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: 87269 # Created Wed Dec 25 02:06:46 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 90 observations of 90 # Arc: 19.35y # First observation: 2000/07/29 # Last observation: 2019/12/03 # Chi-squared of fit: 230.41 DOF: 174 RMS: 0.28 # Min/Max residuals: -0.73 0.85 # Exact a, adot, b, bdot, g, gdot: 2.713062E-05 8.391539E-02 -1.019538E-05 -3.017952E-02 4.807203E-02 -1.714755E-02 # 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 -2.848396 -29.054876 0.427342 -0.045934 -0.919812 2451754.785333 # Heliocentric elements and errors Epoch: 2451754.5000 = 2000/07/29 Mean Anomaly: 359.89714 +/- 0.000 Argument of Peri: 212.50061 +/- 0.000 Long of Asc Node: 142.34128 +/- 0.000 Inclination: 20.06446 +/- 0.000 Eccentricity: 0.96807262 +/- 0.0000 Semi-Major Axis: 650.36859329 +/- 0.0000 Time of Perihelion: 2453485.3659 +/- 0.0 Perihelion: 20.76456709 +/- 0.0000 Aphelion: 1279.97261948 +/- 0.0000 Period (y) 16586.2247 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 18.76541415 +/- 0.0000 Ecliptic Y -10.90615838 +/- 0.0000 Ecliptic Z -1.03395217 +/- 0.0000 Ecliptic XDOT 0.00138659 +/- 0.0000 Ecliptic YDOT 0.00469857 +/- 0.0000 Ecliptic ZDOT -0.00166801 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 21.72923671 +/- 0.0000 Geocenter to KBO 20.80226856 +/- 0.0000 # Hcoef: 9.08
The following table shows the complete astrometric record for 87269. 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 (87269) followed by the observatory code and reference code for the source of the astrometry.
2000 07 29.28459 22 16 07.28 -13 48 00.0 22.1R 87269 807 Cc0956 2000 07 29.39321 22 16 06.56 -13 48 06.1 87269 807 Cc0956 2000 08 01.31959 22 15 47.83 -13 50 54.6 22.3R 87269 807 Cc0956 2000 08 01.39458 22 15 47.29 -13 50 58.9 87269 807 Cc0956 2000 08 26.17752 22 12 50.17 -14 15 31.8 22.0R 87269 807 Cc0956 2000 08 26.23134 22 12 49.76 -14 15 34.8 87269 807 Cc0956 2000 08 27.12379 22 12 43.14 -14 16 27.4 22.1R 87269 807 Cc0956 2000 08 27.19393 22 12 42.60 -14 16 31.6 87269 807 Cc0956 2000 09 19.17813 22 10 01.49 -14 37 18.1 22.1R 87269 695 Cc2364 2000 09 19.27423 22 10 00.91 -14 37 23.0 87269 695 Cc2364 2000 11 27.08742 22 08 17.34 -14 57 55.2 22.5R 87269 695 Cc2364 2000 11 28.07493 22 08 21.72 -14 57 38.6 22.6R 87269 695 Cc2364 2000 11 28.13522 22 08 22.00 -14 57 37.5 22.5R 87269 695 Cc2364 2000 11 29.12890 22 08 26.63 -14 57 20.3 22.6R 87269 695 Cc2364 2001 08 13.44975 22 35 54.17 -13 53 22.2 87269 568 Cd2824 2001 08 13.49015 22 35 53.89 -13 53 24.9 87269 568 Cd2824 2001 08 14.46817 22 35 47.06 -13 54 26.5 87269 568 Cd2824 2001 08 14.47136 22 35 47.05 -13 54 26.7 87269 568 Cd2824 2001 08 14.47364 22 35 47.03 -13 54 26.7 87269 568 Cd2824 2001 08 14.47723 22 35 46.99 -13 54 27.1 87269 568 Cd2824 2001 08 14.48135 22 35 46.95 -13 54 27.1 87269 568 Cd2824 2001 10 11.05014 22 29 21.76 -14 45 44.1 22.2 87269 304 Ce8850 2001 10 11.07903 22 29 21.61 -14 45 45.2 87269 304 Ce8850 2002 11 30.22701 22 50 03.77 -14 38 42.1 22.5R 87269 568 Cg7741 2002 11 30.26844 22 50 03.89 -14 38 41.1 87269 568 Cg7741 2002 12 01.21935 22 50 06.86 -14 38 20.3 87269 568 Cg7741 2004 05 27.34872 23 42 20.91 -11 46 58.7 22.5R 87269 304 Ck8646 2004 05 27.38536 23 42 21.17 -11 46 58.4 87269 304 Ck8646 2004 08 23.16130 23 42 00.61 -12 51 24.2 21.9R 87269 304 l5129 2004 08 23.29451 23 41 59.74 -12 51 33.5 87269 304 l5129 2006 07 25.17864 00 28 36.62 -10 53 28.4 21.8R 87269 250 S~06GV 2006 07 25.18304 00 28 36.61 -10 53 28.7 87269 250 S~06GV 2006 07 25.19657 00 28 36.60 -10 53 29.5 87269 250 S~06GV 2006 07 25.20097 00 28 36.60 -10 53 29.7 87269 250 S~06GV 2009 09 17.580311 01 28 50.111 -09 08 48.93 22.3G 87269 F51 C~420J 2009 09 17.589473 01 28 50.068 -09 08 49.75 22.0G 87269 F51 C~420J 2009 09 28.490910 01 27 38.936 -09 20 49.53 22.4G 87269 F51 C~420J 2010 10 29.403627 01 43 56.408 -08 46 06.24 22.3G 87269 F51 C~420J 2010 10 31.372547 01 43 42.093 -08 47 18.28 22.4G 87269 F51 C~420J 2010 10 31.386560 01 43 41.988 -08 47 18.76 22.7G 87269 F51 C~420J 2010 10 31.401820 01 43 41.868 -08 47 19.30 22.2G 87269 F51 C~420J 2010 10 31.415918 01 43 41.773 -08 47 19.76 22.1G 87269 F51 C~420J 2011 09 25.474154 02 06 59.041 -07 13 47.22 22.1G 87269 F51 C~420J 2011 09 25.486827 02 06 58.965 -07 13 48.06 21.7G 87269 F51 C~420J 2011 09 25.499448 02 06 58.856 -07 13 48.39 22.6G 87269 F51 C~420J 2011 09 25.512082 02 06 58.805 -07 13 49.16 22.2G 87269 F51 C~420J 2012 10 09.548961 02 23 29.368 -06 26 47.91 22.6G 87269 F51 C~420J 2012 10 09.562291 02 23 29.275 -06 26 48.70 23.1G 87269 F51 C~420J 2012 11 02.401826 02 20 39.274 -06 45 10.60 22.8G 87269 F51 C~420J 2012 11 16.383303 02 18 59.534 -06 51 35.74 23.1G 87269 F51 C~420J 2014 09 16.533010 02 58 30.292 -04 05 30.91 23.1G 87269 F51 C~420J 2014 09 24.502433 02 58 00.135 -04 13 07.19 23.5G 87269 F51 C~420J 2014 09 29.564700 02 57 36.921 -04 17 53.46 24.0G 87269 F51 C~420J 2014 11 25.312562 02 51 22.358 -04 54 42.45 23.1G 87269 F51 C~420J 2015 11 17.413035 03 07 33.599 -03 55 32.68 23.1G 87269 F51 C~420J 2015 12 09.352343 03 05 08.286 -03 59 31.06 23.2G 87269 F51 C~420J 2015 12 09.356217 03 05 08.253 -03 59 31.41 22.5G 87269 F51 C~420J 2015 12 09.365014 03 05 08.199 -03 59 31.15 23.0G 87269 F51 C~420J 2015 12 09.368867 03 05 08.185 -03 59 31.27 22.3G 87269 F51 C~420J 2015 12 09.377629 03 05 08.128 -03 59 30.95 22.6G 87269 F51 C~420J 2015 12 09.381485 03 05 08.119 -03 59 31.03 23.5G 87269 F51 C~420J 2015 12 09.390218 03 05 08.051 -03 59 31.11 23.3G 87269 F51 C~420J 2015 12 09.394056 03 05 08.022 -03 59 31.17 23.4G 87269 F51 C~420J 2015 12 31.308297 03 03 22.308 -03 54 26.93 23.2G 87269 F51 C~420J 2015 12 31.321288 03 03 22.258 -03 54 26.48 23.5G 87269 F51 C~420J 2015 12 31.334263 03 03 22.206 -03 54 26.34 23.4G 87269 F51 C~420J 2015 12 31.347240 03 03 22.159 -03 54 25.95 23.5G 87269 F51 C~420J 2016 01 03.280374 03 03 12.398 -03 53 04.57 23.0G 87269 F51 C~420J 2016 01 03.290702 03 03 12.360 -03 53 04.61 23.6G 87269 F51 C~420J 2016 01 03.301048 03 03 12.312 -03 53 04.15 23.5G 87269 F51 C~420K 2016 01 09.278306 03 02 56.051 -03 49 51.66 22.8G 87269 F51 C~420K 2016 10 09.500088 03 25 59.133 -02 37 07.37 23.2G 87269 F51 C~420K 2016 10 09.512216 03 25 59.077 -02 37 07.74 23.3G 87269 F51 C~420K 2016 10 09.536478 03 25 58.969 -02 37 08.61 22.5G 87269 F51 C~420K 2017 01 16.229390 03 16 46.370 -02 52 38.49 23.3G 87269 F51 C~420K 2017 01 28.270866 03 16 36.577 -02 43 49.04 22.9G 87269 F51 C~420K 2017 09 17.582018 03 40 35.059 -01 28 11.55 23.4G 87269 F51 C~420K 2017 10 29.437477 03 37 26.663 -01 59 59.93 23.0G 87269 F51 C~420K 2017 11 24.423095 03 34 30.474 -02 11 52.94 22.9G 87269 F51 C~420K 2019 01 08.321086 03 42 58.866 -01 19 19.43 22.7G 87269 F51 C~420K 2019 10 06.624872 04 03 44.481 -00 09 47.86 23.3G 87269 F51 C~420K 2019 10 24.532070 04 02 22.322 -00 21 53.64 23.0G 87269 F51 C~420K 2019 10 25.491244 04 02 17.131 -00 22 29.65 22.8G 87269 F51 C~420K 2019 10 25.503954 04 02 17.039 -00 22 29.67 22.4G 87269 F51 C~420K 2019 10 25.516663 04 02 16.996 -00 22 30.39 22.0G 87269 F51 C~420K 2019 10 25.529354 04 02 16.920 -00 22 30.54 22.6G 87269 F51 C~420K 2019 11 02.590571 04 01 30.226 -00 27 11.32 20.5G 87269 F51 C~420K 2019 11 26.486298 03 58 54.877 -00 36 54.87 23.9G 87269 F51 C~420K 2019 11 29.406861 03 58 35.381 -00 37 35.83 23.6G 87269 F51 C~420K 2019 12 03.332709 03 58 09.364 -00 38 19.14 23.9G 87269 F51 C~420K
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 0.07 0.00 0.09
2 0.0003 0.00 -0.24 0.00 0.16
3 0.0083 0.00 0.47 0.00 0.08
4 0.0085 0.00 -0.13 0.00 0.10
5 0.0764 0.00 -0.05 0.00 -0.32
6 0.0765 0.00 -0.08 0.00 -0.16
7 0.0790 0.00 -0.21 0.00 -0.36
8 0.0791 0.00 -0.34 0.00 -0.44
9 0.1421 0.00 -0.26 0.00 0.31
10 0.1423 0.00 0.35 0.00 0.06
11 0.3307 0.00 0.48 0.00 -0.22
12 0.3334 0.00 -0.01 0.00 -0.12
13 0.3336 0.00 0.19 0.00 -0.07
14 0.3363 0.00 0.25 0.00 -0.49
15 1.0408 0.00 -0.17 0.00 0.25
16 1.0409 0.00 -0.05 0.00 0.11
17 1.0436 0.00 -0.05 0.00 0.30
18 1.0436 0.00 0.14 0.00 0.30
19 1.0436 0.00 0.09 0.00 0.44
20 1.0436 0.00 -0.12 0.00 0.27
21 1.0437 0.00 -0.28 0.00 0.53
22 1.2013 0.00 -0.22 0.00 -0.32
23 1.2014 0.00 -0.44 0.00 -0.45
24 2.3380 0.00 0.02 0.00 -0.44
25 2.3381 0.00 0.06 0.00 -0.33
26 2.3407 0.00 0.47 0.00 -0.18
27 3.8277 0.00 0.27 0.00 -0.39
28 3.8278 0.00 0.40 0.00 -0.09
29 4.0681 0.00 0.58 0.00 -0.51
30 4.0685 0.00 0.65 0.00 -0.39
31 5.9874 0.00 -0.64 0.00 0.85
32 5.9874 0.00 -0.73 0.00 0.81
33 5.9874 0.00 -0.71 0.00 0.78
34 5.9875 0.00 -0.65 0.00 0.83
35 9.1370 0.00 0.05 0.00 0.11
36 9.1370 0.00 0.26 0.00 -0.09
37 9.1669 0.00 -0.03 0.00 0.24
38 10.2508 0.00 0.18 0.00 -0.11
39 10.2562 0.00 0.21 0.00 -0.07
40 10.2563 0.00 0.19 0.00 -0.05
41 10.2563 0.00 0.09 0.00 -0.05
42 10.2563 0.00 0.23 0.00 -0.01
43 11.1573 0.00 0.21 0.00 -0.32
44 11.1573 0.00 0.21 0.00 -0.35
45 11.1573 0.00 -0.30 0.00 0.12
46 11.1574 0.00 0.07 0.00 0.15
47 12.1978 0.00 0.32 0.00 -0.10
48 12.1979 0.00 0.28 0.00 -0.16
49 12.2632 0.00 0.05 0.00 -0.16
50 12.3014 0.00 -0.04 0.00 0.05
51 14.1335 0.00 0.26 0.00 -0.18
52 14.1553 0.00 -0.40 0.00 -0.14
53 14.1691 0.00 -0.30 0.00 0.14
54 14.3245 0.00 -0.11 0.00 -0.43
55 15.3022 0.00 -0.15 0.00 0.02
56 15.3623 0.00 0.06 0.00 0.01
57 15.3623 0.00 -0.08 0.00 -0.35
58 15.3623 0.00 -0.09 0.00 -0.10
59 15.3623 0.00 0.05 0.00 -0.23
60 15.3623 0.00 -0.00 0.00 0.08
61 15.3623 0.00 0.22 0.00 -0.00
62 15.3624 0.00 -0.01 0.00 -0.10
63 15.3624 0.00 -0.09 0.00 -0.16
64 15.4224 0.00 -0.01 0.00 -0.17
65 15.4224 0.00 -0.04 0.00 -0.06
66 15.4224 0.00 -0.11 0.00 -0.26
67 15.4225 0.00 -0.10 0.00 -0.20
68 15.4305 0.00 0.23 0.00 0.24
69 15.4305 0.00 0.17 0.00 -0.10
70 15.4306 0.00 -0.04 0.00 0.05
71 15.4469 0.00 -0.01 0.00 -0.06
72 16.1977 0.00 -0.11 0.00 -0.07
73 16.1977 0.00 0.01 0.00 0.15
74 16.1978 0.00 0.32 0.00 0.46
75 16.4680 0.00 -0.20 0.00 0.04
76 16.5010 0.00 0.07 0.00 -0.05
77 17.1370 0.00 0.11 0.00 0.19
78 17.2516 0.00 0.21 0.00 0.22
79 17.3228 0.00 -0.31 0.00 0.09
80 18.4450 0.00 -0.21 0.00 -0.40
81 19.1878 0.00 -0.21 0.00 -0.01
82 19.2368 0.00 -0.45 0.00 0.29
83 19.2394 0.00 0.15 0.00 -0.12
84 19.2395 0.00 -0.16 0.00 0.33
85 19.2395 0.00 0.27 0.00 0.08
86 19.2395 0.00 0.20 0.00 0.40
87 19.2616 0.00 0.18 0.00 0.26
88 19.3270 0.00 0.18 0.00 0.10
89 19.3350 0.00 0.19 0.00 -0.09
90 19.3458 0.00 -0.23 0.00 -0.32
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.
87269 quality flag:3 Type: CENTAURS CENTAURS CENTAURS axisobj 683.987 683.891 684.083 ecceobj 0.970 0.970 0.970 incobj 20.055 20.055 20.055 qmin 17.073 17.437 16.383 qmax 1500.003 1347.009 1777.783 amean 541.201 409.461 656.213 amin 437.260 310.666 495.762 amax 760.415 683.889 899.310 emean 0.961 0.948 0.968 emin 0.949 0.928 0.953 emax 0.973 0.970 0.978 imean 19.326 19.720 19.121 imin 17.530 17.482 17.317 imax 21.282 21.802 21.217 excite_mean 1.016 1.006 1.022 fracstop 1.000 1.000 1.000 cjmean 2.259 2.264 2.254 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 223.2 226.8 219.9 kozaiamp 12.9 16.8 10.1