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: 612238
# Created Wed Dec 25 02:07:39 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 90 observations of 90
# Arc: 19.97y
# First observation: 2001/08/20
# Last observation: 2021/08/08
# Chi-squared of fit: 299.78 DOF: 174 RMS: 0.32
# Min/Max residuals: -0.74 1.40
# Exact a, adot, b, bdot, g, gdot:
1.569886E-05 2.245254E-02 -7.679403E-07 -2.014970E-03 2.347615E-02 -4.548829E-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
0.420734 -36.608462 -0.060241 0.007318 -1.010814 2452141.615073
# Heliocentric elements and errors
Epoch: 2452142.5000 = 2001/08/21
Mean Anomaly: 307.58879 +/- 0.000
Argument of Peri: 230.31429 +/- 0.000
Long of Asc Node: 148.04628 +/- 0.000
Inclination: 5.14741 +/- 0.000
Eccentricity: 0.02681838 +/- 0.0000
Semi-Major Axis: 44.31046670 +/- 0.0000
Time of Perihelion: 2467827.3212 +/- 0.0
Perihelion: 43.12213189 +/- 0.0000
Aphelion: 45.49880152 +/- 0.0000
Period (y) 294.9631 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 35.04292448 +/- 0.0000
Ecliptic Y -25.94979822 +/- 0.0000
Ecliptic Z 0.31275211 +/- 0.0000
Ecliptic XDOT 0.00151168 +/- 0.0000
Ecliptic YDOT 0.00213387 +/- 0.0000
Ecliptic ZDOT -0.00023516 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.60616483 +/- 0.0000
Geocenter to KBO 42.59646792 +/- 0.0000
# Hcoef: 6.74
The following table shows the complete astrometric record for 612238. 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 (612238) followed by the observatory code and reference code for the source of the astrometry.
2001 08 20.11433 21 42 19.16 -13 19 28.7 21.6R 612238 807 Cd7926 2001 08 20.19231 21 42 18.80 -13 19 30.6 612238 807 Cd7926 2001 08 21.13579 21 42 14.59 -13 19 53.3 21.6R 612238 807 Cd7926 2001 08 21.20927 21 42 14.27 -13 19 55.0 612238 807 Cd7926 2001 09 12.23737 21 40 40.86 -13 28 17.9 22.5R 612238 695 Cd7926 2001 09 12.28443 21 40 40.66 -13 28 18.7 612238 695 Cd7926 2004 10 11.14657 21 54 25.89 -12 39 57.3 22.9R 612238 695 Cl9814 2004 10 11.23773 21 54 25.69 -12 39 58.0 612238 695 Cl9814 2004 11 10.13073 21 53 50.72 -12 43 41.0 22.4R 612238 695 Cl9814 2004 11 11.10537 21 53 50.93 -12 43 41.5 612238 695 Cl9814 2005 06 07.39615 22 06 33.75 -11 39 24.2 22.6R 612238 304 Cn6481 2005 06 08.35242 22 06 33.06 -11 39 29.0 612238 304 Cn6481 2006 09 24.13786 22 05 29.35 -11 54 55.1 22.4R 612238 688 Cs0792 2006 09 24.23210 22 05 29.01 -11 54 57.7 612238 688 Cs0792 2007 05 07.72531 22 16 06.13 -11 00 09.9 23.4R 612238 250 S~06AP 2007 05 07.73225 22 16 06.15 -11 00 09.8 612238 250 S~06AP 2007 05 07.73920 22 16 06.16 -11 00 09.7 612238 250 S~06AP 2007 05 07.74614 22 16 06.18 -11 00 09.6 612238 250 S~06AP 2010 08 18.50635 22 28 25.497 -10 14 34.08 23.0G 612238 F51 C~343g 2010 08 19.42649 22 28 21.537 -10 14 58.61 23.5G 612238 F51 C~343g 2010 09 17.17291 22 26 17.71 -10 27 26.8 21.8R 612238 688 C~0NFN 2010 09 17.21874 22 26 17.49 -10 27 29.0 612238 688 C~0NFN 2011 08 29.43791 22 32 43.699 -09 57 06.89 22.3G 612238 F51 C~343g 2011 08 29.45208 22 32 43.628 -09 57 07.63 22.2G 612238 F51 C~343g 2011 08 29.46619 22 32 43.575 -09 57 07.64 23.1G 612238 F51 C~343g 2011 08 29.48026 22 32 43.509 -09 57 07.92 22.3G 612238 F51 C~343g 2011 09 06.48182 22 32 08.605 -10 00 41.81 23.0G 612238 F51 C~343g 2012 08 14.48022 22 38 48.484 -09 28 18.03 24.5G 612238 F51 C~343g 2013 08 09.44706 22 44 12.435 -09 03 16.63 22.0G 612238 F51 C~343g 2013 08 09.46130 22 44 12.379 -09 03 16.76 22.9G 612238 F51 C~343g 2013 08 09.47555 22 44 12.318 -09 03 17.10 23.1G 612238 F51 C~343g 2013 08 17.49365 22 43 39.652 -09 06 46.99 22.5G 612238 F51 C~343g 2013 08 18.48409 22 43 35.495 -09 07 13.19 22.1G 612238 F51 C~343g 2013 08 31.41573 22 42 39.872 -09 13 05.35 23.4G 612238 F51 C~343g 2013 08 31.43021 22 42 39.818 -09 13 05.78 22.7G 612238 F51 C~343g 2013 08 31.44468 22 42 39.723 -09 13 05.95 22.9G 612238 F51 C~343g 2013 08 31.45915 22 42 39.671 -09 13 06.53 23.3G 612238 F51 C~343g 2013 10 06.34432 22 40 14.132 -09 28 04.10 21.9G 612238 F51 C~343g 2014 06 26.56127 22 51 12.866 -08 26 31.70 23.0G 612238 F51 C~343g 2014 07 08.52700 22 50 53.194 -08 29 02.58 23.5G 612238 F51 C~343g 2014 07 25.52993 22 50 08.010 -08 34 18.34 22.9G 612238 F51 C~343g 2014 07 25.54204 22 50 07.966 -08 34 18.71 22.9G 612238 F51 C~343g 2014 07 25.55417 22 50 07.930 -08 34 18.73 23.2G 612238 F51 C~343g 2014 07 25.56627 22 50 07.889 -08 34 19.11 23.0G 612238 F51 C~343g 2014 08 22.43052 22 48 21.906 -08 45 55.44 23.9G 612238 F51 C~343g 2014 08 22.44226 22 48 21.850 -08 45 55.44 23.5G 612238 F51 C~343g 2014 08 22.45398 22 48 21.808 -08 45 56.01 22.7G 612238 F51 C~343g 2014 08 22.46566 22 48 21.763 -08 45 56.54 22.8G 612238 F51 C~343g 2014 08 23.48266 22 48 17.421 -08 46 24.16 22.9G 612238 F51 C~343g 2014 09 18.29340 22 46 26.270 -08 58 05.57 23.4G 612238 F51 C~343g 2014 09 18.30500 22 46 26.229 -08 58 05.83 22.5G 612238 F51 C~343g 2014 09 18.36325 22 46 25.971 -08 58 07.16 22.9G 612238 F51 C~343g 2014 09 18.37496 22 46 25.903 -08 58 07.75 23.1G 612238 F51 C~343g 2014 11 10.24071 22 43 53.238 -09 13 32.05 23.8G 612238 F51 C~343g 2014 11 25.24491 22 43 47.160 -09 14 01.29 23.5G 612238 F51 C~343g 2015 07 23.46491 22 55 14.797 -08 10 18.63 23.6G 612238 F51 C~343g 2015 08 21.42510 22 53 28.617 -08 22 08.61 23.0G 612238 F51 C~343g 2015 11 04.29873 22 48 59.715 -08 50 02.56 22.8G 612238 F51 C~343g 2016 07 11.51675 23 00 41.961 -07 43 29.84 23.4G 612238 F51 C~343g 2016 07 11.52879 23 00 41.983 -07 43 29.85 23.3G 612238 F51 C~343g 2016 07 11.54086 23 00 41.951 -07 43 30.12 22.7G 612238 F51 C~343g 2016 07 11.55294 23 00 41.910 -07 43 30.23 22.9G 612238 F51 C~343g 2016 07 14.56033 23 00 35.183 -07 44 20.32 23.3G 612238 F51 C~343g 2016 07 14.57232 23 00 35.173 -07 44 20.25 23.3G 612238 F51 C~343g 2016 07 14.58432 23 00 35.108 -07 44 20.41 22.3G 612238 F51 C~343g 2016 07 14.59629 23 00 35.071 -07 44 20.95 23.1G 612238 F51 C~343g 2016 08 03.51032 22 59 35.925 -07 51 16.85 23.0G 612238 F51 C~343g 2016 08 27.48697 22 58 00.754 -08 01 49.51 22.5G 612238 F51 C~343g 2016 10 25.25882 22 54 17.558 -08 25 08.44 23.1G 612238 F51 C~343g 2016 10 25.26996 22 54 17.523 -08 25 08.67 23.1G 612238 F51 C~343g 2016 10 25.28111 22 54 17.469 -08 25 09.29 23.2G 612238 F51 C~343g 2016 10 25.29230 22 54 17.452 -08 25 09.07 23.0G 612238 F51 C~343g 2017 08 01.52593 23 04 43.066 -07 26 43.53 23.4G 612238 F51 C~343g 2017 08 01.53783 23 04 43.027 -07 26 43.73 22.9G 612238 F51 C~343g 2017 08 01.54969 23 04 42.980 -07 26 44.00 22.8G 612238 F51 C~343g 2017 08 01.56160 23 04 42.936 -07 26 44.16 23.0G 612238 F51 C~343g 2017 08 17.48072 23 03 44.037 -07 33 25.86 23.0G 612238 F51 C~343g 2017 08 17.49178 23 03 43.971 -07 33 25.78 23.1G 612238 F51 C~343g 2017 08 17.50283 23 03 43.931 -07 33 26.16 22.9G 612238 F51 C~343g 2017 09 14.40666 23 01 45.323 -07 46 21.63 22.2G 612238 F51 C~343g 2017 09 14.41865 23 01 45.275 -07 46 22.52 23.1G 612238 F51 C~343g 2017 09 14.43058 23 01 45.245 -07 46 22.73 22.5G 612238 F51 C~343g 2017 09 14.44251 23 01 45.176 -07 46 23.26 22.9G 612238 F51 C~343g 2017 09 15.40076 23 01 41.082 -07 46 49.40 21.9G 612238 F51 C~343g 2017 09 15.41188 23 01 41.014 -07 46 49.69 22.6G 612238 F51 C~343g 2017 09 15.42308 23 01 40.981 -07 46 49.90 22.8G 612238 F51 C~343g 2017 09 15.43418 23 01 40.914 -07 46 50.51 22.7G 612238 F51 C~343g 2021 08 08.338320 23 24 17.441 -05 52 17.58 22.9G 612238 G37 C~4xMb 2021 08 08.383720 23 24 17.276 -05 52 18.47 612238 G37 C~4xMb 2021 08 08.431920 23 24 17.123 -05 52 19.78 612238 G37 C~4xMb
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 -0.07 0.00 -0.15
2 0.0002 0.00 -0.16 0.00 -0.19
3 0.0028 0.00 -0.19 0.00 -0.35
4 0.0030 0.00 0.01 0.00 -0.29
5 0.0633 0.00 0.10 0.00 -0.45
6 0.0634 0.00 -0.09 0.00 -0.25
7 3.1431 0.00 -0.22 0.00 -0.06
8 3.1434 0.00 0.15 0.00 0.50
9 3.2252 0.00 -0.21 0.00 -0.08
10 3.2279 0.00 0.28 0.00 -0.27
11 3.7982 0.00 -0.39 0.00 0.05
12 3.8008 0.00 -0.74 0.00 0.10
13 5.0952 0.00 -0.04 0.00 0.41
14 5.0955 0.00 0.08 0.00 -0.21
15 5.7128 0.00 1.02 0.00 0.79
16 5.7128 0.00 1.08 0.00 0.81
17 5.7129 0.00 1.00 0.00 0.83
18 5.7129 0.00 1.07 0.00 0.86
19 8.9949 0.00 -0.02 0.00 -0.32
20 8.9974 0.00 -0.09 0.00 -0.55
21 9.0761 0.00 -0.29 0.00 1.40
22 9.0763 0.00 -0.74 0.00 0.32
23 10.0242 0.00 -0.14 0.00 -0.09
24 10.0242 0.00 -0.26 0.00 -0.45
25 10.0242 0.00 -0.11 0.00 -0.08
26 10.0243 0.00 -0.16 0.00 0.02
27 10.0462 0.00 0.02 0.00 0.06
28 10.9853 0.00 -0.29 0.00 -0.25
29 11.9708 0.00 -0.27 0.00 -0.33
30 11.9708 0.00 -0.25 0.00 -0.10
31 11.9709 0.00 -0.30 0.00 -0.08
32 11.9928 0.00 -0.23 0.00 -0.16
33 11.9955 0.00 -0.30 0.00 0.14
34 12.0309 0.00 0.02 0.00 -0.06
35 12.0310 0.00 0.18 0.00 -0.09
36 12.0310 0.00 -0.28 0.00 0.14
37 12.0311 0.00 -0.10 0.00 -0.05
38 12.1293 0.00 -0.06 0.00 -0.11
39 12.8500 0.00 0.08 0.00 -0.40
40 12.8827 0.00 -0.23 0.00 -0.31
41 12.9293 0.00 -0.02 0.00 -0.25
42 12.9293 0.00 -0.09 0.00 -0.36
43 12.9293 0.00 -0.04 0.00 -0.12
44 12.9294 0.00 -0.06 0.00 -0.24
45 13.0057 0.00 -0.12 0.00 -0.17
46 13.0057 0.00 -0.20 0.00 0.15
47 13.0057 0.00 -0.07 0.00 -0.10
48 13.0058 0.00 0.01 0.00 -0.31
49 13.0085 0.00 -0.15 0.00 -0.15
50 13.0792 0.00 0.07 0.00 -0.09
51 13.0792 0.00 0.19 0.00 -0.05
52 13.0794 0.00 0.04 0.00 0.14
53 13.0794 0.00 -0.23 0.00 -0.15
54 13.2242 0.00 0.11 0.00 -0.17
55 13.2652 0.00 0.57 0.00 0.30
56 13.9229 0.00 -0.18 0.00 -0.19
57 14.0022 0.00 0.22 0.00 -0.01
58 14.2072 0.00 0.39 0.00 0.63
59 14.8923 0.00 -0.67 0.00 -0.33
60 14.8923 0.00 0.06 0.00 -0.15
61 14.8923 0.00 -0.02 0.00 -0.23
62 14.8924 0.00 -0.24 0.00 -0.14
63 14.9006 0.00 0.12 0.00 -0.12
64 14.9006 0.00 0.40 0.00 0.16
65 14.9007 0.00 -0.13 0.00 0.21
66 14.9007 0.00 -0.25 0.00 -0.13
67 14.9552 0.00 -0.09 0.00 0.01
68 15.0209 0.00 -0.19 0.00 -0.14
69 15.1818 0.00 0.38 0.00 0.25
70 15.1818 0.00 0.28 0.00 0.19
71 15.1818 0.00 -0.10 0.00 -0.27
72 15.1819 0.00 0.07 0.00 0.12
73 15.9491 0.00 0.05 0.00 -0.20
74 15.9491 0.00 0.08 0.00 -0.13
75 15.9492 0.00 -0.02 0.00 -0.12
76 15.9492 0.00 -0.07 0.00 -0.00
77 15.9928 0.00 0.04 0.00 -0.04
78 15.9928 0.00 -0.27 0.00 0.34
79 15.9929 0.00 -0.19 0.00 0.26
80 16.0692 0.00 0.08 0.00 0.58
81 16.0693 0.00 0.14 0.00 0.02
82 16.0693 0.00 0.48 0.00 0.14
83 16.0693 0.00 0.22 0.00 -0.06
84 16.0720 0.00 0.40 0.00 0.08
85 16.0720 0.00 0.11 0.00 0.09
86 16.0720 0.00 0.35 0.00 0.19
87 16.0721 0.00 0.07 0.00 -0.12
88 19.9678 0.00 0.06 0.00 0.00
89 19.9679 0.00 -0.06 0.00 0.22
90 19.9680 0.00 0.15 0.00 0.08
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.
612238 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.550 44.550 44.550 ecceobj 0.030 0.030 0.030 incobj 5.136 5.136 5.136 qmin 42.246 42.250 42.245 qmax 46.841 46.841 46.841 amean 44.452 44.453 44.453 amin 44.113 44.113 44.113 amax 44.801 44.801 44.801 emean 0.031 0.031 0.031 emin 0.017 0.017 0.017 emax 0.046 0.046 0.046 imean 4.459 4.459 4.459 imin 3.945 3.945 3.945 imax 5.012 5.011 5.012 excite_mean 0.084 0.084 0.084 fracstop 1.000 1.000 1.000 cjmean 3.099 3.099 3.099 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 180.1 180.0 180.1 kozaiamp 180.0 180.0 180.0