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: 612576 # Created Wed Dec 25 02:07:40 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 33 observations of 33 # Arc: 18.20y # First observation: 2003/08/23 # Last observation: 2021/11/05 # Chi-squared of fit: 116.31 DOF: 60 RMS: 0.33 # Min/Max residuals: -1.99 0.73 # Exact a, adot, b, bdot, g, gdot: 1.615446E-05 2.748946E-02 -2.074635E-06 -3.264107E-03 2.601984E-02 7.797633E-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 -2.218816 -21.103098 0.166135 -0.038746 -1.001216 2452874.655233 # Heliocentric elements and errors Epoch: 2452874.5000 = 2003/08/23 Mean Anomaly: 8.97954 +/- 0.000 Argument of Peri: 186.00690 +/- 0.000 Long of Asc Node: 141.09042 +/- 0.000 Inclination: 7.13121 +/- 0.000 Eccentricity: 0.12786067 +/- 0.0000 Semi-Major Axis: 45.10417766 +/- 0.0000 Time of Perihelion: 2450114.7161 +/- 0.0 Perihelion: 39.33712743 +/- 0.0000 Aphelion: 50.87122788 +/- 0.0000 Period (y) 302.9238 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 36.70019979 +/- 0.0000 Ecliptic Y -14.33857219 +/- 0.0000 Ecliptic Z -1.48802647 +/- 0.0000 Ecliptic XDOT 0.00110025 +/- 0.0000 Ecliptic YDOT 0.00266806 +/- 0.0000 Ecliptic ZDOT -0.00034620 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.42984115 +/- 0.0000 Geocenter to KBO 38.43222659 +/- 0.0000 # Hcoef: 7.00
The following table shows the complete astrometric record for 612576. 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 (612576) followed by the observatory code and reference code for the source of the astrometry.
2003 08 23.15449 22 45 23.32 -10 17 24.4 21.7R 612576 807 Ci4137 2003 08 24.24550 22 45 18.23 -10 17 57.7 612576 807 Ci4137 2003 08 24.34971 22 45 17.73 -10 18 01.0 612576 807 Ci4137 2003 09 29.20936 22 42 34.03 -10 35 08.9 22.2R 612576 688 Ci6257 2003 09 29.33410 22 42 33.53 -10 35 11.9 612576 688 Ci6257 2003 10 24.09833 22 41 09.92 -10 43 17.6 22.7R 612576 304 Ci9429 2003 10 24.12483 22 41 09.86 -10 43 17.9 612576 304 Ci9429 2004 07 16.33525 22 53 57.05 -09 35 11.3 21.4R 612576 807 C~077P 2004 07 16.38676 22 53 56.91 -09 35 12.5 612576 807 C~077P 2007 10 11.14934 23 06 22.17 -08 57 14.5 23.2R 612576 688 C~077P 2007 10 11.22698 23 06 21.72 -08 57 16.2 612576 688 C~077P 2009 09 18.23582 23 20 09.63 -07 53 32.2 22.9R 612576 688 C~09at 2009 09 18.28500 23 20 09.40 -07 53 33.7 612576 688 C~09at 2009 10 16.159012 23 18 11.22 -08 05 53.7 612576 645 C~1PqY 2009 10 16.159842 23 18 11.22 -08 05 53.7 612576 645 C~1PqY 2009 10 16.162329 23 18 11.21 -08 05 53.8 612576 645 C~1PqY 2016 09 09.15494 00 02 37.453 -04 33 57.01 22.9z 612576 W84 C~4yD1 2016 09 09.15632 00 02 37.465 -04 33 57.00 22.4i 612576 W84 C~4yD1 2016 09 22.09014 00 01 38.819 -04 40 47.59 23.2r 612576 W84 C~4yD1 2016 09 22.09152 00 01 38.813 -04 40 47.73 23.6g 612576 W84 C~4yD1 2016 09 30.17178 00 01 01.748 -04 44 55.49 22.9r 612576 W84 C~4yD1 2016 09 30.17317 00 01 01.743 -04 44 55.55 22.9i 612576 W84 C~4yD1 2016 09 30.17454 00 01 01.727 -04 44 55.66 23.7g 612576 W84 C~4yD1 2017 09 23.33341 00 07 25.21 -04 13 00.3 22.6R 612576 G37 C~2LPu 2017 09 23.42517 00 07 24.82 -04 13 03.7 612576 G37 C~2LPu 2017 09 27.28309 00 07 07.078 -04 15 03.23 23.4r 612576 W84 C~4yD1 2017 09 27.28445 00 07 07.061 -04 15 03.50 22.7i 612576 W84 C~4yD1 2017 10 17.22832 00 05 38.693 -04 24 29.00 23.1i 612576 W84 C~4yD1 2018 10 18.17681 00 11 24.842 -03 56 28.94 23.2z 612576 W84 C~4yD1 2018 10 18.17817 00 11 24.840 -03 56 28.98 22.8i 612576 W84 C~4yD1 2018 11 07.12755 00 10 10.556 -04 03 31.20 23.5r 612576 W84 C~4yD1 2021 11 05.126690 00 27 32.541 -02 38 05.34 22.0G 612576 G37 C~5B70 2021 11 05.223890 00 27 32.201 -02 38 07.20 612576 G37 C~5B70
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 0.10 0.00 0.06
2 0.0030 0.00 -0.16 0.00 -0.04
3 0.0033 0.00 -0.27 0.00 -0.18
4 0.1015 0.00 0.07 0.00 -0.01
5 0.1018 0.00 0.39 0.00 0.07
6 0.1696 0.00 0.20 0.00 -0.05
7 0.1697 0.00 0.33 0.00 0.01
8 0.8985 0.00 0.04 0.00 -0.05
9 0.8987 0.00 0.15 0.00 -0.12
10 4.1341 0.00 0.25 0.00 0.48
11 4.1344 0.00 -1.99 0.00 0.54
12 6.0728 0.00 -0.09 0.00 0.24
13 6.0729 0.00 -0.08 0.00 0.23
14 6.1492 0.00 0.19 0.00 -0.37
15 6.1492 0.00 0.24 0.00 -0.35
16 6.1492 0.00 0.23 0.00 -0.40
17 13.0486 0.00 -0.05 0.00 -0.12
18 13.0486 0.00 0.22 0.00 -0.07
19 13.0840 0.00 0.12 0.00 -0.04
20 13.0840 0.00 0.13 0.00 -0.14
21 13.1061 0.00 0.05 0.00 -0.01
22 13.1061 0.00 0.07 0.00 -0.03
23 13.1061 0.00 -0.07 0.00 -0.10
24 14.0867 0.00 0.03 0.00 0.73
25 14.0870 0.00 0.59 0.00 0.20
26 14.0975 0.00 0.09 0.00 0.04
27 14.0975 0.00 -0.07 0.00 -0.19
28 14.1522 0.00 0.14 0.00 -0.23
29 15.1541 0.00 -0.09 0.00 -0.06
30 15.1541 0.00 -0.04 0.00 -0.07
31 15.2087 0.00 -0.02 0.00 0.03
32 18.2039 0.00 -0.38 0.00 0.03
33 18.2042 0.00 -0.21 0.00 0.01
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.
612576 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.589 45.589 45.589 ecceobj 0.137 0.137 0.137 incobj 7.109 7.109 7.109 qmin 38.603 38.600 38.605 qmax 52.417 52.418 52.422 amean 45.379 45.379 45.379 amin 45.009 45.006 45.014 amax 45.771 45.770 45.769 emean 0.133 0.133 0.133 emin 0.118 0.118 0.118 emax 0.146 0.146 0.146 imean 6.112 6.112 6.112 imin 5.526 5.526 5.526 imax 6.711 6.711 6.711 excite_mean 0.170 0.170 0.170 fracstop 1.000 1.000 1.000 cjmean 3.083 3.083 3.083 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 183.5 183.5 183.5 kozaiamp 180.0 180.0 180.0