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: 03QO112 # Created Sun Dec 22 02:08:32 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 9 observations of 9 # Arc: 53.88d # First observation: 2003/08/29 # Last observation: 2003/10/22 # Chi-squared of fit: 34.78 DOF: 12 RMS: 0.35 # Min/Max residuals: -0.62 0.67 # Exact a, adot, b, bdot, g, gdot: 2.140705E-05 6.190012E-02 3.643475E-06 7.601457E-03 4.559898E-02 3.143812E-02 # Covariance matrix: 4.0412E-13 4.5824E-10 3.8635E-14 -7.2704E-12 6.4992E-11 -5.2972E-09 4.5824E-10 2.2088E-06 1.9075E-10 -3.5793E-08 3.0776E-07 -2.6266E-05 3.8635E-14 1.9075E-10 2.9778E-13 -5.4070E-12 2.6544E-11 -2.2760E-09 -7.2704E-12 -3.5793E-08 -5.4070E-12 6.2813E-10 -4.9814E-09 4.2695E-07 6.4992E-11 3.0776E-07 2.6544E-11 -4.9814E-09 4.2907E-08 -3.6543E-06 -5.2972E-09 -2.6266E-05 -2.2760E-09 4.2695E-07 -3.6543E-06 3.1356E-04 # lat0 lon0 xBary yBary zBary JD0 -0.399592 -28.995929 -0.079390 -0.007033 -1.010960 2452880.906283 # Heliocentric elements and errors Epoch: 2452880.5000 = 2003/08/29 Mean Anomaly: 25.51117 +/- 37.975 Argument of Peri: 275.02612 +/- 0.572 Long of Asc Node: 334.30428 +/- 0.084 Inclination: 7.03292 +/- 0.249 Eccentricity: 0.55473419 +/- 0.2617 Semi-Major Axis: 35.73765646 +/- 2.8337 Time of Perihelion: 2447350.6241 +/- 8257.7 Perihelion: 15.91275671 +/- 9.4388 Aphelion: 55.56255621 +/- 10.3397 Period (y) 213.6472 +/- 25.41 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 20.10110683 +/- 0.0912 Ecliptic Y -11.04703224 +/- 0.0506 Ecliptic Z -0.15284182 +/- 0.0007 Ecliptic XDOT 0.00345015 +/- 0.0009 Ecliptic YDOT 0.00232846 +/- 0.0006 Ecliptic ZDOT 0.00044340 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 22.93695289 +/- 0.0836 Geocenter to KBO 21.93011387 +/- 0.1043 # Hcoef: 11.93
The following table shows the complete astrometric record for 03QO112. 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 (03QO112) followed by the observatory code and reference code for the source of the astrometry.
2003 08 29.40554 22 12 46.08 -11 29 27.9 24.9R 03QO112 568 Ci9432 2003 08 29.42797 22 12 45.91 -11 29 28.7 25.3R 03QO112 568 Ci9432 2003 08 29.44919 22 12 45.74 -11 29 29.5 03QO112 568 Ci9432 2003 08 30.45645 22 12 37.59 -11 30 10.0 03QO112 568 Ci9432 2003 08 30.47869 22 12 37.46 -11 30 10.8 25.1R 03QO112 568 Ci9432 2003 09 28.24557 22 09 07.29 -11 47 14.3 03QO112 568 Ci9432 2003 09 28.26954 22 09 07.13 -11 47 15.0 03QO112 568 Ci9432 2003 10 22.23855 22 07 14.54 -11 55 31.0 03QO112 568 Ci9432 2003 10 22.28284 22 07 14.40 -11 55 31.6 03QO112 568 Ci9432
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 0.09 0.00 -0.19
2 0.0001 0.00 0.29 0.00 -0.09
3 0.0001 0.00 0.35 0.00 -0.04
4 0.0029 0.00 -0.62 0.00 -0.17
5 0.0029 0.00 0.16 0.00 -0.08
6 0.0817 0.00 -0.19 0.00 0.67
7 0.0818 0.00 -0.31 0.00 0.67
8 0.1474 0.00 0.16 0.00 -0.32
9 0.1475 0.00 0.17 0.00 -0.41
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.
03QO112 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 36.188 36.188 36.187 ecceobj 0.559 0.559 0.558 incobj 6.976 6.976 6.976 qmin 15.682 15.669 15.780 qmax 56.399 56.400 56.398 amean 35.571 35.626 35.753 amin 35.010 35.168 35.378 amax 36.188 36.188 36.187 emean 0.553 0.553 0.554 emin 0.546 0.548 0.550 emax 0.558 0.559 0.558 imean 8.255 8.283 8.283 imin 8.011 8.139 8.139 imax 8.462 8.442 8.477 excite_mean 0.572 0.572 0.573 fracstop 0.002 0.002 0.001 cjmean 2.636 2.636 2.635 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 282.2 279.9 277.6 kozaiamp 7.7 4.8 2.6