0.06
11 0.1558 0.00 0.01 0.00 0.11
12 1.0348 0.00 -0.23 0.00 -0.11
13 1.0351 0.00 -0.17 0.00 -0.09
14 1.1848 0.00 0.07 0.00 -0.08
15 1.1848 0.00 -0.05 0.00 -0.07
16 1.1849 0.00 0.00 0.00 -0.01
17 1.2771 0.00 0.08 0.00 -0.01
18 1.2772 0.00 0.15 0.00 -0.01
19 1.2772 0.00 0.10 0.00 -0.01
20 1.2773 0.00 0.12 0.00 0.10
21 1.2774 0.00 0.06 0.00 0.01
22 1.2774 0.00 0.01 0.00 0.01
23 1.2799 0.00 0.04 0.00 -0.04
24 1.2801 0.00 0.08 0.00 0.06
25 1.2802 0.00 0.11 0.00 0.06
26 3.2301 0.00 0.16 0.00 -0.07
27 3.2304 0.00 0.25 0.00 0.26
28 5.8743 0.00 -0.04 0.00 0.20
29 5.8743 0.00 -0.07 0.00 0.21
30 5.8743 0.00 -0.09 0.00 0.22
31 5.8743 0.00 0.03 0.00 0.12
32 6.1410 0.00 -0.34 0.00 0.10
33 6.1411 0.00 -0.76 0.00 0.08
34 7.9265 0.00 0.01 0.00 0.11
35 7.9265 0.00 0.12 0.00 -0.19
36 7.9265 0.00 0.19 0.00 0.06
37 7.9266 0.00 -0.01 0.00 0.05
38 8.9640 0.00 0.03 0.00 -0.02
39 8.9640 0.00 0.10 0.00 0.02
40 8.9641 0.00 0.12 0.00 -0.04
41 8.9641 0.00 0.10 0.00 -0.00
42 12.0657 0.00 -0.16 0.00 -0.14
43 12.0657 0.00 0.27 0.00 0.05
44 12.0658 0.00 0.09 0.00 -0.19
45 12.0985 0.00 0.11 0.00 -0.23
46 12.0985 0.00 -0.36 0.00 -0.10
47 12.0985 0.00 0.17 0.00 0.12
48 12.0986 0.00 -0.06 0.00 -0.04
49 12.2081 0.00 -0.11 0.00 -0.18
50 12.2081 0.00 -0.08 0.00 -0.07
51 12.2082 0.00 0.15 0.00 -0.07
52 12.2082 0.00 0.01 0.00 -0.13
53 12.2135 0.00 0.01 0.00 -0.21
54 12.2136 0.00 0.10 0.00 0.04
55 12.2136 0.00 -0.09 0.00 -0.30
56 14.3762 0.00 -0.02 0.00 -0.10
57 14.3763 0.00 0.06 0.00 -0.01
58 14.3899 0.00 0.03 0.00 0.01
59 16.9641 0.00 0.21 0.00 0.11
60 16.9664 0.00 -0.12 0.00 0.04
61 16.9664 0.00 0.18 0.00 -0.05
62 16.9669 0.00 0.01 0.00 0.15
63 20.1340 0.00 -0.21 0.00 0.31
64 20.1342 0.00 -0.03 0.00 0.20
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.
508869 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.787 42.787 42.787 ecceobj 0.034 0.034 0.034 incobj 1.162 1.162 1.162 qmin 39.912 39.908 39.919 qmax 45.265 45.255 45.275 amean 42.490 42.490 42.490 amin 42.163 42.164 42.162 amax 42.830 42.830 42.829 emean 0.034 0.034 0.034 emin 0.006 0.006 0.006 emax 0.057 0.057 0.057 imean 2.781 2.781 2.781 imin 1.243 1.243 1.243 imax 3.707 3.708 3.707 excite_mean 0.060 0.060 0.060 fracstop 1.000 1.000 1.000 cjmean 3.079 3.079 3.079 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 192.4 192.3 192.6 kozaiamp 180.0 180.0 180.0