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: 613620 # Created Sun Dec 22 02:07:49 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 72 observations of 72 # Arc: 21.16y # First observation: 1999/10/13 # Last observation: 2020/12/09 # Chi-squared of fit: 104.15 DOF: 138 RMS: 0.21 # Min/Max residuals: -0.57 0.79 # Exact a, adot, b, bdot, g, gdot: 2.015021E-05 4.183009E-02 -1.499085E-06 -8.319364E-03 3.388132E-02 -1.597847E-03 # 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 10.028266 15.587172 -0.068691 0.171766 -0.972606 2451464.818331 # Heliocentric elements and errors Epoch: 2451464.5000 = 1999/10/13 Mean Anomaly: 353.66895 +/- 0.000 Argument of Peri: 149.23471 +/- 0.000 Long of Asc Node: 236.00530 +/- 0.000 Inclination: 14.81142 +/- 0.000 Eccentricity: 0.23448593 +/- 0.0000 Semi-Major Axis: 39.71064609 +/- 0.0000 Time of Perihelion: 2453071.9294 +/- 0.0 Perihelion: 30.39905834 +/- 0.0000 Aphelion: 49.02223384 +/- 0.0000 Period (y) 250.2469 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.93523097 +/- 0.0000 Ecliptic Y 8.14388165 +/- 0.0000 Ecliptic Z 5.13949347 +/- 0.0000 Ecliptic XDOT -0.00092252 +/- 0.0000 Ecliptic YDOT 0.00326124 +/- 0.0000 Ecliptic ZDOT -0.00068440 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 30.49567235 +/- 0.0000 Geocenter to KBO 29.51484879 +/- 0.0000 # Hcoef: 7.81
The following table shows the complete astrometric record for 613620. 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 (613620) followed by the observatory code and reference code for the source of the astrometry.
1999 10 13.317588 00 41 27.79 +15 22 04.5 22.8V 613620 645 C~2Ku8 1999 10 14.316572 00 41 21.86 +15 21 20.3 22.7V 613620 645 C~2Ku8 1999 10 14.317401 00 41 21.87 +15 21 20.2 22.7V 613620 645 C~2Ku8 1999 10 14.319889 00 41 21.86 +15 21 20.4 23.9V 613620 645 C~2Ku8 2000 11 30.243262 00 47 34.36 +15 16 28.3 22.6V 613620 645 C~2Ku8 2000 11 30.244091 00 47 34.37 +15 16 28.5 23.7V 613620 645 C~2Ku8 2000 11 30.246579 00 47 34.37 +15 16 28.3 24.4V 613620 645 C~2Ku8 2006 10 22.95815 01 51 16.72 +18 09 50.2 21.3R 613620 950 Cs4401 2006 10 23.00898 01 51 16.40 +18 09 48.3 21.4R 613620 950 Cs4401 2006 10 23.05708 01 51 16.07 +18 09 46.2 21.4R 613620 950 Cs4401 2006 10 23.09167 01 51 15.88 +18 09 44.9 21.1R 613620 950 Cs4401 2006 10 23.12578 01 51 15.66 +18 09 43.4 20.9R 613620 950 Cs4401 2006 10 23.90551 01 51 10.80 +18 09 12.9 21.0R 613620 950 Cs4401 2006 10 23.94620 01 51 10.54 +18 09 11.0 21.6R 613620 950 Cs4401 2006 10 23.99593 01 51 10.21 +18 09 09.1 21.3R 613620 950 Cs4401 2006 10 24.07534 01 51 09.71 +18 09 05.9 21.3R 613620 950 Cs4401 2006 10 24.11904 01 51 09.43 +18 09 04.3 21.2R 613620 950 Cs4401 2006 10 24.16969 01 51 09.12 +18 09 02.2 21.4R 613620 950 Cs4401 2006 10 24.20654 01 51 08.87 +18 09 00.7 21.3R 613620 950 Cs4401 2006 12 14.75877 01 46 45.18 +17 34 56.6 23.1V 613620 540 Ct6402 2006 12 15.90111 01 46 41.77 +17 34 18.7 22.2V 613620 J86 Ct6402 2006 12 15.91530 01 46 41.74 +17 34 18.3 22.5V 613620 J86 Ct6402 2006 12 17.89277 01 46 36.34 +17 33 14.8 22.5V 613620 J86 Ct6402 2006 12 17.90690 01 46 36.31 +17 33 14.3 22.8V 613620 J86 Ct6402 2007 01 12.80083 01 46 11.10 +17 23 00.7 22.3V 613620 493 Ct6402 2007 01 12.84514 01 46 11.13 +17 23 00.1 22.5V 613620 493 Ct6402 2007 01 12.88784 01 46 11.16 +17 22 59.3 22.4V 613620 493 Ct6403 2007 11 11.29249 01 59 33.28 +18 14 21.9 22.6R 613620 688 C~02IB 2007 11 11.35324 01 59 32.88 +18 14 19.8 613620 688 C~02IB 2008 10 23.38432 02 11 41.91 +18 41 39.1 22.4r 613620 695 C~02IB 2008 10 23.43956 02 11 41.56 +18 41 37.1 22.2r 613620 695 C~02IB 2008 10 24.33837 02 11 35.89 +18 41 03.8 22.3r 613620 695 C~02IB 2008 10 24.44363 02 11 35.23 +18 40 59.9 22.4r 613620 695 C~02IB 2008 11 30.09188 02 07 58.54 +18 17 11.9 22.9R 613620 688 C~02Mi 2008 11 30.13998 02 07 58.26 +18 17 09.8 613620 688 C~02Mi 2008 11 30.20559 02 07 57.93 +18 17 07.6 613620 688 C~02Mi 2009 01 17.219784 02 06 05.88 +17 55 28.6 613620 645 C~1S6x 2009 01 17.220613 02 06 05.89 +17 55 28.6 613620 645 C~1S6x 2009 01 17.223101 02 06 05.89 +17 55 28.6 613620 645 C~1S6x 2010 10 08.39964 02 33 46.453 +19 13 52.67 23.0G 613620 F51 C~2rXl 2010 10 08.43603 02 33 46.239 +19 13 51.50 22.7G 613620 F51 C~2rXl 2010 10 08.45511 02 33 46.119 +19 13 50.92 23.4G 613620 F51 C~2rXl 2010 10 09.33211 02 33 41.22 +19 13 26.1 22.6R 613620 688 C~0Nkb 2010 10 09.41946 02 33 40.70 +19 13 23.2 613620 688 C~0Nkb 2010 11 03.44702 02 31 06.739 +18 59 32.58 23.2G 613620 F51 C~2rXl 2012 11 03.48445 02 51 30.759 +19 15 25.43 22.8G 613620 F51 C~2rXl 2012 11 05.36802 02 51 18.633 +19 14 21.85 22.9G 613620 F51 C~2rXl 2013 10 25.36959 03 02 39.752 +19 25 11.65 22.3G 613620 F51 C~2rXl 2013 10 30.50168 03 02 07.671 +19 22 33.25 22.4G 613620 F51 C~2rXl 2013 11 04.37606 03 01 36.478 +19 19 57.95 22.3G 613620 F51 C~2rXl 2014 10 25.61315 03 12 45.389 +19 27 42.80 22.3G 613620 F51 C~2rXl 2014 11 28.51748 03 09 09.504 +19 10 06.14 22.9G 613620 F51 C~2rXl 2015 01 14.33156 03 05 46.854 +18 50 18.03 23.1G 613620 F51 C~2rXm 2015 09 09.55571 03 25 53.186 +19 43 09.42 23.3G 613620 F51 C~2rXm 2015 10 08.42794 03 24 20.629 +19 35 22.86 22.3G 613620 F51 C~2rXm 2015 11 04.41010 03 21 47.435 +19 23 35.52 23.1G 613620 F51 C~2rXm 2016 10 07.44964 03 34 14.759 +19 33 28.10 22.8G 613620 F51 C~2rXm 2016 10 07.46266 03 34 14.705 +19 33 27.85 23.3G 613620 F51 C~2rXm 2016 10 07.47568 03 34 14.644 +19 33 27.45 23.1G 613620 F51 C~2rXm 2016 10 07.48874 03 34 14.580 +19 33 27.39 22.6G 613620 F51 C~2rXm 2016 12 24.41188 03 26 37.271 +18 58 44.91 23.0G 613620 F51 C~2rXm 2017 10 28.57447 03 42 14.112 +19 21 27.50 22.8G 613620 F51 C~2rXm 2017 10 28.58685 03 42 14.052 +19 21 27.32 22.0G 613620 F51 C~2rXm 2017 10 28.59916 03 42 13.953 +19 21 27.04 23.2G 613620 F51 C~2rXm 2017 12 08.28142 03 37 55.543 +19 03 04.71 23.5G 613620 F51 C~2rXm 2017 12 08.29609 03 37 55.455 +19 03 04.14 23.3G 613620 F51 C~2rXm 2017 12 08.31082 03 37 55.375 +19 03 03.76 22.8G 613620 F51 C~2rXm 2017 12 08.32560 03 37 55.280 +19 03 03.41 22.4G 613620 F51 C~2rXm 2017 12 09.28657 03 37 49.490 +19 02 38.14 22.8G 613620 F51 C~2rXm 2020 12 09.280010 04 06 47.558 +18 43 21.59 23.1G 613620 G37 C~4Tzu 2020 12 09.322910 04 06 47.289 +18 43 20.39 613620 G37 C~4Tzu 2020 12 09.358790 04 06 47.055 +18 43 19.92 613620 G37 C~4Tzu
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 0.08 0.00 -0.50
2 0.0027 0.00 -0.06 0.00 -0.35
3 0.0027 0.00 0.16 0.00 -0.41
4 0.0027 0.00 0.24 0.00 -0.10
5 1.1333 0.00 -0.05 0.00 -0.01
6 1.1333 0.00 0.13 0.00 0.23
7 1.1333 0.00 0.24 0.00 0.12
8 7.0271 0.00 -0.30 0.00 0.08
9 7.0272 0.00 -0.23 0.00 0.18
10 7.0273 0.00 -0.57 0.00 -0.03
11 7.0274 0.00 -0.10 0.00 0.04
12 7.0275 0.00 -0.13 0.00 -0.10
13 7.0297 0.00 0.05 0.00 0.27
14 7.0298 0.00 0.03 0.00 -0.03
15 7.0299 0.00 -0.16 0.00 0.04
16 7.0301 0.00 -0.04 0.00 -0.01
17 7.0303 0.00 -0.06 0.00 0.13
18 7.0304 0.00 0.13 0.00 0.06
19 7.0305 0.00 -0.11 0.00 0.04
20 7.1716 0.00 0.79 0.00 0.45
21 7.1748 0.00 -0.28 0.00 0.02
22 7.1748 0.00 -0.10 0.00 0.09
23 7.1802 0.00 -0.12 0.00 -0.01
24 7.1803 0.00 0.01 0.00 -0.06
25 7.2512 0.00 -0.15 0.00 0.12
26 7.2513 0.00 -0.13 0.00 0.19
27 7.2514 0.00 -0.09 0.00 0.04
28 8.0793 0.00 0.07 0.00 -0.10
29 8.0795 0.00 -0.40 0.00 0.29
30 9.0296 0.00 -0.13 0.00 0.10
31 9.0298 0.00 -0.07 0.00 0.16
32 9.0322 0.00 -0.07 0.00 0.16
33 9.0325 0.00 0.17 0.00 0.20
34 9.1329 0.00 0.08 0.00 0.40
35 9.1330 0.00 -0.49 0.00 0.10
36 9.1332 0.00 -0.48 0.00 0.36
37 9.2646 0.00 0.10 0.00 -0.42
38 9.2646 0.00 0.24 0.00 -0.41
39 9.2646 0.00 0.22 0.00 -0.37
40 10.9872 0.00 0.28 0.00 0.02
41 10.9873 0.00 0.18 0.00 -0.12
42 10.9874 0.00 0.02 0.00 -0.16
43 10.9898 0.00 0.45 0.00 0.20
44 10.9900 0.00 0.19 0.00 -0.17
45 11.0585 0.00 0.62 0.00 -0.09
46 13.0600 0.00 0.16 0.00 0.00
47 13.0652 0.00 0.00 0.00 0.03
48 14.0344 0.00 -0.03 0.00 0.14
49 14.0484 0.00 0.24 0.00 -0.10
50 14.0618 0.00 -0.50 0.00 -0.05
51 15.0343 0.00 0.09 0.00 -0.13
52 15.1272 0.00 0.05 0.00 -0.06
53 15.2553 0.00 0.02 0.00 -0.09
54 15.9076 0.00 0.32 0.00 -0.08
55 15.9866 0.00 0.04 0.00 0.05
56 16.0605 0.00 0.02 0.00 -0.09
57 16.9860 0.00 0.11 0.00 0.02
58 16.9860 0.00 0.20 0.00 0.04
59 16.9861 0.00 0.18 0.00 -0.09
60 16.9861 0.00 0.13 0.00 0.12
61 17.1994 0.00 -0.12 0.00 0.03
62 18.0431 0.00 0.15 0.00 -0.11
63 18.0432 0.00 0.37 0.00 0.03
64 18.0432 0.00 -0.01 0.00 0.07
65 18.1546 0.00 -0.30 0.00 0.11
66 18.1546 0.00 -0.26 0.00 -0.08
67 18.1547 0.00 -0.10 0.00 -0.08
68 18.1547 0.00 -0.15 0.00 -0.05
69 18.1573 0.00 -0.11 0.00 -0.27
70 21.1580 0.00 -0.18 0.00 0.04
71 21.1581 0.00 -0.09 0.00 -0.21
72 21.1582 0.00 -0.16 0.00 0.11
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.
613620 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.695 39.695 39.695 ecceobj 0.234 0.234 0.234 incobj 14.810 14.810 14.810 qmin 27.593 27.590 27.600 qmax 51.911 51.925 51.897 amean 39.455 39.455 39.455 amin 39.008 39.011 39.002 amax 39.992 39.995 39.994 emean 0.249 0.249 0.249 emin 0.185 0.186 0.185 emax 0.299 0.300 0.299 imean 14.655 14.655 14.655 imin 12.081 12.081 12.080 imax 17.492 17.493 17.493 excite_mean 0.357 0.357 0.357 fracstop 1.000 1.000 1.000 cjmean 2.905 2.905 2.905 libcent 0 178.8 179.0 179.0 libamp 0 84.9 84.9 84.6 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 86.3 86.2 86.3 kozaiamp 63.4 63.4 63.4