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: 612549
# Created Wed Jul 17 01:07:44 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 30 observations of 30
# Arc: 19.11y
# First observation: 2003/04/26
# Last observation: 2022/06/04
# Chi-squared of fit: 45.44 DOF: 54 RMS: 0.22
# Min/Max residuals: -0.43 0.52
# Exact a, adot, b, bdot, g, gdot:
1.601931E-05 2.296484E-02 -5.427792E-07 -8.025112E-04 2.380104E-02 -8.260238E-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
0.631546 -161.194500 -0.296631 0.010603 -0.962299 2452755.856463
# Heliocentric elements and errors
Epoch: 2452756.5000 = 2003/04/27
Mean Anomaly: 305.86142 +/- 0.000
Argument of Peri: 220.01751 +/- 0.000
Long of Asc Node: 36.33273 +/- 0.000
Inclination: 2.09438 +/- 0.000
Eccentricity: 0.03182501 +/- 0.0000
Semi-Major Axis: 43.76488218 +/- 0.0000
Time of Perihelion: 2468659.9527 +/- 0.0
Perihelion: 42.37206434 +/- 0.0000
Aphelion: 45.15770002 +/- 0.0000
Period (y) 289.5322 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -40.58700449 +/- 0.0000
Ecliptic Y -14.13037382 +/- 0.0000
Ecliptic Z 0.46310298 +/- 0.0000
Ecliptic XDOT 0.00093437 +/- 0.0000
Ecliptic YDOT -0.00247527 +/- 0.0000
Ecliptic ZDOT -0.00009317 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.97892866 +/- 0.0000
Geocenter to KBO 42.01503887 +/- 0.0000
# Hcoef: 6.34
The following table shows the complete astrometric record for 612549. 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 (612549) followed by the observatory code and reference code for the source of the astrometry.
2003 04 26.35572 13 10 22.10 -06 46 58.0 22.1R 612549 568 Cq9883 2003 04 26.40073 13 10 21.90 -06 46 57.0 22.0R 612549 568 Cq9883 2003 04 26.44299 13 10 21.72 -06 46 55.9 22.1R 612549 568 Cq9883 2003 04 27.40999 13 10 17.64 -06 46 32.2 612549 568 Cq9883 2003 05 30.30762 13 08 23.01 -06 35 24.0 22.6R 612549 568 Cq9883 2003 05 30.31870 13 08 22.98 -06 35 24.1 612549 568 Cq9883 2003 05 30.36094 13 08 22.86 -06 35 23.4 22.4R 612549 568 Cq9883 2003 05 30.37178 13 08 22.83 -06 35 23.4 612549 568 Cq9883 2004 03 29.53822 13 17 12.45 -07 31 11.4 22.9R 612549 568 Cq9883 2004 03 29.56125 13 17 12.35 -07 31 10.8 22.9R 612549 568 Cq9883 2004 03 29.58969 13 17 12.21 -07 31 10.2 23.1R 612549 568 Cq9883 2004 04 16.34302 13 15 53.58 -07 23 24.5 612549 675 Cq9883 2004 04 16.42962 13 15 53.20 -07 23 22.2 612549 675 Cq9883 2005 07 11.06434 13 17 13.71 -07 35 56.9 22.3R 612549 809 Cq9883 2005 07 12.00717 13 17 14.31 -07 36 01.6 22.8R 612549 809 Cq9883 2008 04 04.35296 13 36 25.15 -09 36 42.9 22.3R 612549 688 Cy5707 2008 04 04.44108 13 36 24.74 -09 36 40.3 612549 688 Cy5707 2013 03 13.40197 14 02 47.52 -12 18 33.3 22.3R 612549 G37 C~0qSU 2013 03 13.42604 14 02 47.44 -12 18 32.9 612549 G37 C~0qSU 2015 04 25.14742 14 10 00.53 -13 03 06.6 22.6V 612549 W84 C~2fbn 2015 04 25.21624 14 10 00.21 -13 03 05.0 612549 W84 C~2fbn 2015 04 26.17745 14 09 55.77 -13 02 42.4 612549 W84 C~2fbn 2015 04 26.24659 14 09 55.45 -13 02 40.8 612549 W84 C~2fbn 2015 05 22.17356 14 08 01.01 -12 52 57.0 22.6R 612549 695 C~1hTZ 2015 05 22.21005 14 08 00.86 -12 52 56.1 612549 695 C~1hTZ 2015 05 22.26106 14 08 00.63 -12 52 55.2 612549 695 C~1hTZ 2022 06 04.308650 14 43 23.822 -16 08 10.09 22.4w 612549 F52 C~71v6 2022 06 04.320112 14 43 23.762 -16 08 09.79 22.3w 612549 F52 C~71v6 2022 06 04.331569 14 43 23.719 -16 08 09.39 22.3w 612549 F52 C~71v6 2022 06 04.343138 14 43 23.694 -16 08 09.41 22.3w 612549 F52 C~71v6
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 -0.15 0.00 0.06
2 0.0001 0.00 -0.24 0.00 -0.06
3 0.0002 0.00 -0.21 0.00 -0.02
4 0.0029 0.00 -0.38 0.00 -0.43
5 0.0930 0.00 0.13 0.00 0.15
6 0.0930 0.00 0.12 0.00 -0.11
7 0.0931 0.00 -0.02 0.00 -0.02
8 0.0931 0.00 -0.04 0.00 -0.18
9 0.9259 0.00 0.31 0.00 0.52
10 0.9260 0.00 0.33 0.00 0.52
11 0.9260 0.00 0.12 0.00 0.38
12 0.9746 0.00 0.19 0.00 -0.42
13 0.9749 0.00 0.32 0.00 -0.39
14 2.2086 0.00 -0.06 0.00 -0.27
15 2.2112 0.00 -0.27 0.00 -0.08
16 4.9418 0.00 -0.15 0.00 0.08
17 4.9421 0.00 -0.38 0.00 0.46
18 9.8810 0.00 0.15 0.00 0.05
19 9.8811 0.00 0.16 0.00 0.04
20 11.9967 0.00 -0.07 0.00 -0.04
21 11.9969 0.00 -0.02 0.00 -0.06
22 11.9995 0.00 -0.09 0.00 -0.07
23 11.9997 0.00 -0.02 0.00 -0.10
24 12.0707 0.00 0.19 0.00 -0.04
25 12.0708 0.00 0.19 0.00 0.11
26 12.0709 0.00 -0.12 0.00 -0.04
27 19.1073 0.00 0.02 0.00 -0.12
28 19.1074 0.00 -0.18 0.00 -0.02
29 19.1074 0.00 -0.13 0.00 0.17
30 19.1074 0.00 0.20 0.00 -0.05
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.
612549 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.374 43.374 43.374 ecceobj 0.030 0.030 0.030 incobj 2.103 2.103 2.103 qmin 41.715 41.705 41.730 qmax 45.810 45.811 45.811 amean 43.682 43.682 43.682 amin 43.348 43.351 43.348 amax 44.031 44.027 44.029 emean 0.024 0.024 0.024 emin 0.006 0.006 0.007 emax 0.041 0.041 0.041 imean 1.726 1.726 1.726 imin 0.951 0.951 0.951 imax 2.327 2.327 2.328 excite_mean 0.039 0.039 0.039 fracstop 1.000 1.000 1.000 cjmean 3.096 3.096 3.096 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 185.0 184.9 185.1 kozaiamp 180.0 180.0 180.0