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: 07RH283 # Created Thu May 24 01:37:42 2012 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 51 observations of 52 # Arc: 27.67y # First observation: 1983/05/08 # Last observation: 2011/01/09 # Chi-squared of fit: 283.45 DOF: 96 RMS: 0.42 # Min/Max residuals: -1.60 1.41 # Exact a, adot, b, bdot, g, gdot: 2.713596E-05 1.202962E-01 -8.108075E-06 -2.617193E-02 7.422325E-02 -4.987539E-02 # Covariance matrix: 1.4785E-12 -1.2477E-07 -1.4482E-12 -1.2939E-07 -7.2987E-12 -2.5215E-07 -1.2477E-07 1.6682E+00 1.9365E-05 1.7301E+00 -4.6072E-05 3.3715E+00 -1.4482E-12 1.9365E-05 2.2625E-10 2.0082E-05 -5.5389E-10 3.9135E-05 -1.2939E-07 1.7301E+00 2.0082E-05 1.7942E+00 -4.7663E-05 3.4964E+00 -7.2987E-12 -4.6072E-05 -5.5389E-10 -4.7663E-05 1.7040E-06 -9.2898E-05 -2.5215E-07 3.3715E+00 3.9135E-05 3.4964E+00 -9.2898E-05 6.8135E+00 # lat0 lon0 xBary yBary zBary JD0 -19.332060 162.572220 -0.904422 -0.140818 -0.402231 2445462.882756 # Heliocentric elements and errors Epoch: 2445462.5000 = 1983/05/08 Mean Anomaly: 310.57301 +/- 5.141 Argument of Peri: 329.00084 +/- 0.355 Long of Asc Node: 286.58653 +/- 0.038 Inclination: 21.36035 +/- 0.018 Eccentricity: 0.34163956 +/- 0.0407 Semi-Major Axis: 15.99903909 +/- 0.0069 Time of Perihelion: 2448671.7307 +/- 334.1 Perihelion: 10.53313441 +/- 0.6514 Aphelion: 21.46494377 +/- 0.6515 Period (y) 63.9954 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -12.81210225 +/- 0.0004 Ecliptic Y 3.06361241 +/- 0.0001 Ecliptic Z -4.46024894 +/- 0.0002 Ecliptic XDOT 0.00063975 +/- 0.0049 Ecliptic YDOT -0.00485355 +/- 0.0006 Ecliptic ZDOT -0.00030208 +/- 0.0006 # Distances at JD0 (AU) Heliocenter to KBO 13.90801419 +/- 0.0001 Geocenter to KBO 13.47305898 +/- 0.0004 # Hcoef: 8.46
The following table shows the complete astrometric record for 07RH283. 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 (07RH283) followed by the observatory code and reference code for the source of the astrometry.
1983 05 08.38214 10 26 06.23 -11 01 44.7 19.6 07RH283 260 w9865 1984 03 29.51347 10 56 15.94 -16 18 18.0 07RH283 260 w9865 1984 03 29.55514 10 56 15.42 -16 18 14.3 07RH283 260 w9865 1991 04 13.70019 16 28 54.51 -36 52 17.0 18.5R 07RH283 260 w9865 1991 04 13.73491 16 28 54.13 -36 52 17.5 18.5R 07RH283 260 w9865 2001 10 06.16824 22 34 36.09 +12 41 42.8 20.0R 07RH283 644 Cw9865 2001 10 06.17878 22 34 35.97 +12 41 42.1 19.5R 07RH283 644 Cw9865 2001 10 06.18924 22 34 35.87 +12 41 41.6 07RH283 644 Cw9865 2002 08 14.44906 23 08 28.21 +17 14 10.0 19.6R 07RH283 644 Cw9865 2002 08 14.45954 23 08 28.09 +17 14 09.9 19.7R 07RH283 644 Cw9865 2002 08 14.46986 23 08 28.00 +17 14 09.8 19.7R 07RH283 644 Cw9865 2002 08 15.39766 23 08 17.79 +17 14 00.2 19.9R 07RH283 644 Cw9865 2002 08 15.40874 23 08 17.66 +17 14 00.3 19.9R 07RH283 644 Cw9865 2002 08 15.42084 23 08 17.49 +17 13 59.9 20.1R 07RH283 644 Cw9865 2002 08 22.36516 23 06 58.10 +17 11 49.7 19.9R 07RH283 644 Cw9865 2002 08 22.37209 23 06 58.00 +17 11 50.0 19.6R 07RH283 644 Cw9865 2002 08 22.37797 23 06 57.97 +17 11 49.7 20.0R 07RH283 644 Cw9865 2002 08 22.38391 23 06 57.91 +17 11 49.5 19.6R 07RH283 644 Cw9865 2002 08 22.38847 23 06 57.80 +17 11 48.9 19.8R 07RH283 644 Cw9865 2002 08 22.39683 23 06 57.72 +17 11 49.3 20.0R 07RH283 644 Cw9865 2002 09 03.26892 23 04 33.38 +17 04 17.3 19.5R 07RH283 644 Cw9865 2002 09 03.29020 23 04 33.13 +17 04 16.0 19.6R 07RH283 644 Cw9865 2002 09 03.31126 23 04 32.86 +17 04 15.0 19.4R 07RH283 644 Cw9865 2002 09 11.35730 23 02 52.55 +16 56 38.0 19.8R 07RH283 644 Cw9865 2002 09 11.37134 23 02 52.42 +16 56 37.3 19.9R 07RH283 644 Cw9865 2002 09 11.38796 23 02 52.21 +16 56 35.8 19.5R 07RH283 644 Cw9865 2002 10 03.14888 22 58 36.41 +16 28 03.5 19.4R 07RH283 644 Cw9865 2002 10 03.16315 22 58 36.23 +16 28 02.1 19.5R 07RH283 644 Cw9865 2002 10 03.17010 22 58 36.15 +16 28 01.7 19.6R 07RH283 644 Cw9865 2002 10 03.18432 22 58 36.02 +16 27 59.7 19.9R 07RH283 644 Cw9865 2002 10 03.20527 22 58 35.83 +16 27 58.5 20.0R 07RH283 644 Cw9865 2004 09 07.23430 23 47 43.48 +23 03 50.6 20.1R 07RH283 644 Cw9865 2004 09 07.29912 23 47 42.71 +23 03 48.5 21.1R 07RH283 644 Cw9865 2004 09 07.36333 23 47 41.93 +23 03 46.1 21.0R 07RH283 644 Cw9865 2007 09 15.26864 00 47 13.96 +29 29 21.5 21.5R 07RH283 675 Cw9865 2007 09 15.34437 00 47 13.21 +29 29 19.4 21.3R 07RH283 675 Cw9865 2007 09 16.22344 00 47 03.59 +29 28 57.9 21.4R 07RH283 675 Cw9865 2007 09 16.26627 00 47 03.17 +29 28 56.8 21.1R 07RH283 675 Cw9865 2007 10 04.15470 00 43 37.6 +29 16 25.3 07RH283 688 YCw9865 2007 10 04.21506 00 43 36.8 +29 16 22.0 07RH283 688 YCw9865 2007 10 04.27573 00 43 36.1 +29 16 18.3 07RH283 688 YCw9865 2007 11 17.13895 00 36 04.2 +28 14 58.6 07RH283 688 YCw9865 2007 11 17.19821 00 36 03.7 +28 14 52.7 07RH283 688 YCw9865 2007 11 17.24912 00 36 03.4 +28 14 47.6 07RH283 688 YCw9865 2008 08 30.97579 01 08 45.98 +31 05 19.0 21.4V 07RH283 A74 Cz5249 2008 08 31.01910 01 08 45.60 +31 05 18.8 21.5V 07RH283 A74 Cz5249 2008 08 31.06253 01 08 45.24 +31 05 19.3 21.3V 07RH283 A74 Cz5249 2008 10 23.78720 00 59 04.42 +30 33 07.5 21.2V 07RH283 A74 C~00QX 2008 10 23.81970 00 59 04.03 +30 33 05.7 21.1V 07RH283 A74 C~00QX 2008 10 23.85761 00 59 03.50 +30 33 03.9 21.1V 07RH283 A74 C~00QX 2011 01 09.08264 01 28 20.89 +31 27 41.5 21.4R 07RH283 695 C~0U4U 2011 01 09.14807 01 28 20.98 +31 27 37.0 07RH283 695 C~0U4U
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 ( 0.06) 0.00 ( -2.85) 2 0.8929 0.00 0.69 0.00 0.38 3 0.8930 0.00 0.48 0.00 0.13 4 7.9324 0.00 0.27 0.00 0.19 5 7.9325 0.00 -0.13 0.00 0.13 6 18.4142 0.00 0.70 0.00 -0.70 7 18.4142 0.00 0.41 0.00 -0.43 8 18.4143 0.00 0.42 0.00 0.03 9 19.2692 0.00 0.04 0.00 0.13 10 19.2692 0.00 -0.01 0.00 0.13 11 19.2692 0.00 0.37 0.00 0.13 12 19.2718 0.00 0.15 0.00 0.06 13 19.2718 0.00 0.08 0.00 0.28 14 19.2718 0.00 -0.42 0.00 0.02 15 19.2909 0.00 -0.30 0.00 -0.09 16 19.2909 0.00 -0.56 0.00 0.39 17 19.2909 0.00 0.05 0.00 0.25 18 19.2909 0.00 0.22 0.00 0.20 19 19.2909 0.00 -0.61 0.00 -0.28 20 19.2909 0.00 -0.30 0.00 0.34 21 19.3234 0.00 -0.20 0.00 -0.01 22 19.3235 0.00 0.09 0.00 -0.26 23 19.3236 0.00 0.03 0.00 -0.22 24 19.3456 0.00 -0.20 0.00 0.54 25 19.3456 0.00 0.52 0.00 0.74 26 19.3457 0.00 0.52 0.00 0.31 27 19.4052 0.00 0.31 0.00 0.13 28 19.4053 0.00 -0.06 0.00 0.01 29 19.4053 0.00 -0.13 0.00 0.24 30 19.4053 0.00 0.25 0.00 -0.48 31 19.4054 0.00 0.82 0.00 0.21 32 21.3357 0.00 0.42 0.00 0.18 33 21.3358 0.00 0.48 0.00 0.54 34 21.3360 0.00 0.32 0.00 0.61 35 24.3556 0.00 -0.62 0.00 0.27 36 24.3558 0.00 0.65 0.00 -0.08 37 24.3582 0.00 -0.56 0.00 0.14 38 24.3583 0.00 0.25 0.00 0.09 39 24.4073 0.00 0.90 0.00 0.14 40 24.4075 0.00 -0.27 0.00 0.27 41 24.4076 0.00 0.16 0.00 0.05 42 24.5277 0.00 0.44 0.00 -0.07 43 24.5279 0.00 -0.38 0.00 -0.16 44 24.5280 0.00 0.84 0.00 -0.24 45 25.3158 0.00 0.79 0.00 0.19 46 25.3159 0.00 0.44 0.00 -0.59 47 25.3160 0.00 0.43 0.00 -0.65 48 25.4631 0.00 0.19 0.00 -0.46 49 25.4632 0.00 -0.12 0.00 0.26 50 25.4633 0.00 -1.60 0.00 1.41 51 27.6734 0.00 0.13 0.00 0.39 52 27.6736 0.00 0.20 0.00 0.34
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.
07RH283 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 15.983 15.983 15.982 ecceobj 0.340 0.340 0.340 incobj 21.356 21.356 21.356 qmin 9.480 9.640 9.615 qmax 25.940 22.709 27.268 amean 16.859 15.982 17.315 amin 15.248 15.356 15.948 amax 17.883 16.580 18.500 emean 0.410 0.365 0.410 emin 0.319 0.324 0.333 emax 0.455 0.393 0.475 imean 20.786 21.603 21.399 imin 18.513 19.313 18.930 imax 23.416 23.541 23.762 excite_mean 0.543 0.519 0.552 fracstop 0.005 0.005 0.006 cjmean 3.066 3.148 3.030 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 113.8 121.2 127.4 kozaiamp 177.5 176.4 177.3