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: 612621
# Created Sun Dec 22 02:07:47 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 57 observations of 57
# Arc: 16.18y
# First observation: 2003/09/25
# Last observation: 2019/11/28
# Chi-squared of fit: 66.46 DOF: 108 RMS: 0.19
# Min/Max residuals: -0.57 0.57
# Exact a, adot, b, bdot, g, gdot:
1.621322E-05 3.149132E-02 -4.308873E-06 -4.617215E-03 2.899728E-02 4.164120E-03
# 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
0.076167 -5.047073 -0.117739 0.001361 -0.998969 2452907.908713
# Heliocentric elements and errors
Epoch: 2452908.5000 = 2003/09/26
Mean Anomaly: 46.17865 +/- 0.000
Argument of Peri: 117.84608 +/- 0.000
Long of Asc Node: 175.65135 +/- 0.000
Inclination: 8.35946 +/- 0.000
Eccentricity: 0.16291738 +/- 0.0000
Semi-Major Axis: 39.26948709 +/- 0.0000
Time of Perihelion: 2441378.7462 +/- 0.0
Perihelion: 32.87180501 +/- 0.0000
Aphelion: 45.66716917 +/- 0.0000
Period (y) 246.0883 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 35.35477292 +/- 0.0000
Ecliptic Y -3.00047903 +/- 0.0000
Ecliptic Z 0.04570752 +/- 0.0000
Ecliptic XDOT 0.00064882 +/- 0.0000
Ecliptic YDOT 0.00292126 +/- 0.0000
Ecliptic ZDOT -0.00043526 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 35.48181668 +/- 0.0000
Geocenter to KBO 34.48595222 +/- 0.0000
# Hcoef: 7.72
The following table shows the complete astrometric record for 612621. 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 (612621) followed by the observatory code and reference code for the source of the astrometry.
2003 09 25.40797 23 41 20.95 -01 56 07.8 612621 568 Cq9897 2003 09 25.46558 23 41 20.64 -01 56 09.9 612621 568 Cq9897 2003 09 27.36654 23 41 11.03 -01 57 17.6 22.9g 612621 568 Cq9897 2003 09 27.41890 23 41 10.75 -01 57 19.3 23.6g 612621 568 Cq9897 2003 09 27.47452 23 41 10.47 -01 57 21.6 23.4g 612621 568 Cq9897 2003 11 22.25748 23 37 49.20 -02 21 44.0 23.0g 612621 568 Cq9897 2003 11 22.35785 23 37 49.04 -02 21 45.4 22.7g 612621 568 Cq9897 2004 09 07.39052 23 49 48.60 -01 17 40.5 22.6R 612621 695 Cq9897 2004 09 07.44022 23 49 48.32 -01 17 42.3 22.6R 612621 695 Cq9897 2004 09 11.33580 23 49 28.86 -01 19 59.5 612621 695 Cq9897 2004 09 11.38128 23 49 28.63 -01 20 01.4 612621 695 Cq9897 2004 09 11.42642 23 49 28.41 -01 20 03.2 612621 695 Cq9897 2005 07 08.54462 23 59 54.76 -00 25 44.1 22.2r 612621 568 Cq9897 2005 07 08.60062 23 59 54.72 -00 25 44.5 22.2r 612621 568 Cq9897 2005 07 10.45526 23 59 53.44 -00 25 59.6 612621 675 Cq9897 2005 07 11.46556 23 59 52.62 -00 26 08.8 612621 675 Cq9897 2008 09 22.37740 00 15 57.66 +00 24 24.4 23.7R 612621 250 S~06Ae 2008 09 22.38435 00 15 57.62 +00 24 24.2 612621 250 S~06Ae 2008 09 22.39060 00 15 57.59 +00 24 24.0 612621 250 S~06Ae 2008 09 22.39754 00 15 57.56 +00 24 23.7 612621 250 S~06Ae 2013 08 05.48926 00 51 51.202 +02 59 42.58 23.6r 612621 568 C~2NIj 2013 08 05.53771 00 51 51.109 +02 59 41.76 23.5r 612621 568 C~2NIj 2013 08 08.46817 00 51 45.299 +02 58 47.16 23.3r 612621 568 C~2NIj 2013 08 08.50699 00 51 45.213 +02 58 46.36 23.2r 612621 568 C~2NIk 2013 08 31.55306 00 50 35.363 +02 49 18.41 23.7r 612621 568 C~2NIk 2013 09 01.43879 00 50 31.946 +02 48 52.53 23.4r 612621 568 C~2NIk 2013 09 01.47776 00 50 31.788 +02 48 51.38 23.3r 612621 568 C~2NIk 2013 09 05.41441 00 50 15.980 +02 46 52.77 23.6r 612621 568 C~2NIk 2013 09 05.45322 00 50 15.816 +02 46 51.64 23.0r 612621 568 C~2NIk 2013 09 29.34540 00 48 25.466 +02 33 43.53 23.3r 612621 568 C~2NIk 2013 09 29.38422 00 48 25.277 +02 33 42.19 23.5r 612621 568 C~2NIk 2013 09 29.42805 00 48 25.048 +02 33 40.65 23.3r 612621 568 C~2NIk 2013 10 02.41909 00 48 10.207 +02 31 58.47 23.3r 612621 568 C~2NIk 2013 10 04.51065 00 47 59.776 +02 30 47.07 23.3r 612621 568 C~2NIk 2013 10 09.47694 00 47 35.014 +02 27 58.91 23.6r 612621 568 C~2NIk 2013 11 27.27126 00 44 15.373 +02 06 37.33 23.8r 612621 568 C~2NIk 2013 11 27.31577 00 44 15.252 +02 06 36.67 23.6r 612621 568 C~2NIk 2013 12 05.23284 00 43 57.905 +02 04 57.44 23.6r 612621 568 C~2NIk 2014 06 25.57325 00 58 00.510 +03 28 18.11 23.7r 612621 568 C~2NIk 2014 06 26.57215 00 58 02.685 +03 28 24.95 23.4r 612621 568 C~2NIk 2014 07 23.54805 00 58 25.356 +03 27 42.41 23.5r 612621 568 C~2NIk 2014 07 27.52700 00 58 22.744 +03 26 59.10 23.5r 612621 568 C~2NIk 2014 09 27.40396 00 55 01.58 +03 00 31.2 24.5R 612621 695 C~1LJE 2014 09 27.45529 00 55 01.37 +03 00 29.7 612621 695 C~1LJE 2014 10 23.31109 00 52 54.050 +02 46 14.60 23.6r 612621 568 C~2NIk 2014 10 23.31888 00 52 54.011 +02 46 14.50 23.3r 612621 568 C~2NIk 2014 10 27.27777 00 52 35.400 +02 44 14.01 23.5r 612621 568 C~2NIk 2014 10 27.28553 00 52 35.350 +02 44 13.71 22.1r 612621 568 C~2NIk 2014 11 24.29560 00 50 46.215 +02 32 56.86 23.5r 612621 568 C~2NIk 2014 11 25.28967 00 50 43.308 +02 32 40.02 23.6r 612621 568 C~2NIk 2014 12 17.22286 00 50 01.663 +02 28 58.29 23.5r 612621 568 C~2NIk 2014 12 17.27972 00 50 01.612 +02 28 58.03 23.5r 612621 568 C~2NIk 2015 01 17.24876 00 50 24.408 +02 32 36.64 23.6r 612621 568 C~2NIk 2019 11 28.23624 01 21 39.15 +04 33 38.3 24.3g 612621 T09 C~7dBx 2019 11 28.31864 01 21 38.87 +04 33 36.9 24.4g 612621 T09 C~7dBx 2019 11 28.38203 01 21 38.66 +04 33 35.9 24.2g 612621 T09 C~7dBx 2019 11 28.45832 01 21 38.40 +04 33 34.6 24.4g 612621 T09 C~7dBx
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 0.04 0.00 0.42
2 0.0002 0.00 -0.15 0.00 0.37
3 0.0054 0.00 -0.32 0.00 0.32
4 0.0055 0.00 -0.48 0.00 0.48
5 0.0057 0.00 -0.40 0.00 0.15
6 0.1584 0.00 0.03 0.00 0.09
7 0.1587 0.00 -0.14 0.00 -0.12
8 0.9527 0.00 0.50 0.00 -0.08
9 0.9529 0.00 0.06 0.00 -0.13
10 0.9635 0.00 0.13 0.00 0.30
11 0.9637 0.00 0.18 0.00 0.01
12 0.9638 0.00 0.34 0.00 -0.18
13 1.7855 0.00 0.07 0.00 -0.05
14 1.7856 0.00 0.05 0.00 -0.04
15 1.7907 0.00 0.18 0.00 -0.33
16 1.7934 0.00 0.57 0.00 -0.57
17 4.9938 0.00 -0.25 0.00 -0.08
18 4.9938 0.00 -0.32 0.00 -0.03
19 4.9938 0.00 -0.30 0.00 -0.01
20 4.9938 0.00 -0.23 0.00 -0.07
21 9.8620 0.00 0.02 0.00 -0.08
22 9.8621 0.00 0.03 0.00 -0.04
23 9.8701 0.00 0.10 0.00 -0.12
24 9.8702 0.00 0.09 0.00 -0.17
25 9.9333 0.00 -0.07 0.00 -0.22
26 9.9357 0.00 -0.02 0.00 -0.09
27 9.9359 0.00 -0.06 0.00 -0.09
28 9.9466 0.00 -0.00 0.00 -0.13
29 9.9467 0.00 -0.01 0.00 -0.07
30 10.0121 0.00 -0.06 0.00 -0.07
31 10.0123 0.00 0.03 0.00 -0.08
32 10.0124 0.00 -0.09 0.00 -0.12
33 10.0206 0.00 -0.02 0.00 -0.04
34 10.0263 0.00 0.01 0.00 -0.08
35 10.0399 0.00 0.12 0.00 0.00
36 10.1735 0.00 0.07 0.00 -0.03
37 10.1736 0.00 0.02 0.00 -0.02
38 10.1953 0.00 0.12 0.00 0.04
39 10.7493 0.00 0.04 0.00 -0.02
40 10.7520 0.00 -0.07 0.00 -0.12
41 10.8258 0.00 -0.04 0.00 0.01
42 10.8367 0.00 -0.06 0.00 -0.09
43 11.0061 0.00 -0.18 0.00 0.19
44 11.0063 0.00 0.48 0.00 0.43
45 11.0771 0.00 0.08 0.00 -0.11
46 11.0771 0.00 0.06 0.00 0.03
47 11.0879 0.00 -0.06 0.00 -0.07
48 11.0880 0.00 -0.26 0.00 -0.14
49 11.1646 0.00 0.05 0.00 0.00
50 11.1674 0.00 -0.06 0.00 0.11
51 11.2274 0.00 0.08 0.00 0.05
52 11.2276 0.00 0.13 0.00 -0.03
53 11.3124 0.00 0.11 0.00 0.06
54 16.1748 0.00 -0.07 0.00 0.18
55 16.1750 0.00 -0.09 0.00 0.20
56 16.1752 0.00 -0.02 0.00 0.29
57 16.1754 0.00 -0.08 0.00 0.30
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.
612621 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.683 39.683 39.683 ecceobj 0.168 0.168 0.168 incobj 8.325 8.325 8.325 qmin 32.013 32.011 32.016 qmax 47.519 47.524 47.514 amean 39.457 39.457 39.457 amin 39.013 39.012 39.014 amax 39.952 39.952 39.952 emean 0.171 0.171 0.171 emin 0.152 0.152 0.152 emax 0.190 0.190 0.190 imean 8.005 8.005 8.005 imin 7.438 7.437 7.438 imax 8.709 8.710 8.709 excite_mean 0.220 0.220 0.220 fracstop 1.000 1.000 1.000 cjmean 2.997 2.997 2.997 libcent 0 180.9 181.4 180.7 libamp 0 86.4 86.6 86.3 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 174.9 174.9 174.9 kozaiamp 180.0 180.0 180.0