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: 612082 # Created Wed Dec 25 02:07:36 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 39 observations of 39 # Arc: 23.04y # First observation: 1998/11/18 # Last observation: 2021/12/01 # Chi-squared of fit: 40.98 DOF: 72 RMS: 0.18 # Min/Max residuals: -0.46 0.40 # Exact a, adot, b, bdot, g, gdot: 1.433137E-05 2.408611E-02 -8.078255E-08 7.180166E-04 2.442884E-02 -4.233811E-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 -0.890176 76.000717 0.331434 -0.014628 -0.926878 2451135.938351 # Heliocentric elements and errors Epoch: 2451136.5000 = 1998/11/19 Mean Anomaly: 328.04937 +/- 0.000 Argument of Peri: 7.44581 +/- 0.000 Long of Asc Node: 102.62100 +/- 0.000 Inclination: 1.91114 +/- 0.000 Eccentricity: 0.04088455 +/- 0.0000 Semi-Major Axis: 43.34714736 +/- 0.0000 Time of Perihelion: 2460388.0842 +/- 0.0 Perihelion: 41.57491878 +/- 0.0000 Aphelion: 45.11937594 +/- 0.0000 Period (y) 285.3967 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 10.45508747 +/- 0.0000 Ecliptic Y 40.53332611 +/- 0.0000 Ecliptic Z -0.63596177 +/- 0.0000 Ecliptic XDOT -0.00263103 +/- 0.0000 Ecliptic YDOT 0.00061730 +/- 0.0000 Ecliptic ZDOT 0.00008117 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.86484233 +/- 0.0000 Geocenter to KBO 40.93525746 +/- 0.0000 # Hcoef: 6.77
The following table shows the complete astrometric record for 612082. 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 (612082) followed by the observatory code and reference code for the source of the astrometry.
1998 11 18.43762 04 59 35.44 +21 49 05.4 22.6R 612082 695 Ca3208 1998 11 18.50897 04 59 35.07 +21 49 04.7 612082 695 Ca3208 1998 11 19.49641 04 59 30.18 +21 48 57.5 22.5R 612082 695 a3608 1998 11 19.53615 04 59 29.97 +21 48 57.4 612082 695 a3608 1998 11 26.37301 04 58 55.18 +21 48 06.5 22.7R 612082 695 Ca3208 1998 11 27.37204 04 58 50.01 +21 47 59.2 612082 695 Ca3208 1998 12 19.01745 04 56 55.74 +21 45 18.4 22.7R 612082 950 a3608 1998 12 19.10795 04 56 55.29 +21 45 17.3 612082 950 a3608 1998 12 19.15789 04 56 55.04 +21 45 16.8 612082 950 a3608 1999 01 22.30591 04 54 23.97 +21 41 59.6 22.9R 612082 568 Ca5544 1999 01 22.35924 04 54 23.79 +21 41 59.7 612082 568 Ca5545 1999 01 23.34528 04 54 20.55 +21 41 55.8 612082 568 Ca5545 2000 11 23.44734 05 10 59.69 +22 09 06.5 22.8R 612082 695 Cc3588 2000 11 23.49502 05 10 59.45 +22 09 06.2 612082 695 Cc3588 2000 11 27.35230 05 10 39.68 +22 08 43.3 23.1R 612082 695 Cc3588 2000 11 27.42891 05 10 39.28 +22 08 42.9 23.1R 612082 695 Cc3588 2000 11 28.39859 05 10 34.24 +22 08 37.0 22.8R 612082 695 Cc3588 2000 11 29.37068 05 10 29.17 +22 08 31.1 23.1R 612082 695 Cc3588 2000 11 29.43688 05 10 28.81 +22 08 30.8 23.1R 612082 695 Cc3588 2001 01 25.16590 05 05 58.55 +22 03 39.7 22.7R 612082 695 Cc6418 2001 01 25.24633 05 05 58.30 +22 03 39.6 612082 695 Cc6418 2002 01 30.08376 05 11 38.65 +22 13 15.2 21.2 612082 304 Cf1458 2002 01 30.10590 05 11 38.57 +22 13 15.2 612082 304 Cf1458 2002 02 14.02889 05 11 03.99 +22 12 55.1 21.3R 612082 304 f1458 2002 02 14.08993 05 11 03.89 +22 12 55.0 612082 304 f1458 2008 12 22.36861 05 56 31.91 +22 59 01.2 21.8r 612082 695 C~0hkJ 2008 12 22.45199 05 56 31.45 +22 59 01.1 21.8r 612082 695 C~0hkJ 2011 12 24.39708 06 14 38.60 +23 04 50.5 22.7R 612082 688 C~0bcS 2011 12 24.44397 06 14 38.36 +23 04 50.6 612082 688 C~0bcS 2015 01 20.28328 06 30 34.184 +23 04 48.57 23.1G 612082 F51 C~2r77 2015 01 20.29402 06 30 34.119 +23 04 48.55 23.2G 612082 F51 C~2r77 2015 01 20.30494 06 30 34.067 +23 04 48.42 23.1G 612082 F51 C~2r77 2015 01 20.31574 06 30 34.009 +23 04 48.68 23.2G 612082 F51 C~2r77 2015 12 14.41817 06 39 56.714 +22 59 25.13 23.3G 612082 F51 C~2r77 2016 01 04.49368 06 38 04.038 +23 01 19.13 22.8G 612082 F51 C~2r77 2016 01 07.49955 06 37 47.821 +23 01 35.59 23.5G 612082 F51 C~2r77 2021 12 01.428150 07 17 14.315 +22 24 03.08 22.9G 612082 G37 C~5J0s 2021 12 01.467590 07 17 14.144 +22 24 03.25 612082 G37 C~5J0s 2021 12 01.507420 07 17 13.972 +22 24 03.78 612082 G37 C~5J0s
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 0.27 0.00 0.14
2 0.0002 0.00 0.07 0.00 -0.03
3 0.0029 0.00 0.14 0.00 -0.09
4 0.0030 0.00 -0.02 0.00 0.12
5 0.0217 0.00 -0.20 0.00 -0.40
6 0.0245 0.00 0.08 0.00 -0.23
7 0.0837 0.00 -0.46 0.00 0.21
8 0.0840 0.00 -0.05 0.00 -0.23
9 0.0841 0.00 0.13 0.00 -0.35
10 0.1776 0.00 0.07 0.00 -0.38
11 0.1777 0.00 0.10 0.00 -0.07
12 0.1804 0.00 -0.04 0.00 -0.25
13 2.0151 0.00 0.06 0.00 0.04
14 2.0152 0.00 0.12 0.00 0.03
15 2.0258 0.00 0.01 0.00 0.06
16 2.0260 0.00 0.05 0.00 0.13
17 2.0286 0.00 -0.01 0.00 0.05
18 2.0313 0.00 0.01 0.00 0.00
19 2.0315 0.00 -0.13 0.00 0.11
20 2.1868 0.00 -0.23 0.00 0.24
21 2.1870 0.00 0.07 0.00 0.38
22 3.1996 0.00 0.13 0.00 0.25
23 3.1996 0.00 -0.04 0.00 0.30
24 3.2405 0.00 -0.05 0.00 -0.01
25 3.2407 0.00 -0.02 0.00 -0.08
26 10.0943 0.00 -0.22 0.00 0.08
27 10.0945 0.00 -0.25 0.00 0.00
28 13.0978 0.00 -0.19 0.00 0.40
29 13.0979 0.00 0.08 0.00 0.40
30 16.1721 0.00 0.09 0.00 -0.04
31 16.1721 0.00 -0.08 0.00 -0.11
32 16.1721 0.00 -0.04 0.00 -0.28
33 16.1722 0.00 -0.09 0.00 -0.07
34 17.0704 0.00 0.20 0.00 0.01
35 17.1281 0.00 0.30 0.00 -0.29
36 17.1364 0.00 0.14 0.00 0.03
37 23.0363 0.00 0.10 0.00 -0.03
38 23.0364 0.00 -0.06 0.00 -0.17
39 23.0365 0.00 -0.22 0.00 0.06
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.
612082 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.495 43.495 43.495 ecceobj 0.044 0.044 0.044 incobj 1.910 1.910 1.910 qmin 40.156 40.163 40.151 qmax 46.532 46.533 46.531 amean 43.251 43.250 43.251 amin 42.915 42.917 42.916 amax 43.606 43.598 43.611 emean 0.049 0.049 0.049 emin 0.030 0.030 0.030 emax 0.068 0.068 0.068 imean 1.025 1.025 1.025 imin 0.127 0.127 0.127 imax 1.606 1.606 1.605 excite_mean 0.053 0.053 0.053 fracstop 1.000 1.000 1.000 cjmean 3.089 3.089 3.089 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 179.0 179.0 179.1 kozaiamp 179.9 180.0 180.0