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: 612146
# Created Sun Nov 24 02:07:38 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 29 observations of 29
# Arc: 22.07y
# First observation: 2000/02/05
# Last observation: 2022/03/02
# Chi-squared of fit: 120.72 DOF: 52 RMS: 0.36
# Min/Max residuals: -1.15 1.20
# Exact a, adot, b, bdot, g, gdot:
1.449002E-05 2.477771E-02 -2.490875E-07 2.044584E-04 2.467392E-02 -1.930235E-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
0.290065 107.305198 -0.474924 0.004180 -0.867225 2451579.618303
# Heliocentric elements and errors
Epoch: 2451580.5000 = 2000/02/06
Mean Anomaly: 5.88473 +/- 0.000
Argument of Peri: 24.47754 +/- 0.000
Long of Asc Node: 76.82640 +/- 0.000
Inclination: 0.54931 +/- 0.000
Eccentricity: 0.06052543 +/- 0.0000
Semi-Major Axis: 44.04955599 +/- 0.0000
Time of Perihelion: 2449834.9412 +/- 0.0
Perihelion: 41.38343766 +/- 0.0000
Aphelion: 46.71567432 +/- 0.0000
Period (y) 292.3617 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -12.76055931 +/- 0.0000
Ecliptic Y 39.38312972 +/- 0.0000
Ecliptic Z 0.20517615 +/- 0.0000
Ecliptic XDOT -0.00262418 +/- 0.0000
Ecliptic YDOT -0.00083125 +/- 0.0000
Ecliptic ZDOT 0.00002268 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.39933002 +/- 0.0000
Geocenter to KBO 40.52866317 +/- 0.0000
# Hcoef: 7.15
The following table shows the complete astrometric record for 612146. 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 (612146) followed by the observatory code and reference code for the source of the astrometry.
2000 02 05.11756 07 15 11.28 +22 36 25.9 23.0R 612146 695 Cb1115 2000 02 05.22983 07 15 10.73 +22 36 27.0 612146 695 Cb1115 2000 02 26.12243 07 13 48.64 +22 38 49.3 23.2R 612146 695 Cb1115 2000 02 26.21066 07 13 48.42 +22 38 49.6 612146 695 Cb1115 2000 12 21.42492 07 25 10.73 +22 18 00.8 612146 568 Cc3758 2000 12 21.50641 07 25 10.16 +22 18 01.5 612146 568 Cc3758 2000 12 22.61660 07 25 04.71 +22 18 13.5 23.2R 612146 568 Cc3758 2001 01 25.18505 07 22 07.95 +22 24 08.8 23.2R 612146 695 Cc6636 2001 01 25.23628 07 22 07.66 +22 24 09.6 612146 695 Cc6636 2001 12 14.26198 07 31 51.37 +22 04 37.0 21.6 612146 304 Ce8743 2001 12 14.29675 07 31 51.21 +22 04 37.3 612146 304 Ce8743 2002 02 03.45725 07 27 29.48 +22 14 01.7 22.7R 612146 568 Cf1711 2002 02 03.56823 07 27 28.95 +22 14 02.5 612146 568 Cf1711 2002 02 05.46633 07 27 19.91 +22 14 20.5 612146 568 Cf1711 2002 02 14.15133 07 26 41.25 +22 15 40.6 22.9R 612146 304 f1711 2002 02 14.17302 07 26 41.15 +22 15 40.7 612146 304 f1711 2013 03 12.13281 08 30 19.32 +19 23 55.1 23.1R 612146 695 C~0uco 2013 03 12.19517 08 30 19.13 +19 23 56.0 612146 695 C~0uco 2013 03 13.13111 08 30 16.12 +19 24 06.5 612146 695 C~0uco 2014 12 29.288299 08 47 29.74 +18 20 55.1 612146 W84 C~3i9U 2014 12 29.291545 08 47 29.74 +18 20 55.1 612146 W84 C~3i9U 2021 01 11.422630 09 20 18.043 +16 03 34.11 23.5G 612146 G37 C~4Tvi 2021 01 11.463190 09 20 17.870 +16 03 34.54 612146 G37 C~4Tvi 2021 01 11.503640 09 20 17.708 +16 03 35.51 612146 G37 C~4Tvi 2021 02 15.243170 09 17 32.033 +16 16 21.77 23.7G 612146 G37 C~4Yot 2021 02 15.295840 09 17 31.738 +16 16 23.67 612146 G37 C~4Yot 2022 03 02.143010 09 21 55.650 +15 56 29.99 24.5G 612146 G37 C~5Rja 2022 03 02.182760 09 21 55.422 +15 56 31.12 612146 G37 C~5Rja 2022 03 02.223380 09 21 55.258 +15 56 32.37 612146 G37 C~5Rja
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 0.32 0.00 0.04
2 0.0003 0.00 -0.02 0.00 0.20
3 0.0575 0.00 -0.30 0.00 0.35
4 0.0577 0.00 0.65 0.00 0.18
5 0.8770 0.00 1.20 0.00 -0.09
6 0.8772 0.00 -1.15 0.00 -0.24
7 0.8802 0.00 0.63 0.00 0.24
8 0.9721 0.00 -0.12 0.00 -0.09
9 0.9723 0.00 -0.48 0.00 0.19
10 1.8567 0.00 -0.08 0.00 0.20
11 1.8568 0.00 -0.06 0.00 0.14
12 1.9968 0.00 -0.14 0.00 -0.13
13 1.9971 0.00 -0.02 0.00 -0.39
14 2.0023 0.00 -0.65 0.00 -0.96
15 2.0261 0.00 -0.01 0.00 0.05
16 2.0262 0.00 -0.12 0.00 -0.03
17 13.0979 0.00 -0.07 0.00 -0.09
18 13.0981 0.00 0.20 0.00 0.11
19 13.1007 0.00 0.11 0.00 0.34
20 14.8971 0.00 -0.03 0.00 0.20
21 14.8971 0.00 0.18 0.00 0.15
22 20.9344 0.00 -0.13 0.00 0.20
23 20.9346 0.00 -0.06 0.00 -0.19
24 20.9347 0.00 0.17 0.00 -0.04
25 21.0298 0.00 0.34 0.00 -0.48
26 21.0299 0.00 -0.19 0.00 0.25
27 22.0699 0.00 0.32 0.00 -0.39
28 22.0700 0.00 -0.42 0.00 -0.07
29 22.0701 0.00 -0.13 0.00 0.34
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.
612146 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.036 44.036 44.036 ecceobj 0.060 0.060 0.060 incobj 0.549 0.549 0.549 qmin 40.237 40.239 40.236 qmax 47.829 47.822 47.832 amean 43.929 43.929 43.929 amin 43.585 43.586 43.585 amax 44.288 44.287 44.288 emean 0.064 0.064 0.064 emin 0.047 0.047 0.047 emax 0.080 0.080 0.080 imean 1.227 1.227 1.227 imin 0.349 0.349 0.349 imax 1.904 1.904 1.904 excite_mean 0.068 0.068 0.068 fracstop 1.000 1.000 1.000 cjmean 3.095 3.095 3.095 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 184.3 184.3 184.3 kozaiamp 180.0 180.0 180.0