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: 03QC112 # Created Thu May 24 01:37:17 2012 # Orbit generated from Bernstein formalism # Fitting 12 observations of 12 # Arc: 6.07y # First observation: 2003/08/24 # Last observation: 2009/09/18 Preliminary a, adot, b, bdot, g, gdot: -0.000090 0.040689 0.000025 -0.013354 0.039876 0.000000 # Chi-squared of fit: 12.53 DOF: 18 RMS: 0.18 # Min/Max residuals: -0.50 0.36 # Exact a, adot, b, bdot, g, gdot: 1.734453E-05 4.070469E-02 -5.173569E-06 -1.334956E-02 4.036808E-02 4.974865E-03 # Covariance matrix: 4.1402E-13 -5.4685E-13 -4.0279E-14 1.8195E-13 3.6620E-13 -2.1967E-12 -5.4685E-13 1.7741E-12 1.3311E-13 -6.1707E-13 -3.5778E-13 7.4566E-12 -4.0279E-14 1.3311E-13 1.7306E-13 -7.8596E-14 -3.0034E-14 5.6749E-13 1.8195E-13 -6.1707E-13 -7.8596E-14 2.4277E-13 1.2669E-13 -2.6308E-12 3.6620E-13 -3.5778E-13 -3.0034E-14 1.2669E-13 7.5796E-13 -1.5257E-12 -2.1967E-12 7.4566E-12 5.6749E-13 -2.6308E-12 -1.5257E-12 3.1790E-11 # lat0 lon0 xBary yBary zBary JD0 -1.856335 -15.364966 0.247027 -0.031847 -0.984361 2452875.770213 # Heliocentric elements and errors Epoch: 2452870.5000 = 2003/08/19 Mean Anomaly: 152.72567 +/- 0.033 Argument of Peri: 21.86474 +/- 0.024 Long of Asc Node: 158.67914 +/- 0.000 Inclination: 18.28931 +/- 0.000 Eccentricity: 0.27815855 +/- 0.0001 Semi-Major Axis: 20.45621961 +/- 0.0019 Time of Perihelion: 2472327.6626 +/- 2.4 Perihelion: 14.76614729 +/- 0.0018 Aphelion: 26.14629193 +/- 0.0027 Period (y) 92.5223 +/- 0.01 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.75561380 +/- 0.0005 Ecliptic Y -7.05543505 +/- 0.0002 Ecliptic Z -0.80259792 +/- 0.0000 Ecliptic XDOT 0.00102312 +/- 0.0000 Ecliptic YDOT 0.00257470 +/- 0.0000 Ecliptic ZDOT -0.00091568 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 25.75390731 +/- 0.0005 Geocenter to KBO 24.77204636 +/- 0.0005 # Hcoef: 8.48
The following table shows the complete astrometric record for 03QC112. 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 (03QC112) followed by the observatory code and reference code for the source of the astrometry.
2003 08 24.26947 23 06 17.37 -07 45 44.1 21.8R 03QC112 807 Ci4592 2003 08 24.36129 23 06 16.76 -07 45 48.7 03QC112 807 Ci4592 2003 09 03.10301 23 05 07.92 -07 54 24.7 22.6R 03QC112 304 Ci4592 2003 09 03.17936 23 05 07.37 -07 54 29.3 03QC112 304 Ci4592 2003 10 22.13867 22 59 53.62 -08 32 03.6 22.7R 03QC112 695 Cj4700 2003 10 22.21847 22 59 53.24 -08 32 06.3 03QC112 695 Cj4700 2003 10 23.12160 22 59 49.17 -08 32 34.9 03QC112 304 Ci9432 2003 10 23.14826 22 59 49.02 -08 32 35.6 03QC112 304 Ci9432 2004 08 13.17600 23 17 12.675 -07 24 46.56 21.6R 03QC112 807 2004 08 13.28230 23 17 12.004 -07 24 51.84 03QC112 807 2009 09 18.33000 00 01 17.676 -06 45 24.29 22.5R 03QC112 688 2009 09 18.36047 00 01 17.472 -06 45 25.85 03QC112 688
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 -0.29 0.00 -0.01 2 0.0003 -10.14 0.27 -0.73 -0.03 3 0.0269 -1153.08 0.06 -80.90 0.03 4 0.0271 -1162.39 -0.04 -81.99 -0.50 5 0.1612 -6331.09 -0.14 -369.46 0.12 6 0.1614 -6337.33 -0.22 -369.79 0.06 7 0.1639 -6404.12 0.34 -373.06 0.07 8 0.1639 -6406.45 0.02 -372.86 0.36 9 0.9717 9469.46 0.03 -2644.29 -0.07 10 0.9720 9458.18 -0.03 -2645.22 -0.01 11 6.0700 47330.40 -0.12 -16716.04 0.01 12 6.0701 47326.80 0.12 -16716.17 -0.01
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.
03QC112 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 20.554 20.559 20.548 ecceobj 0.272 0.272 0.272 incobj 18.216 18.216 18.216 qmin 14.851 14.861 14.842 qmax 26.295 26.296 26.292 amean 20.483 20.517 20.527 amin 20.080 20.212 20.204 amax 20.781 20.626 20.763 emean 0.253 0.256 0.248 emin 0.209 0.208 0.197 emax 0.278 0.278 0.278 imean 17.743 17.651 17.908 imin 17.181 17.173 17.189 imax 18.944 18.945 19.241 excite_mean 0.397 0.398 0.396 fracstop 0.006 0.005 0.007 cjmean 2.992 2.991 2.991 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 57.5 54.3 62.0 kozaiamp 33.6 31.2 36.3