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: 03QN112 # Created Sun Dec 22 02:08:32 2024 # Orbit generated from Bernstein formalism # Fitting 16 observations of 16 # Arc: 53.95d # First observation: 2003/08/29 # Last observation: 2003/10/22 Preliminary a, adot, b, bdot, g, gdot: -0.000003 0.129058 -0.000002 -0.013650 0.064687 0.000000 # Chi-squared of fit: 273.98 DOF: 26 RMS: 0.73 # Min/Max residuals: -1.76 1.89 # Exact a, adot, b, bdot, g, gdot: 2.400601E-05 1.002525E-01 -4.186630E-06 -1.382066E-02 6.010005E-02 -1.657471E-02 # Covariance matrix: 1.6000E-13 4.3964E-11 -2.2915E-15 3.7550E-13 6.8579E-12 -3.4237E-10 4.3964E-11 4.4769E-07 -3.1284E-11 5.2271E-09 6.3274E-08 -4.2574E-06 -2.2915E-15 -3.1284E-11 1.4148E-13 -1.6559E-12 -4.3969E-12 3.0225E-10 3.7550E-13 5.2271E-09 -1.6559E-12 9.7828E-11 7.3445E-10 -5.0543E-08 6.8579E-12 6.3274E-08 -4.3969E-12 7.3445E-10 8.9565E-09 -5.9924E-07 -3.4237E-10 -4.2574E-06 3.0225E-10 -5.0543E-08 -5.9924E-07 4.0968E-05 # lat0 lon0 xBary yBary zBary JD0 -0.400925 -29.018318 -0.078748 -0.007062 -1.011021 2452880.845963 # Heliocentric elements and errors Epoch: 2452880.5000 = 2003/08/29 Mean Anomaly: 341.76456 +/- 4.093 Argument of Peri: 220.09849 +/- 9.833 Long of Asc Node: 148.50313 +/- 0.021 Inclination: 7.85790 +/- 0.060 Eccentricity: 0.33343263 +/- 0.0579 Semi-Major Axis: 25.11670480 +/- 1.2795 Time of Perihelion: 2455209.4280 +/- 491.5 Perihelion: 16.74197588 +/- 1.6851 Aphelion: 33.49143373 +/- 2.2412 Period (y) 125.8787 +/- 9.62 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 15.46946877 +/- 0.0229 Ecliptic Y -8.48880261 +/- 0.0127 Ecliptic Z -0.11647136 +/- 0.0002 Ecliptic XDOT 0.00154607 +/- 0.0002 Ecliptic YDOT 0.00435632 +/- 0.0002 Ecliptic ZDOT -0.00062413 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 17.64590035 +/- 0.0210 Geocenter to KBO 16.63892142 +/- 0.0262 # Hcoef: 12.93
The following table shows the complete astrometric record for 03QN112. 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 (03QN112) followed by the observatory code and reference code for the source of the astrometry.
2003 08 29.34522 22 12 41.07 -11 30 01.0 24.8R 03QN112 568 Ci9432 2003 08 29.36179 22 12 40.87 -11 30 02.2 25.0R 03QN112 568 Ci9432 2003 08 29.37837 22 12 40.82 -11 30 03.1 25.1R 03QN112 568 Ci9432 2003 08 29.40554 22 12 40.41 -11 30 05.1 25. R 03QN112 568 Ci9432 2003 08 29.42797 22 12 40.16 -11 30 06.7 03QN112 568 Ci9432 2003 08 29.44919 22 12 39.91 -11 30 08.3 03QN112 568 Ci9432 2003 08 30.40766 22 12 30.98 -11 31 06.7 03QN112 568 Ci9432 2003 08 30.42890 22 12 30.76 -11 31 07.9 24.5R 03QN112 568 Ci9432 2003 08 30.45645 22 12 30.28 -11 31 09.8 25.4R 03QN112 568 Ci9432 2003 08 30.47869 22 12 30.09 -11 31 11.1 24.8R 03QN112 568 Ci9432 2003 09 20.36928 22 09 21.73 -11 51 21.3 03QN112 568 Ci9432 2003 09 20.39746 22 09 21.48 -11 51 22.6 03QN112 568 Ci9432 2003 09 29.21743 22 08 14.15 -11 58 38.9 03QN112 568 Ci9432 2003 09 29.26292 22 08 13.83 -11 58 41.0 03QN112 568 Ci9432 2003 10 22.24741 22 06 15.42 -12 12 07.6 03QN112 568 Ci9432 2003 10 22.29207 22 06 15.29 -12 12 08.6 03QN112 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 0.49 0.00 0.11
2 0.0000 -3.17 -0.09 -0.08 0.15
3 0.0001 -4.18 1.50 -0.66 -0.32
4 0.0002 -10.52 -0.59 -0.39 0.13
5 0.0002 -14.53 -1.08 -0.58 0.09
6 0.0003 -18.53 -1.76 -0.77 0.03
7 0.0029 -161.97 1.89 -8.79 -0.60
8 0.0030 -165.42 1.76 -8.76 -0.44
9 0.0030 -172.69 -1.20 -8.04 0.47
10 0.0031 -175.76 -0.80 -8.26 0.38
11 0.0603 -3192.00 -0.11 -162.18 -0.19
12 0.0604 -3195.89 -0.23 -162.10 0.05
13 0.0845 -4274.75 0.05 -222.95 0.10
14 0.0846 -4279.89 0.18 -223.26 0.06
15 0.1476 -6190.41 -0.11 -370.20 0.01
16 0.1477 -6192.55 0.09 -370.47 -0.04
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.
03QN112 quality flag:1 Type: CENTAURR CENTAURR CENTAURR axisobj 25.325 31.647 23.324 ecceobj 0.339 0.526 0.243 incobj 7.826 7.642 8.016 qmin 15.986 14.908 16.960 qmax 34.447 48.974 29.283 amean 25.048 31.646 23.228 amin 24.130 31.279 22.703 amax 25.588 32.021 23.862 emean 0.341 0.524 0.226 emin 0.330 0.520 0.204 emax 0.353 0.530 0.253 imean 6.188 6.777 6.147 imin 5.473 6.530 5.279 imax 7.665 6.965 7.021 excite_mean 0.358 0.537 0.250 fracstop 0.006 0.002 0.006 cjmean 2.907 2.687 2.998 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 257.0 241.6 227.2 kozaiamp 39.9 3.7 49.9