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: 09DJ143 # Created Fri Nov 22 02:09:00 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 61 observations of 61 # Arc: 20.99y # First observation: 2003/03/23 # Last observation: 2024/03/18 # Chi-squared of fit: 29.46 DOF: 116 RMS: 0.12 # Min/Max residuals: -0.34 0.59 # Exact a, adot, b, bdot, g, gdot: 1.582923E-05 2.589933E-02 4.966657E-06 6.860068E-03 2.441801E-02 -6.989980E-03 # Covariance matrix: 3.2431E-13 -5.9792E-14 6.7481E-14 -1.4724E-14 -1.0792E-14 -6.6183E-14 -5.9792E-14 1.2880E-14 -1.4725E-14 3.3214E-15 7.0720E-15 1.4980E-14 6.7481E-14 -1.4725E-14 9.0945E-14 -8.7152E-15 -2.4573E-15 -1.7713E-14 -1.4724E-14 3.3214E-15 -8.7152E-15 1.3178E-15 1.7768E-15 3.9967E-15 -1.0792E-14 7.0720E-15 -2.4573E-15 1.7768E-15 5.4430E-14 8.5653E-15 -6.6183E-14 1.4980E-14 -1.7713E-14 3.9967E-15 8.5653E-15 1.8026E-14 # lat0 lon0 xBary yBary zBary JD0 10.045897 174.768659 -0.131336 0.172020 -0.971030 2452721.690718 # Heliocentric elements and errors Epoch: 2452722.5000 = 2003/03/24 Mean Anomaly: 341.16082 +/- 0.002 Argument of Peri: 83.50313 +/- 0.003 Long of Asc Node: 141.93038 +/- 0.000 Inclination: 17.60742 +/- 0.000 Eccentricity: 0.43493340 +/- 0.0000 Semi-Major Axis: 66.39832371 +/- 0.0046 Time of Perihelion: 2463064.2404 +/- 19.3 Perihelion: 37.51947533 +/- 0.0033 Aphelion: 95.27717209 +/- 0.0068 Period (y) 541.0581 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -41.15346961 +/- 0.0004 Ecliptic Y 3.63967457 +/- 0.0000 Ecliptic Z 7.14399606 +/- 0.0001 Ecliptic XDOT 0.00063093 +/- 0.0000 Ecliptic YDOT -0.00297915 +/- 0.0000 Ecliptic ZDOT 0.00062086 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.92740437 +/- 0.0004 Geocenter to KBO 40.95358779 +/- 0.0004 # Hcoef: 6.39
The following table shows the complete astrometric record for 09DJ143. 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 (09DJ143) followed by the observatory code and reference code for the source of the astrometry.
2003 03 23.189975 11 56 57.93 +11 17 19.8 22.3V 09DJ143 645 C~1qmJ 2003 03 23.190804 11 56 57.93 +11 17 19.8 21.9V 09DJ143 645 C~1qmJ 2003 03 23.193292 11 56 57.92 +11 17 19.8 23.2V 09DJ143 645 C~1qmJ 2009 02 18.588989 12 37 34.809 +09 18 47.73 22.3i 09DJ143 568 C~0aRQ 2009 02 18.626949 12 37 34.686 +09 18 49.07 22.4i 09DJ143 568 C~0aRQ 2009 02 19.484889 12 37 31.951 +09 19 20.78 22.2i 09DJ143 568 C~0aRQ 2009 02 19.544979 12 37 31.748 +09 19 23.01 22.4i 09DJ143 568 C~0aRQ 2009 02 22.531900 12 37 21.814 +09 21 13.87 23.3g 09DJ143 568 C~0aRQ 2009 02 22.59060 12 37 21.60 +09 21 16.1 23.1g 09DJ143 568 C~59g0 2009 02 22.590872 12 37 21.601 +09 21 16.07 24.0g 09DJ143 568 C~0aRQ 2009 02 23.442859 12 37 18.677 +09 21 47.77 22.5i 09DJ143 568 C~0aRQ 2009 02 23.482029 12 37 18.536 +09 21 49.30 23.3g 09DJ143 568 C~0aRQ 2009 02 23.538190 12 37 18.336 +09 21 51.45 23.2g 09DJ143 568 C~0aRQ 2009 02 23.593790 12 37 18.138 +09 21 53.52 23.2g 09DJ143 568 C~0aRQ 2009 04 29.370410 12 32 45.019 +09 55 03.61 09DJ143 568 C~0aRQ 2009 04 29.472138 12 32 44.610 +09 55 05.26 09DJ143 568 C~0aRQ 2009 05 01.264453 12 32 37.992 +09 55 34.13 09DJ143 568 C~0aRQ 2009 05 16.415333 12 31 49.202 +09 58 15.79 09DJ143 568 C~0aRQ 2009 05 16.458269 12 31 49.072 +09 58 16.01 09DJ143 568 C~0aRQ 2009 05 17.421563 12 31 46.494 +09 58 21.19 09DJ143 568 C~0aRQ 2009 05 27.290480 12 31 23.811 +09 58 38.84 09DJ143 568 C~0aRQ 2009 05 27.387665 12 31 23.626 +09 58 38.62 09DJ143 568 C~0aRQ 2009 05 28.296365 12 31 21.922 +09 58 36.98 09DJ143 568 C~0aRQ 2009 05 28.343861 12 31 21.830 +09 58 36.89 09DJ143 568 C~0aRQ 2009 05 29.247447 12 31 20.218 +09 58 34.54 09DJ143 568 C~0aRQ 2009 05 29.310682 12 31 20.106 +09 58 34.33 09DJ143 568 C~0aRQ 2009 05 29.324996 12 31 20.084 +09 58 34.37 09DJ143 568 C~0aRQ 2009 05 29.379361 12 31 19.983 +09 58 34.18 09DJ143 568 C~0aRQ 2009 06 16.280983 12 31 02.224 +09 55 57.29 09DJ143 568 C~0aRQ 2009 06 16.323333 12 31 02.218 +09 55 56.59 09DJ143 568 C~0aRQ 2009 06 17.256804 12 31 02.064 +09 55 42.76 09DJ143 568 C~0aRQ 2009 06 18.251779 12 31 01.984 +09 55 27.39 09DJ143 568 C~0aRQ 2009 06 18.259682 12 31 01.987 +09 55 27.43 09DJ143 568 C~0aRQ 2009 06 19.251645 12 31 01.982 +09 55 11.46 09DJ143 568 C~0aRQ 2009 06 22.252552 12 31 02.557 +09 54 19.87 09DJ143 568 C~0aRQ 2009 06 22.285486 12 31 02.565 +09 54 19.26 09DJ143 568 C~0aRQ 2009 06 24.273377 12 31 03.397 +09 53 42.13 09DJ143 568 C~0aRQ 2009 06 24.285257 12 31 03.402 +09 53 41.91 09DJ143 568 C~0aRQ 2009 06 24.312125 12 31 03.420 +09 53 41.28 09DJ143 568 C~0aRQ 2009 06 24.356337 12 31 03.440 +09 53 40.43 09DJ143 568 C~0aRQ 2013 03 12.30049 13 03 10.66 +08 12 42.5 21.9R 09DJ143 G37 C~1T0w 2013 03 12.43494 13 03 10.08 +08 12 47.5 09DJ143 G37 C~1T0w 2015 02 18.34159 13 18 14.48 +07 14 33.2 22.1R 09DJ143 695 C~1T0w 2015 02 18.43507 13 18 14.25 +07 14 36.5 09DJ143 695 C~1T0w 2015 02 18.52410 13 18 14.04 +07 14 40.0 09DJ143 695 C~1T0w 2020 04 16.50084 13 50 07.808 +05 49 24.50 22.1w 09DJ143 F51 C~3pMG 2020 04 16.51222 13 50 07.761 +05 49 24.73 22.1w 09DJ143 F51 C~3pMG 2020 04 16.53495 13 50 07.638 +05 49 25.75 22.0w 09DJ143 F51 C~3pMG 2022 05 23.187690 14 01 56.429 +05 10 31.48 22.2G 09DJ143 G37 C~5fen 2022 05 23.234870 14 01 56.235 +05 10 31.86 09DJ143 G37 C~5fen 2023 03 17.538369 14 14 11.689 +04 13 50.67 22.0w 09DJ143 F51 C~6V4r 2023 03 17.550324 14 14 11.641 +04 13 51.18 22.2w 09DJ143 F51 C~6V4r 2023 03 17.562286 14 14 11.619 +04 13 51.47 21.9w 09DJ143 F51 C~6V4r 2023 03 17.574263 14 14 11.559 +04 13 51.96 22.1w 09DJ143 F51 C~6V4r 2023 05 14.417978 14 09 53.332 +04 42 32.52 22.2w 09DJ143 F51 C~6o8M 2023 05 14.428637 14 09 53.274 +04 42 32.62 22.3w 09DJ143 F51 C~6o8M 2023 05 14.439295 14 09 53.239 +04 42 32.89 22.3w 09DJ143 F51 C~6o8M 2023 05 14.449956 14 09 53.185 +04 42 32.69 22.1w 09DJ143 F51 C~6o8M 2024 03 18.566258 14 21 25.282 +03 48 14.20 22.2w 09DJ143 F51 C~7wKY 2024 03 18.577749 14 21 25.228 +03 48 14.80 22.4w 09DJ143 F51 C~7wKY 2024 03 18.589212 14 21 25.185 +03 48 15.02 22.4w 09DJ143 F51 C~7wKY
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 0.14 0.00 -0.18
2 0.0000 0.00 0.19 0.00 -0.20
3 0.0000 0.00 0.21 0.00 -0.28
4 5.9121 0.00 -0.06 0.00 0.03
5 5.9122 0.00 -0.05 0.00 -0.03
6 5.9146 0.00 -0.04 0.00 0.02
7 5.9147 0.00 -0.09 0.00 0.03
8 5.9229 0.00 0.03 0.00 0.00
9 5.9231 0.00 -0.08 0.00 0.05
10 5.9231 0.00 -0.06 0.00 0.01
11 5.9254 0.00 -0.01 0.00 -0.07
12 5.9255 0.00 -0.04 0.00 -0.00
13 5.9257 0.00 -0.03 0.00 0.05
14 5.9258 0.00 -0.03 0.00 0.04
15 6.1032 0.00 0.10 0.00 -0.04
16 6.1034 0.00 -0.18 0.00 -0.07
17 6.1083 0.00 -0.04 0.00 0.03
18 6.1498 0.00 -0.03 0.00 -0.03
19 6.1499 0.00 -0.18 0.00 -0.05
20 6.1526 0.00 0.10 0.00 -0.08
21 6.1796 0.00 -0.04 0.00 0.01
22 6.1799 0.00 0.09 0.00 -0.05
23 6.1824 0.00 -0.06 0.00 0.04
24 6.1825 0.00 -0.07 0.00 0.06
25 6.1850 0.00 -0.04 0.00 0.01
26 6.1851 0.00 0.03 0.00 -0.02
27 6.1852 0.00 0.10 0.00 0.06
28 6.1853 0.00 0.07 0.00 0.04
29 6.2343 0.00 -0.11 0.00 0.16
30 6.2345 0.00 -0.01 0.00 0.07
31 6.2370 0.00 -0.06 0.00 0.03
32 6.2397 0.00 -0.05 0.00 -0.05
33 6.2398 0.00 0.01 0.00 0.12
34 6.2425 0.00 -0.21 0.00 0.00
35 6.2507 0.00 -0.10 0.00 -0.00
36 6.2508 0.00 -0.11 0.00 -0.01
37 6.2562 0.00 -0.13 0.00 0.02
38 6.2562 0.00 -0.13 0.00 0.03
39 6.2563 0.00 -0.04 0.00 -0.08
40 6.2564 0.00 -0.04 0.00 -0.07
41 9.9716 0.00 0.59 0.00 0.12
42 9.9719 0.00 0.20 0.00 0.03
43 11.9101 0.00 0.07 0.00 0.25
44 11.9103 0.00 0.07 0.00 0.12
45 11.9106 0.00 0.23 0.00 0.36
46 17.0686 0.00 0.18 0.00 -0.06
47 17.0686 0.00 0.30 0.00 -0.16
48 17.0687 0.00 0.10 0.00 0.18
49 19.1677 0.00 0.07 0.00 -0.01
50 19.1678 0.00 0.06 0.00 -0.07
51 19.9845 0.00 -0.09 0.00 -0.02
52 19.9846 0.00 -0.18 0.00 0.04
53 19.9846 0.00 0.12 0.00 -0.12
54 19.9846 0.00 -0.15 0.00 -0.08
55 20.1430 0.00 -0.04 0.00 -0.00
56 20.1430 0.00 -0.17 0.00 -0.07
57 20.1431 0.00 0.04 0.00 0.03
58 20.1431 0.00 -0.04 0.00 -0.34
59 20.9894 0.00 0.11 0.00 -0.04
60 20.9894 0.00 -0.10 0.00 0.13
61 20.9895 0.00 -0.14 0.00 -0.08
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.
09DJ143 quality flag:3 Type: 13:4EEEEEE13:4EEEEEE13:4EEEEEE axisobj 65.346 65.345 65.346 ecceobj 0.427 0.427 0.427 incobj 17.657 17.657 17.657 qmin 36.444 36.447 36.442 qmax 97.233 97.223 97.244 amean 66.062 66.062 66.062 amin 65.221 65.223 65.219 amax 67.216 67.214 67.217 emean 0.436 0.436 0.436 emin 0.424 0.424 0.424 emax 0.448 0.448 0.448 imean 16.099 16.106 16.096 imin 15.689 15.696 15.682 imax 16.445 16.445 16.445 excite_mean 0.516 0.516 0.516 fracstop 1.000 1.000 1.000 cjmean 3.018 3.018 3.018 libcent 0 181.8 179.6 179.5 libamp 0 98.2 99.3 100.3 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 211.0 211.0 210.8 kozaiamp 133.7 133.4 134.0