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: 612161 # Created Sat Apr 20 01:09:13 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 54 observations of 54 # Arc: 17.25y # First observation: 2000/05/26 # Last observation: 2017/08/27 # Chi-squared of fit: 81.82 DOF: 102 RMS: 0.22 # Min/Max residuals: -0.49 0.77 # Exact a, adot, b, bdot, g, gdot: 1.549633E-05 2.104180E-02 -1.162672E-06 -5.729194E-04 2.312209E-02 8.630128E-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 19.504111 -119.263866 -0.078351 0.339072 -0.957974 2451690.833403 # Heliocentric elements and errors Epoch: 2451690.5000 = 2000/05/26 Mean Anomaly: 148.86636 +/- 0.000 Argument of Peri: 300.89472 +/- 0.000 Long of Asc Node: 146.06901 +/- 0.000 Inclination: 19.12875 +/- 0.000 Eccentricity: 0.08794026 +/- 0.0000 Semi-Major Axis: 41.03686973 +/- 0.0000 Time of Perihelion: 2411984.7107 +/- 0.0 Perihelion: 37.42807682 +/- 0.0000 Aphelion: 44.64566263 +/- 0.0000 Period (y) 262.8873 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -20.34977941 +/- 0.0000 Ecliptic Y -36.48556210 +/- 0.0000 Ecliptic Z 14.43962269 +/- 0.0000 Ecliptic XDOT 0.00210874 +/- 0.0000 Ecliptic YDOT -0.00131550 +/- 0.0000 Ecliptic ZDOT -0.00002969 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.20192472 +/- 0.0000 Geocenter to KBO 43.24869348 +/- 0.0000 # Hcoef: 6.24
The following table shows the complete astrometric record for 612161. 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 (612161) followed by the observatory code and reference code for the source of the astrometry.
2000 05 26.33266 16 10 13.44 -01 11 25.6 22.0R 612161 695 Cb5931 2000 05 26.37359 16 10 13.26 -01 11 25.1 21.9R 612161 695 Cb5931 2000 05 26.40060 16 10 13.14 -01 11 24.9 612161 695 Cb5931 2000 05 27.29002 16 10 09.09 -01 11 14.5 21.9R 612161 695 Cb5931 2000 05 27.34103 16 10 08.85 -01 11 14.0 22.1R 612161 695 Cb5931 2000 05 27.38686 16 10 08.64 -01 11 13.6 22.0R 612161 695 Cb5931 2000 06 24.94482 16 08 06.54 -01 09 32.0 612161 950 Cb7067 2000 06 24.97776 16 08 06.41 -01 09 32.2 612161 950 Cb7067 2000 06 25.04421 16 08 06.15 -01 09 32.5 612161 950 Cb7067 2000 07 24.02932 16 06 39.75 -01 14 51.7 612161 809 Cb7682 2000 07 24.04365 16 06 39.72 -01 14 52.1 22.5R 612161 809 Cb7682 2000 07 24.05853 16 06 39.69 -01 14 52.2 22.7R 612161 809 Cb7682 2001 02 16.21883 16 18 37.58 -02 05 51.9 612161 950 Cc6647 2001 02 16.25342 16 18 37.64 -02 05 51.3 22.3R 612161 950 Cc6647 2001 02 17.22753 16 18 39.19 -02 05 29.9 612161 950 Cc6647 2001 03 21.46629 16 18 41.60 -01 51 46.2 612161 695 Cc7847 2001 03 22.47392 16 18 40.20 -01 51 18.7 612161 695 Cc7847 2001 05 22.51590 16 15 13.08 -01 28 10.0 612161 568 Cd2332 2001 05 22.53228 16 15 13.01 -01 28 09.8 612161 568 Cd2332 2002 02 11.35996 16 23 01.66 -02 23 01.8 22.1R 612161 304 Ce8775 2002 02 11.38776 16 23 01.72 -02 23 01.3 22.4R 612161 304 Ce8775 2002 06 18.25142 16 17 56.10 -01 41 04.0 612161 695 Cf8832 2002 06 18.33519 16 17 55.75 -01 41 03.9 22.3R 612161 695 Cf8832 2007 05 12.39457 16 44 03.91 -03 04 59.3 22.7R 612161 688 Cv0102 2007 05 12.44104 16 44 03.74 -03 04 58.3 612161 688 Cv0102 2012 06 09.39416 17 05 14.407 -04 15 11.43 22.6G 612161 F51 C~2rXd 2013 05 15.53546 17 11 43.887 -04 33 48.00 22.8G 612161 F51 C~2rXd 2013 06 18.43627 17 09 12.985 -04 29 34.45 22.3G 612161 F51 C~2rXd 2013 06 19.41977 17 09 08.562 -04 29 34.30 22.8G 612161 F51 C~2rXd 2014 04 28.60747 17 17 24.481 -04 53 03.62 22.7G 612161 F51 C~2rXd 2014 05 26.50795 17 15 36.596 -04 46 12.85 22.3G 612161 F51 C~2rXd 2014 06 29.40960 17 13 04.059 -04 44 33.58 22.4G 612161 F51 C~2rXd 2014 06 29.42097 17 13 04.012 -04 44 33.76 23.2G 612161 F51 C~2rXd 2014 06 29.43232 17 13 03.955 -04 44 33.94 22.8G 612161 F51 C~2rXd 2014 06 29.44368 17 13 03.917 -04 44 33.96 22.6G 612161 F51 C~2rXd 2015 04 25.55711 17 22 11.631 -05 08 27.21 22.3G 612161 F51 C~2rXd 2015 04 25.57024 17 22 11.606 -05 08 27.28 22.7G 612161 F51 C~2rXd 2015 04 25.58329 17 22 11.557 -05 08 26.82 22.5G 612161 F51 C~2rXd 2015 04 25.59642 17 22 11.526 -05 08 26.39 22.5G 612161 F51 C~2rXd 2015 05 14.54231 17 21 06.263 -05 03 07.50 22.9G 612161 F51 C~2rXd 2015 05 25.48711 17 20 20.791 -05 00 53.96 22.5G 612161 F51 C~2rXd 2015 07 09.39540 17 17 01.992 -05 00 08.02 22.7G 612161 F51 C~2rXd 2015 07 09.40713 17 17 01.943 -05 00 07.99 22.8G 612161 F51 C~2rXd 2015 07 09.41888 17 17 01.898 -05 00 08.14 22.6G 612161 F51 C~2rXd 2015 07 12.39901 17 16 50.187 -05 00 34.96 22.6G 612161 F51 C~2rXd 2015 07 12.41065 17 16 50.117 -05 00 35.32 22.2G 612161 F51 C~2rXd 2015 07 12.42224 17 16 50.076 -05 00 35.44 22.8G 612161 F51 C~2rXd 2015 07 12.43386 17 16 50.047 -05 00 35.44 23.1G 612161 F51 C~2rXd 2015 08 03.29662 17 15 38.715 -05 05 38.60 22.8G 612161 F51 C~2rXd 2017 06 23.40795 17 27 26.700 -05 27 28.00 22.9G 612161 F51 C~2rXd 2017 06 23.41884 17 27 26.649 -05 27 27.99 22.3G 612161 F51 C~2rXd 2017 06 23.42972 17 27 26.599 -05 27 28.00 22.8G 612161 F51 C~2rXd 2017 06 23.44058 17 27 26.554 -05 27 28.12 22.5G 612161 F51 C~2rXd 2017 08 27.25741 17 24 09.285 -05 42 42.88 21.5G 612161 F51 C~2rXd
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 -0.19 0.00 0.20
2 0.0001 0.00 -0.06 0.00 0.24
3 0.0002 0.00 -0.00 0.00 0.14
4 0.0026 0.00 -0.34 0.00 0.77
5 0.0028 0.00 -0.41 0.00 0.72
6 0.0029 0.00 -0.40 0.00 0.62
7 0.0811 0.00 0.12 0.00 -0.35
8 0.0812 0.00 0.09 0.00 -0.43
9 0.0813 0.00 0.07 0.00 -0.48
10 0.1607 0.00 0.22 0.00 -0.35
11 0.1607 0.00 0.21 0.00 -0.49
12 0.1608 0.00 0.23 0.00 -0.32
13 0.7280 0.00 0.05 0.00 0.05
14 0.7281 0.00 0.13 0.00 -0.10
15 0.7307 0.00 0.08 0.00 0.00
16 0.8190 0.00 -0.06 0.00 0.38
17 0.8217 0.00 0.24 0.00 0.07
18 0.9889 0.00 0.12 0.00 -0.17
19 0.9889 0.00 0.20 0.00 -0.18
20 1.7140 0.00 0.11 0.00 0.15
21 1.7140 0.00 0.12 0.00 0.10
22 2.0614 0.00 -0.12 0.00 -0.35
23 2.0616 0.00 -0.01 0.00 -0.26
24 6.9598 0.00 -0.28 0.00 -0.09
25 6.9599 0.00 0.13 0.00 0.14
26 12.0385 0.00 0.02 0.00 -0.33
27 12.9698 0.00 0.13 0.00 -0.10
28 13.0626 0.00 -0.08 0.00 -0.17
29 13.0653 0.00 -0.06 0.00 -0.17
30 13.9227 0.00 0.09 0.00 0.02
31 13.9991 0.00 0.30 0.00 0.26
32 14.0919 0.00 0.04 0.00 0.22
33 14.0920 0.00 0.08 0.00 0.09
34 14.0920 0.00 -0.03 0.00 -0.04
35 14.0920 0.00 0.14 0.00 -0.01
36 14.9137 0.00 -0.12 0.00 0.05
37 14.9137 0.00 0.08 0.00 -0.27
38 14.9138 0.00 -0.08 0.00 -0.06
39 14.9138 0.00 0.04 0.00 0.12
40 14.9657 0.00 0.05 0.00 -0.10
41 14.9956 0.00 0.04 0.00 0.22
42 15.1186 0.00 -0.11 0.00 -0.06
43 15.1186 0.00 -0.13 0.00 0.07
44 15.1186 0.00 -0.08 0.00 0.02
45 15.1268 0.00 0.02 0.00 0.14
46 15.1268 0.00 -0.34 0.00 -0.10
47 15.1269 0.00 -0.27 0.00 -0.11
48 15.1269 0.00 -0.02 0.00 -0.00
49 15.1868 0.00 -0.08 0.00 0.10
50 17.0762 0.00 0.02 0.00 0.00
51 17.0762 0.00 0.01 0.00 0.04
52 17.0762 0.00 0.01 0.00 0.05
53 17.0763 0.00 0.08 0.00 -0.05
54 17.2537 0.00 0.30 0.00 0.16
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.
612161 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.049 41.049 41.049 ecceobj 0.087 0.087 0.087 incobj 19.128 19.128 19.128 qmin 36.891 36.879 36.939 qmax 45.994 46.001 45.957 amean 41.323 41.323 41.323 amin 41.000 41.005 40.999 amax 41.682 41.681 41.680 emean 0.087 0.087 0.087 emin 0.072 0.072 0.072 emax 0.104 0.104 0.103 imean 18.214 18.214 18.214 imin 17.554 17.554 17.548 imax 18.948 18.947 18.948 excite_mean 0.324 0.324 0.324 fracstop 1.000 1.000 1.000 cjmean 2.946 2.946 2.946 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 178.5 178.6 178.7 kozaiamp 179.8 179.9 180.0