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: 229762 # Created Wed Jun 19 01:36:47 2013 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 58 observations of 58 # Arc: 27.34y # First observation: 1982/08/16 # Last observation: 2009/12/20 # Chi-squared of fit: 120.72 DOF: 110 RMS: 0.26 # Min/Max residuals: -0.82 0.93 # Exact a, adot, b, bdot, g, gdot: 1.284617E-05 1.516168E-02 -5.788935E-07 -1.465535E-03 1.800073E-02 -7.150818E-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 -22.835814 27.248483 0.902589 -0.178946 -0.425734 2445198.269046 # Heliocentric elements and errors Epoch: 2445198.5000 = 1982/08/17 Mean Anomaly: 322.88018 +/- 0.000 Argument of Peri: 347.14095 +/- 0.000 Long of Asc Node: 131.18156 +/- 0.000 Inclination: 23.36142 +/- 0.000 Eccentricity: 0.48671505 +/- 0.0000 Semi-Major Axis: 72.79339504 +/- 0.0000 Time of Perihelion: 2468589.0130 +/- 0.0 Perihelion: 37.36375384 +/- 0.0000 Aphelion: 108.22303625 +/- 0.0000 Period (y) 621.0780 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 46.33425330 +/- 0.0000 Ecliptic Y 22.84415593 +/- 0.0000 Ecliptic Z -21.55985491 +/- 0.0000 Ecliptic XDOT -0.00201808 +/- 0.0000 Ecliptic YDOT 0.00154525 +/- 0.0000 Ecliptic ZDOT 0.00021657 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 55.97844319 +/- 0.0000 Geocenter to KBO 55.55367854 +/- 0.0000 # Hcoef: 3.45
The following table shows the complete astrometric record for 229762. 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 (229762) followed by the observatory code and reference code for the source of the astrometry.
1982 08 16.76843 02 13 50.71 -10 50 56.0 229762 260 x9539 1982 11 07.55427 02 10 07.58 -11 25 56.0 229762 260 x9539 1993 09 23.70708 02 53 32.78 -08 12 55.4 229762 260 x9539 1993 11 07.57343 02 50 57.83 -08 31 13.3 229762 260 x9539 1997 09 30.72490 03 09 43.23 -06 59 39.2 229762 260 x9539 2001 12 14.11104 03 22 36.32 -05 55 34.8 19.6R 229762 644 Cx9539 2001 12 14.13367 03 22 36.25 -05 55 34.7 20.0R 229762 644 Cx9539 2002 10 05.47288 03 31 37.63 -05 15 29.4 19.5R 229762 644 Cx9539 2002 10 05.48322 03 31 37.58 -05 15 29.8 19.7R 229762 644 Cx9539 2002 10 05.49384 03 31 37.52 -05 15 29.8 19.3R 229762 644 Cx9539 2002 10 06.47565 03 31 34.75 -05 15 58.3 19.9R 229762 644 Cx9539 2002 10 06.48602 03 31 34.69 -05 15 58.8 19.8R 229762 644 Cx9539 2002 10 06.49652 03 31 34.63 -05 15 59.4 19.9R 229762 644 Cx9539 2002 10 10.46772 03 31 22.58 -05 17 53.4 19.4R 229762 644 Cx9539 2002 10 10.47832 03 31 22.54 -05 17 53.9 19.8R 229762 644 Cx9539 2002 10 10.48903 03 31 22.51 -05 17 54.4 19.8R 229762 644 Cx9539 2002 10 28.46109 03 30 18.44 -05 25 35.3 19.8R 229762 644 Cx9539 2002 10 28.47147 03 30 18.38 -05 25 36.1 19.7R 229762 644 Cx9539 2002 10 28.48193 03 30 18.35 -05 25 36.0 19.6R 229762 644 Cx9539 2002 11 06.39713 03 29 42.45 -05 28 38.9 19.7R 229762 644 Cx9539 2002 11 06.41824 03 29 42.36 -05 28 39.4 19.5R 229762 644 Cx9539 2002 11 06.43925 03 29 42.24 -05 28 40.0 19.7R 229762 644 Cx9539 2006 12 05.34547 03 46 32.17 -04 01 16.8 20.2R 229762 675 Cx9539 2006 12 05.36649 03 46 32.07 -04 01 16.2 20.2R 229762 675 Cx9539 2006 12 12.26859 03 46 03.70 -04 01 24.8 20.2R 229762 675 Cx9539 2006 12 12.29027 03 46 03.61 -04 01 24.9 20.2R 229762 675 Cx9539 2006 12 12.31377 03 46 03.52 -04 01 24.7 20.4R 229762 675 Cx9539 2007 10 19.37909 03 54 41.32 -03 24 09.2 20.4R 229762 675 Cx9539 2007 10 19.42329 03 54 41.17 -03 24 10.3 20.3R 229762 675 Cx9539 2007 10 20.37033 03 54 37.90 -03 24 34.8 20.3R 229762 675 Cx9539 2007 10 20.41657 03 54 37.71 -03 24 36.0 20.4R 229762 675 Cx9539 2007 11 13.23758 03 53 02.99 -03 33 06.9 229762 675 Cx9539 2007 11 13.29185 03 53 02.71 -03 33 07.6 229762 675 Cx9539 2007 11 13.34666 03 53 02.49 -03 33 08.7 229762 675 Cx9539 2007 11 14.20819 03 52 58.77 -03 33 22.4 229762 675 Cx9539 2007 12 03.15465 03 51 35.89 -03 36 41.8 229762 675 Cx9539 2007 12 03.20847 03 51 35.64 -03 36 41.8 229762 675 Cx9539 2007 12 03.26258 03 51 35.42 -03 36 42.2 229762 675 Cx9539 2007 12 03.31614 03 51 35.18 -03 36 42.6 229762 675 Cx9539 2008 01 14.12616 03 49 08.97 -03 31 12.5 229762 675 Cx9539 2008 01 15.09397 03 49 06.81 -03 30 52.1 229762 675 Cx9539 2008 09 21.33657 04 00 48.782 -02 46 01.99 229762 309 C~0HEb 2008 09 21.33793 04 00 48.783 -02 46 02.07 229762 309 C~0HEb 2008 09 21.33904 04 00 48.784 -02 46 02.17 229762 309 C~0HEb 2008 11 13.26346 03 57 58.49 -03 08 17.2 20.0R 229762 250 S~06BL 2008 11 13.27041 03 57 58.46 -03 08 17.4 229762 250 S~06BL 2008 11 13.27666 03 57 58.43 -03 08 17.5 229762 250 S~06BL 2008 11 13.28360 03 57 58.40 -03 08 17.6 229762 250 S~06BL 2009 01 29.80909 03 53 35.12 -02 59 48.7 20.0R 229762 130 C~03JO 2009 11 20.32245 04 02 32.20 -02 44 21.4 19.5R 229762 688 C~0C8N 2009 11 20.36765 04 02 32.00 -02 44 21.9 229762 688 C~0C8N 2009 11 20.40331 04 02 31.83 -02 44 22.3 229762 688 C~0C8N 2009 12 19.05653 04 00 27.744 -02 46 20.64 19.6R 229762 809 C~0CfW 2009 12 19.14500 04 00 27.391 -02 46 20.28 19.5R 229762 809 C~0CfW 2009 12 19.21328 04 00 27.107 -02 46 19.84 19.5R 229762 809 C~0CfW 2009 12 20.06432 04 00 23.755 -02 46 15.60 19.3R 229762 809 C~0CfW 2009 12 20.14858 04 00 23.425 -02 46 15.34 19.6R 229762 809 C~0CfW 2009 12 20.22391 04 00 23.123 -02 46 14.80 19.7R 229762 809 C~0CfW
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 0.22 2 0.2267 0.00 -0.30 0.00 0.31 3 11.1046 0.00 0.35 0.00 -0.08 4 11.2274 0.00 0.28 0.00 -0.26 5 15.1238 0.00 0.00 0.00 0.59 6 19.3274 0.00 -0.17 0.00 -0.24 7 19.3275 0.00 0.01 0.00 -0.22 8 20.1361 0.00 0.25 0.00 -0.12 9 20.1361 0.00 -0.05 0.00 -0.21 10 20.1361 0.00 -0.48 0.00 0.10 11 20.1388 0.00 0.64 0.00 0.36 12 20.1389 0.00 0.21 0.00 0.16 13 20.1389 0.00 -0.22 0.00 -0.13 14 20.1498 0.00 0.15 0.00 0.16 15 20.1498 0.00 0.06 0.00 -0.04 16 20.1498 0.00 0.13 0.00 -0.24 17 20.1990 0.00 0.12 0.00 0.05 18 20.1991 0.00 -0.17 0.00 -0.52 19 20.1991 0.00 0.01 0.00 -0.19 20 20.2235 0.00 0.16 0.00 0.23 21 20.2235 0.00 0.14 0.00 0.12 22 20.2236 0.00 -0.35 0.00 -0.09 23 24.3027 0.00 0.07 0.00 0.26 24 24.3028 0.00 -0.08 0.00 0.93 25 24.3217 0.00 0.11 0.00 0.26 26 24.3218 0.00 0.08 0.00 0.14 27 24.3218 0.00 0.17 0.00 0.31 28 25.1735 0.00 -0.18 0.00 0.22 29 25.1736 0.00 -0.10 0.00 0.28 30 25.1762 0.00 0.09 0.00 0.41 31 25.1763 0.00 -0.29 0.00 0.41 32 25.2415 0.00 0.34 0.00 0.02 33 25.2417 0.00 -0.30 0.00 0.19 34 25.2418 0.00 0.01 0.00 -0.02 35 25.2442 0.00 0.06 0.00 -0.03 36 25.2961 0.00 -0.03 0.00 -0.48 37 25.2962 0.00 -0.26 0.00 -0.20 38 25.2964 0.00 0.00 0.00 -0.33 39 25.2965 0.00 -0.08 0.00 -0.47 40 25.4110 0.00 -0.21 0.00 -0.82 41 25.4136 0.00 -0.08 0.00 -0.30 42 26.0987 0.00 -0.06 0.00 0.12 43 26.0988 0.00 -0.01 0.00 0.08 44 26.0988 0.00 0.03 0.00 0.01 45 26.2437 0.00 0.26 0.00 -0.08 46 26.2437 0.00 0.26 0.00 -0.17 47 26.2437 0.00 0.22 0.00 -0.17 48 26.2437 0.00 0.22 0.00 -0.16 49 26.4560 0.00 0.81 0.00 0.05 50 27.2623 0.00 -0.09 0.00 -0.13 51 27.2624 0.00 -0.02 0.00 -0.07 52 27.2625 0.00 -0.15 0.00 -0.02 53 27.3410 0.00 0.09 0.00 0.09 54 27.3412 0.00 0.17 0.00 0.05 55 27.3414 0.00 0.05 0.00 0.17 56 27.3437 0.00 0.07 0.00 0.21 57 27.3440 0.00 0.19 0.00 0.03 58 27.3442 0.00 0.17 0.00 0.17
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.
229762 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 74.505 74.504 74.506 ecceobj 0.493 0.493 0.493 incobj 23.355 23.355 23.355 qmin 36.018 35.678 35.971 qmax 113.321 113.986 113.565 amean 73.694 73.669 73.679 amin 72.628 72.611 72.635 amax 75.229 75.169 75.189 emean 0.494 0.499 0.496 emin 0.479 0.481 0.480 emax 0.511 0.516 0.511 imean 21.525 21.103 21.370 imin 20.773 20.374 20.682 imax 22.388 22.129 22.283 excite_mean 0.616 0.615 0.616 fracstop 1.000 1.000 1.000 cjmean 2.938 2.938 2.938 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 164.0 172.5 166.6 kozaiamp 179.9 180.0 180.0