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: 576212
# Created Fri Nov 22 02:07:36 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 69 observations of 69
# Arc: 22.22y
# First observation: 1999/03/21
# Last observation: 2021/06/08
# Chi-squared of fit: 47.68 DOF: 132 RMS: 0.15
# Min/Max residuals: -0.35 0.39
# Exact a, adot, b, bdot, g, gdot:
1.575312E-05 2.328813E-02 -2.916646E-06 -6.037480E-03 2.480391E-02 1.295829E-05
# 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
8.329918 -160.635159 0.327695 0.137286 -0.939366 2451258.855900
# Heliocentric elements and errors
Epoch: 2451258.5000 = 1999/03/21
Mean Anomaly: 196.00581 +/- 0.000
Argument of Peri: 315.03128 +/- 0.000
Long of Asc Node: 47.58222 +/- 0.000
Inclination: 16.59969 +/- 0.000
Eccentricity: 0.02442970 +/- 0.0000
Semi-Major Axis: 40.30111174 +/- 0.0000
Time of Perihelion: 2493828.1360 +/- 0.0
Perihelion: 39.31656753 +/- 0.0000
Aphelion: 41.28565595 +/- 0.0000
Period (y) 255.8490 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -38.63000170 +/- 0.0000
Ecliptic Y -13.23292962 +/- 0.0000
Ecliptic Z 5.84063969 +/- 0.0000
Ecliptic XDOT 0.00075777 +/- 0.0000
Ecliptic YDOT -0.00244873 +/- 0.0000
Ecliptic ZDOT -0.00065916 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.24925288 +/- 0.0000
Geocenter to KBO 40.31624816 +/- 0.0000
# Hcoef: 6.50
The following table shows the complete astrometric record for 576212. 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 (576212) followed by the observatory code and reference code for the source of the astrometry.
1999 03 21.355157 13 24 04.00 +00 08 17.9 22.4V 576212 645 C~2VVJ 1999 03 21.355986 13 24 04.01 +00 08 18.0 22.1V 576212 645 C~2VVJ 1999 03 21.358474 13 24 04.00 +00 08 18.4 23.2V 576212 645 C~2VVJ 2000 04 06.340535 13 27 13.26 -00 33 31.5 22.5V 576212 645 C~2VVJ 2000 04 06.341364 13 27 13.26 -00 33 31.6 22.2V 576212 645 C~2VVJ 2000 04 06.343852 13 27 13.26 -00 33 31.5 23.5V 576212 645 C~2VVJ 2000 04 25.252105 13 25 44.64 -00 26 08.6 22.4V 576212 645 C~2VVJ 2000 04 25.252934 13 25 44.64 -00 26 08.5 22.0V 576212 645 C~2VVJ 2000 04 25.255422 13 25 44.64 -00 26 08.5 23.8V 576212 645 C~2VVJ 2006 05 25.199169 13 50 19.36 -05 13 10.4 22.3V 576212 645 C~2VVJ 2006 05 25.199998 13 50 19.35 -05 13 10.5 21.7V 576212 645 C~2VVJ 2006 05 25.202486 13 50 19.36 -05 13 10.4 23.7V 576212 645 C~2VVJ 2011 04 27.38629 14 15 01.161 -09 24 56.54 22.7w 576212 F51 C~1w3q 2011 04 27.43036 14 15 00.938 -09 24 55.71 22.3w 576212 F51 C~1w3q 2012 04 27.43132 14 19 32.237 -10 12 50.16 22.7w 576212 F51 C~1w3q 2012 04 27.44629 14 19 32.165 -10 12 49.88 22.9w 576212 F51 C~1w3q 2012 04 27.46128 14 19 32.082 -10 12 49.24 22.5w 576212 F51 C~1w3q 2012 04 27.47627 14 19 32.016 -10 12 49.28 22.4w 576212 F51 C~1w3q 2012 05 21.35214 14 17 39.796 -10 05 19.35 22.5w 576212 F51 C~1w3q 2012 05 21.36665 14 17 39.739 -10 05 19.16 23.0w 576212 F51 C~1w3q 2012 05 21.38115 14 17 39.674 -10 05 19.12 22.8w 576212 F51 C~1w3q 2012 05 21.39568 14 17 39.604 -10 05 18.76 22.6w 576212 F51 C~1w3q 2013 01 17.62987 14 27 59.693 -11 19 00.84 22.8w 576212 F51 C~1w3q 2013 01 17.63527 14 27 59.700 -11 19 00.97 22.7w 576212 F51 C~1w3q 2013 05 09.40174 14 23 11.944 -10 56 55.57 22.3w 576212 F51 C~1w3q 2013 05 09.41572 14 23 11.889 -10 56 55.63 22.7w 576212 F51 C~1w3q 2013 05 09.42969 14 23 11.825 -10 56 55.09 22.4w 576212 F51 C~1w3q 2013 05 09.44367 14 23 11.740 -10 56 54.77 22.3w 576212 F51 C~1w3q 2014 03 27.54407 14 31 10.520 -11 58 48.49 22.4w 576212 F51 C~1w3q 2014 04 05.52518 14 30 33.039 -11 56 02.90 22.6w 576212 F51 C~1w3q 2014 04 05.53575 14 30 32.980 -11 56 02.29 22.7w 576212 F51 C~1w3q 2014 04 05.55687 14 30 32.894 -11 56 02.23 22.6w 576212 F51 C~1w3q 2014 04 23.41183 14 29 09.524 -11 50 05.61 22.6w 576212 F51 C~1w3q 2014 05 21.33638 14 26 55.345 -11 41 13.80 22.4G 576212 F51 C~2rXt 2014 05 21.34988 14 26 55.305 -11 41 13.45 22.5G 576212 F51 C~2rXt 2014 05 21.36336 14 26 55.243 -11 41 13.06 22.6G 576212 F51 C~2rXt 2014 05 21.37684 14 26 55.162 -11 41 13.01 22.0G 576212 F51 C~2rXt 2014 05 27.33920 14 26 28.908 -11 39 37.67 22.3G 576212 F51 C~2rXt 2014 05 27.35028 14 26 28.859 -11 39 37.33 22.6G 576212 F51 C~2rXt 2014 05 27.36139 14 26 28.815 -11 39 37.40 22.9G 576212 F51 C~2rXt 2014 05 27.37249 14 26 28.752 -11 39 37.17 22.5G 576212 F51 C~2rXt 2014 05 29.37831 14 26 20.260 -11 39 07.06 22.8G 576212 F51 C~2rXt 2014 06 18.37180 14 25 07.934 -11 35 22.15 22.9G 576212 F51 C~2rXt 2014 06 28.29144 14 24 42.144 -11 34 27.09 22.6G 576212 F51 C~2rXt 2014 06 28.30219 14 24 42.109 -11 34 26.77 22.9G 576212 F51 C~2rXt 2014 06 28.31290 14 24 42.085 -11 34 26.72 22.5G 576212 F51 C~2rXt 2014 06 28.32363 14 24 42.061 -11 34 26.70 22.9G 576212 F51 C~2rXt 2015 01 20.63787 14 37 09.306 -12 51 28.49 23.0G 576212 F51 C~2rXt 2015 01 22.65648 14 37 12.991 -12 51 46.64 22.8G 576212 F51 C~2rXt 2015 03 17.55240 14 36 27.152 -12 48 36.15 22.9G 576212 F51 C~2rXt 2015 04 25.29654 14 33 42.30 -12 37 03.1 22.8V 576212 W84 C~2fc3 2015 04 25.33103 14 33 42.13 -12 37 02.4 576212 W84 C~3vQP 2015 04 25.36555 14 33 41.96 -12 37 01.8 576212 W84 C~2fc3 2015 04 25.48321 14 33 41.380 -12 36 59.29 22.7G 576212 F51 C~2rXt 2015 04 26.29237 14 33 37.43 -12 36 43.2 576212 W84 C~2fc3 2015 04 26.32771 14 33 37.25 -12 36 42.6 576212 W84 C~3vQP 2015 04 26.36217 14 33 37.07 -12 36 41.8 576212 W84 C~2fc3 2015 05 22.39218 14 31 31.532 -12 28 34.73 22.7G 576212 F51 C~2rXt 2015 05 22.40544 14 31 31.451 -12 28 34.63 22.8G 576212 F51 C~2rXt 2016 04 05.47418 14 39 54.415 -13 30 15.84 22.7G 576212 F51 C~2rXt 2016 04 17.46270 14 38 59.638 -13 26 34.96 22.3G 576212 F51 C~2rXt 2016 04 30.41390 14 37 56.480 -13 22 25.33 22.5G 576212 F51 C~2rXt 2016 04 30.42650 14 37 56.412 -13 22 24.75 22.5G 576212 F51 C~2rXt 2016 04 30.43912 14 37 56.352 -13 22 24.52 22.9G 576212 F51 C~2rXt 2016 04 30.45174 14 37 56.273 -13 22 24.63 22.7G 576212 F51 C~2rXt 2017 02 24.65327 14 46 38.086 -14 24 32.04 22.7G 576212 F51 C~2rXt 2021 06 08.288773 14 58 57.840 -17 03 30.21 22.6w 576212 F51 C~4qHB 2021 06 08.299741 14 58 57.785 -17 03 30.10 22.6w 576212 F51 C~4qHB 2021 06 08.321725 14 58 57.680 -17 03 29.62 22.3w 576212 F51 C~4qHB
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 -0.25 0.00 -0.11
2 0.0000 0.00 -0.04 0.00 -0.03
3 0.0000 0.00 -0.03 0.00 0.30
4 1.0458 0.00 -0.06 0.00 0.15
5 1.0458 0.00 -0.01 0.00 0.03
6 1.0458 0.00 0.17 0.00 0.07
7 1.0976 0.00 -0.06 0.00 -0.33
8 1.0976 0.00 -0.01 0.00 -0.24
9 1.0976 0.00 0.17 0.00 -0.29
10 7.1782 0.00 -0.01 0.00 0.12
11 7.1782 0.00 -0.11 0.00 0.01
12 7.1782 0.00 0.19 0.00 0.08
13 12.1014 0.00 -0.04 0.00 0.19
14 12.1015 0.00 -0.13 0.00 0.10
15 13.1036 0.00 0.11 0.00 0.09
16 13.1036 0.00 0.15 0.00 0.06
17 13.1036 0.00 0.02 0.00 0.39
18 13.1037 0.00 0.14 0.00 0.04
19 13.1691 0.00 -0.04 0.00 0.18
20 13.1691 0.00 0.08 0.00 0.13
21 13.1691 0.00 0.07 0.00 -0.06
22 13.1692 0.00 -0.00 0.00 0.06
23 13.8296 0.00 0.23 0.00 0.30
24 13.8297 0.00 0.19 0.00 0.22
25 14.1357 0.00 0.04 0.00 -0.01
26 14.1357 0.00 0.24 0.00 -0.33
27 14.1357 0.00 0.30 0.00 -0.06
28 14.1358 0.00 0.04 0.00 -0.01
29 15.0176 0.00 0.07 0.00 -0.12
30 15.0422 0.00 0.06 0.00 -0.09
31 15.0422 0.00 -0.12 0.00 0.32
32 15.0423 0.00 0.01 0.00 -0.03
33 15.0912 0.00 0.08 0.00 0.09
34 15.1676 0.00 -0.27 0.00 -0.16
35 15.1677 0.00 0.07 0.00 -0.03
36 15.1677 0.00 0.07 0.00 0.13
37 15.1678 0.00 -0.21 0.00 -0.04
38 15.1841 0.00 -0.11 0.00 0.01
39 15.1841 0.00 -0.12 0.00 0.18
40 15.1841 0.00 -0.05 0.00 -0.06
41 15.1842 0.00 -0.27 0.00 0.00
42 15.1897 0.00 -0.26 0.00 0.24
43 15.2444 0.00 0.06 0.00 -0.24
44 15.2716 0.00 0.13 0.00 -0.34
45 15.2716 0.00 -0.03 0.00 -0.06
46 15.2716 0.00 -0.02 0.00 -0.05
47 15.2716 0.00 -0.01 0.00 -0.07
48 15.8365 0.00 0.00 0.00 0.05
49 15.8420 0.00 -0.19 0.00 -0.12
50 15.9896 0.00 -0.01 0.00 0.17
51 16.0957 0.00 0.00 0.00 -0.09
52 16.0958 0.00 0.02 0.00 -0.08
53 16.0959 0.00 0.03 0.00 -0.18
54 16.0962 0.00 -0.15 0.00 0.20
55 16.0984 0.00 0.11 0.00 0.04
56 16.0985 0.00 0.05 0.00 -0.07
57 16.0986 0.00 -0.09 0.00 0.04
58 16.1698 0.00 0.27 0.00 0.03
59 16.1699 0.00 -0.02 0.00 -0.09
60 17.0434 0.00 0.02 0.00 -0.00
61 17.0763 0.00 0.00 0.00 -0.03
62 17.1117 0.00 -0.02 0.00 -0.26
63 17.1118 0.00 -0.09 0.00 0.08
64 17.1118 0.00 -0.04 0.00 0.06
65 17.1118 0.00 -0.27 0.00 -0.29
66 17.9337 0.00 0.11 0.00 -0.35
67 22.2175 0.00 0.10 0.00 0.01
68 22.2175 0.00 -0.01 0.00 -0.03
69 22.2176 0.00 -0.16 0.00 0.15
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.
576212 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 40.312 40.312 40.312 ecceobj 0.024 0.024 0.024 incobj 16.606 16.606 16.606 qmin 39.036 39.036 39.037 qmax 42.205 42.205 42.205 amean 40.576 40.576 40.576 amin 40.281 40.282 40.280 amax 40.879 40.879 40.879 emean 0.019 0.019 0.019 emin 0.004 0.004 0.004 emax 0.034 0.034 0.034 imean 14.772 14.772 14.772 imin 13.879 13.879 13.879 imax 15.875 15.875 15.875 excite_mean 0.256 0.256 0.256 fracstop 1.000 1.000 1.000 cjmean 2.987 2.987 2.987 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 176.4 176.3 176.4 kozaiamp 180.0 180.0 180.0