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: 330836 # Created Fri Nov 22 02:07:02 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 83 observations of 85 # Arc: 10.26y # First observation: 2002/02/12 # Last observation: 2012/05/19 # Chi-squared of fit: 355.95 DOF: 160 RMS: 0.37 # Min/Max residuals: -1.80 1.04 # Exact a, adot, b, bdot, g, gdot: 2.989510E-05 1.521087E-01 -8.482055E-07 -3.836969E-03 7.856130E-02 -3.463751E-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 19.145550 146.160897 0.039098 0.322679 -0.929755 2452318.010253 # Heliocentric elements and errors Epoch: 2452318.5000 = 2002/02/13 Mean Anomaly: 342.45402 +/- 0.000 Argument of Peri: 140.12200 +/- 0.000 Long of Asc Node: 50.37577 +/- 0.000 Inclination: 17.86871 +/- 0.000 Eccentricity: 0.42217288 +/- 0.0000 Semi-Major Axis: 21.60946863 +/- 0.0000 Time of Perihelion: 2454106.7968 +/- 0.0 Perihelion: 12.48653712 +/- 0.0000 Aphelion: 30.73240014 +/- 0.0000 Period (y) 100.4556 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -10.78261479 +/- 0.0000 Ecliptic Y 7.28196515 +/- 0.0000 Ecliptic Z 4.17470656 +/- 0.0000 Ecliptic XDOT -0.00204965 +/- 0.0000 Ecliptic YDOT -0.00501435 +/- 0.0000 Ecliptic ZDOT -0.00052200 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 13.66464007 +/- 0.0000 Geocenter to KBO 12.72903124 +/- 0.0000 # Hcoef: 9.72
The following table shows the complete astrometric record for 330836. 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 (330836) followed by the observatory code and reference code for the source of the astrometry.
2002 02 12.50951 10 23 18.53 +30 40 28.4 20.5R 330836 644 C~0X6b 2002 02 12.52531 10 23 18.31 +30 40 30.5 330836 644 C~0X6b 2002 03 20.25591 10 15 08.47 +31 07 08.0 21. R 330836 644 C~0X6b 2002 03 20.28963 10 15 08.12 +31 07 08.1 330836 644 C~0X6b 2005 06 05.203398 11 53 58.43 +16 48 51.1 21.4V 330836 645 C~1SyT 2005 06 05.204227 11 53 58.43 +16 48 51.0 21.1V 330836 645 C~1SyT 2005 06 05.206715 11 53 58.43 +16 48 50.9 21.9V 330836 645 C~1SyT 2005 06 06.151050 11 53 59.59 +16 47 14.2 21.3V 330836 645 C~1SyT 2005 06 06.151879 11 53 59.60 +16 47 14.1 21.1V 330836 645 C~1SyT 2005 06 06.154367 11 53 59.60 +16 47 13.8 21.8V 330836 645 C~1SyT 2008 03 10.42621 13 48 49.35 -01 35 21.8 21.1V 330836 G96 C~0AGV 2008 03 10.43696 13 48 49.28 -01 35 21.1 21.2V 330836 G96 C~0AGV 2008 03 10.44760 13 48 49.14 -01 35 20.9 21.4V 330836 G96 C~0AGV 2008 03 10.45838 13 48 49.03 -01 35 20.1 21.0V 330836 G96 C~0AGV 2008 03 27.25247 13 45 47.47 -01 19 45.5 20.9V 330836 691 C~0AGV 2008 03 27.26763 13 45 47.29 -01 19 44.2 20.8V 330836 691 C~0AGV 2008 03 27.28280 13 45 47.09 -01 19 43.2 20.7V 330836 691 C~0AGV 2008 04 01.24699 13 44 45.04 -01 15 03.3 20.9V 330836 691 C~0AGV 2008 04 01.26982 13 44 44.76 -01 15 02.3 21.1V 330836 691 C~0AGW 2008 04 01.28496 13 44 44.57 -01 15 01.3 21.2V 330836 691 C~0AGW 2008 04 04.24286 13 44 06.30 -01 12 16.6 20.7V 330836 691 C~0AGW 2008 04 04.26378 13 44 06.05 -01 12 16.3 20.8V 330836 691 C~0AGW 2008 04 04.28542 13 44 05.76 -01 12 14.7 20.8V 330836 691 C~0AGW 2009 04 25.86493 14 12 20.92 -07 08 08.7 20.2R 330836 069 C~06i2 2009 04 25.87550 14 12 20.77 -07 08 08.2 20.1R 330836 069 C~079B 2009 04 25.88608 14 12 20.65 -07 08 08.8 20.2R 330836 069 C~06i2 2009 04 25.89634 14 12 20.47 -07 08 07.6 20.1R 330836 069 C~079B 2009 04 25.90661 14 12 20.36 -07 08 07.5 20.2R 330836 069 C~06i2 2009 04 28.84807 14 11 40.24 -07 06 11.2 19.9R 330836 069 C~06i2 2009 04 28.85870 14 11 40.11 -07 06 10.5 19.9R 330836 069 C~079B 2009 04 28.86998 14 11 39.79 -07 06 10.9 19.9R 330836 069 C~06i2 2009 04 28.89083 14 11 39.61 -07 06 10.2 19.8R 330836 069 C~06i2 2009 04 28.90929 14 11 39.36 -07 06 10.7 19.8R 330836 152 C~0Abf 2009 04 28.92860 14 11 39.08 -07 06 10.0 19.8R 330836 152 C~0Abf 2009 04 30.89976 14 11 12.18 -07 04 54.5 19.9R 330836 069 C~0Auz 2009 05 01.91252 14 10 58.60 -07 04 17.5 19.8R 330836 069 C~0AGW 2009 05 01.94088 14 10 58.18 -07 04 16.5 20.0R 330836 069 C~0AGW 2009 05 25.25433 14 06 08.24 -06 54 24.2 22.0V 330836 G96 C~0AGW 2009 05 25.26224 14 06 08.17 -06 54 23.9 20.8V 330836 G96 C~0AGW 2009 05 25.27634 14 06 07.99 -06 54 24.1 21.5V 330836 G96 C~0AGW 2009 05 25.28440 14 06 07.92 -06 54 24.0 21.9V 330836 G96 C~0AGW 2010 04 20.37696 14 46 16.24 -13 01 36.4 20.6R 330836 688 C~0GWf 2010 04 20.43649 14 46 15.44 -13 01 34.2 330836 688 C~0GWf 2010 05 05.95491 14 42 44.07 -12 52 52.5 19.6R 330836 069 C~0HI4 2010 05 05.96154 14 42 44.02 -12 52 52.0 19.8R 330836 069 C~0HI4 2010 05 05.97444 14 42 43.78 -12 52 47.1 19.8R 330836 069 C~0HI4 2010 05 10.23972 14 41 45.37 -12 50 35.4 20.6R 330836 290 C~0K91 2010 05 10.24509 14 41 45.32 -12 50 35.4 20.7R 330836 290 C~0K91 2010 05 10.24889 14 41 45.23 -12 50 34.9 20.7R 330836 290 C~0K91 2010 05 10.25269 14 41 45.20 -12 50 34.9 20.6R 330836 290 C~0K91 2010 05 10.25648 14 41 45.13 -12 50 35.0 20.3R 330836 290 C~0K91 2010 05 10.26027 14 41 45.08 -12 50 34.2 20.6R 330836 290 C~0K91 2010 05 10.26406 14 41 45.01 -12 50 34.1 20.5R 330836 290 C~0K91 2010 05 10.26786 14 41 44.95 -12 50 34.0 20.4R 330836 290 C~0K91 2010 05 10.27166 14 41 44.95 -12 50 34.0 20.5R 330836 290 C~0K91 2010 05 10.27545 14 41 44.89 -12 50 33.8 20.6R 330836 290 C~0K91 2010 05 10.27924 14 41 44.82 -12 50 34.0 20.7R 330836 290 C~0K91 2010 05 10.28303 14 41 44.79 -12 50 33.5 20.7R 330836 290 C~0K91 2010 05 11.24907 14 41 31.64 -12 50 03.8 20.3R 330836 290 C~0K91 2010 05 11.25384 14 41 31.57 -12 50 03.6 20.3R 330836 290 C~0K91 2010 05 11.25764 14 41 31.52 -12 50 03.4 20.6R 330836 290 C~0K91 2010 05 11.26144 14 41 31.48 -12 50 03.6 20.1R 330836 290 C~0K91 2010 05 11.26522 14 41 31.41 -12 50 03.2 20.4R 330836 290 C~0K91 2010 05 11.26902 14 41 31.34 -12 50 03.0 20.0R 330836 290 C~0K91 2010 05 11.27281 14 41 31.31 -12 50 03.1 20.3R 330836 290 C~0K91 2010 05 11.27661 14 41 31.26 -12 50 02.9 20.3R 330836 290 C~0K91 2010 05 11.28041 14 41 31.20 -12 50 02.9 20.3R 330836 290 C~0K91 2010 05 11.28419 14 41 31.15 -12 50 02.8 20.5R 330836 290 C~0K91 2010 05 11.28799 14 41 31.10 -12 50 02.4 20.2R 330836 290 C~0K91 2010 05 11.29178 14 41 31.04 -12 50 02.4 20.3R 330836 290 C~0K91 2010 05 20.23487 14 39 32.29 -12 45 46.1 21.4V 330836 G96 C~0HYQ 2010 05 20.24081 14 39 32.22 -12 45 45.9 20.9V 330836 G96 C~0HYQ 2010 05 20.24677 14 39 32.14 -12 45 45.5 20.3V 330836 G96 C~0HYQ 2010 05 20.25274 14 39 32.04 -12 45 46.0 21.1V 330836 G96 C~0HYQ 2011 04 30.38433 15 16 23.16 -18 13 26.7 20.5R 330836 290 C~0VXc 2011 04 30.39237 15 16 23.08 -18 13 26.4 20.7R 330836 290 C~0VXc 2011 05 01.28336 15 16 11.03 -18 13 05.8 20.5R 330836 290 C~0VXc 2011 05 01.29501 15 16 10.88 -18 13 05.3 20.4R 330836 290 C~0VXc 2011 05 01.30126 15 16 10.78 -18 13 04.2 20.5R 330836 290 C~0VXc 2012 04 24.40942 15 49 27.03 -22 51 10.3 20.7R 330836 290 C~0gaN 2012 04 24.41322 15 49 26.97 -22 51 10.2 20.6R 330836 290 C~0gaN 2012 05 19.39634 15 43 51.177 -22 46 01.40 21.1w 330836 F51 C~0gv1 2012 05 19.41181 15 43 50.944 -22 46 01.16 21.1w 330836 F51 C~0gv1 2012 05 19.42729 15 43 50.737 -22 46 00.77 21.1w 330836 F51 C~0gv1 2012 05 19.44276 15 43 50.478 -22 46 00.50 21.2w 330836 F51 C~0gv1
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 0.17 0.00 -0.04
2 0.0000 0.00 0.21 0.00 0.85
3 0.0979 0.00 -0.59 0.00 0.03
4 0.0980 0.00 0.36 0.00 -0.09
5 3.3092 0.00 -0.11 0.00 -0.17
6 3.3092 0.00 -0.12 0.00 -0.18
7 3.3092 0.00 -0.15 0.00 -0.03
8 3.3118 0.00 0.18 0.00 -0.07
9 3.3118 0.00 0.32 0.00 -0.08
10 3.3118 0.00 0.28 0.00 -0.13
11 6.0723 0.00 -0.09 0.00 0.04
12 6.0724 0.00 0.38 0.00 0.17
13 6.0724 0.00 -0.21 0.00 -0.19
14 6.0724 0.00 -0.33 0.00 0.04
15 6.1184 0.00 0.10 0.00 -0.03
16 6.1184 0.00 0.22 0.00 0.41
17 6.1185 0.00 0.04 0.00 0.55
18 6.1321 0.00 -0.13 0.00 0.06
19 6.1321 0.00 0.12 0.00 -0.22
20 6.1322 0.00 0.23 0.00 -0.07
21 6.1403 0.00 -0.51 0.00 0.42
22 6.1403 0.00 -0.09 0.00 -0.42
23 6.1404 0.00 -0.12 0.00 -0.01
24 7.1988 0.00 0.30 0.00 0.51
25 7.1988 0.00 0.24 0.00 0.58
26 7.1988 0.00 0.64 0.00 -0.44
27 7.1989 0.00 0.06 0.00 0.35
28 7.1989 0.00 0.55 0.00 0.04
29 7.2070 0.00 0.42 0.00 0.59
30 7.2070 0.00 0.67 0.00 0.88
31 7.2070 0.00 -1.80 0.00 0.05
32 7.2071 0.00 -0.19 0.00 -0.05
33 7.2071 0.00 -0.12 0.00 -1.27
34 7.2072 0.00 -0.32 0.00 -1.31
35 7.2126 0.00 ( -2.38) 0.00 ( -0.17)
36 7.2153 0.00 -0.58 0.00 -0.33
37 7.2154 0.00 -1.06 0.00 -0.36
38 7.2792 0.00 -0.47 0.00 0.31
39 7.2793 0.00 -0.20 0.00 0.51
40 7.2793 0.00 -0.55 0.00 0.14
41 7.2793 0.00 -0.26 0.00 0.14
42 8.1831 0.00 0.36 0.00 0.03
43 8.1832 0.00 0.38 0.00 0.22
44 8.2257 0.00 -0.41 0.00 0.03
45 8.2257 0.00 0.23 0.00 0.31
46 8.2258 0.00 ( -0.68) 0.00 ( 4.79)
47 8.2375 0.00 -0.04 0.00 -0.37
48 8.2375 0.00 0.33 0.00 -0.53
49 8.2375 0.00 -0.23 0.00 -0.15
50 8.2375 0.00 0.11 0.00 -0.27
51 8.2375 0.00 -0.15 0.00 -0.49
52 8.2375 0.00 -0.11 0.00 0.19
53 8.2375 0.00 -0.37 0.00 0.17
54 8.2375 0.00 -0.48 0.00 0.16
55 8.2375 0.00 0.32 0.00 0.04
56 8.2376 0.00 0.21 0.00 0.12
57 8.2376 0.00 -0.05 0.00 -0.20
58 8.2376 0.00 0.29 0.00 0.18
59 8.2402 0.00 0.20 0.00 -0.17
60 8.2402 0.00 0.14 0.00 -0.12
61 8.2402 0.00 0.18 0.00 -0.03
62 8.2403 0.00 0.37 0.00 -0.35
63 8.2403 0.00 0.11 0.00 -0.07
64 8.2403 0.00 -0.15 0.00 0.01
65 8.2403 0.00 0.19 0.00 -0.20
66 8.2403 0.00 0.23 0.00 -0.12
67 8.2403 0.00 0.12 0.00 -0.24
68 8.2403 0.00 0.15 0.00 -0.25
69 8.2403 0.00 0.19 0.00 0.03
70 8.2403 0.00 0.08 0.00 -0.09
71 8.2648 0.00 0.21 0.00 -0.16
72 8.2648 0.00 0.34 0.00 -0.12
73 8.2649 0.00 0.31 0.00 0.13
74 8.2649 0.00 -0.01 0.00 -0.53
75 9.2098 0.00 -0.44 0.00 -0.06
76 9.2098 0.00 0.02 0.00 0.05
77 9.2122 0.00 -0.07 0.00 -0.14
78 9.2123 0.00 0.10 0.00 0.09
79 9.2123 0.00 -0.10 0.00 1.04
80 10.1955 0.00 0.41 0.00 0.26
81 10.1955 0.00 0.22 0.00 0.34
82 10.2639 0.00 0.05 0.00 0.12
83 10.2639 0.00 -0.12 0.00 0.09
84 10.2640 0.00 0.11 0.00 0.20
85 10.2640 0.00 -0.45 0.00 0.19
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.
330836 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 21.467 21.467 21.467 ecceobj 0.419 0.419 0.419 incobj 17.869 17.869 17.869 qmin 12.323 12.321 12.325 qmax 30.684 30.674 31.132 amean 21.398 21.387 21.601 amin 21.109 21.096 21.149 amax 21.803 21.660 22.183 emean 0.405 0.406 0.401 emin 0.385 0.385 0.385 emax 0.421 0.421 0.421 imean 17.833 17.656 17.929 imin 17.062 17.062 17.063 imax 18.372 18.316 18.647 excite_mean 0.508 0.507 0.506 fracstop 0.003 0.002 0.003 cjmean 2.869 2.870 2.865 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 161.8 154.4 160.1 kozaiamp 22.5 14.3 21.8