The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory.
# Object: 06HJ123
# Created Fri May 2 02:36:57 2008
# Orbit generated from Bernstein formalism
# Fitting 14 observations of 14
# Arc: 1.05y
# First observation: 2006/04/27
# Last observation: 2007/05/17
Preliminary a, adot, b, bdot, g, gdot:
-0.000012 0.026458 -0.000027 0.005864 0.026684 0.000000
# Chi-squared of fit: 14.59 DOF: 22 RMS: 0.18
# Min/Max residuals: -0.32 0.26
# Exact a, adot, b, bdot, g, gdot:
1.689082E-05 2.628363E-02 3.017553E-06 5.795062E-03 2.708513E-02 -8.315771E-03
# Covariance matrix:
4.9537E-13 4.3819E-13 -2.0832E-14 2.2671E-13 7.9683E-13 3.5211E-11
4.3819E-13 1.3279E-11 -3.3666E-13 3.4648E-12 7.0995E-12 5.3605E-10
-2.0832E-14 -3.3666E-13 2.6789E-13 -3.7950E-13 -1.9093E-13 -1.4206E-11
2.2671E-13 3.4648E-12 -3.7950E-13 1.4866E-12 1.9898E-12 1.4649E-10
7.9683E-13 7.0995E-12 -1.9093E-13 1.9898E-12 4.7456E-12 3.0812E-10
3.5211E-11 5.3605E-10 -1.4206E-11 1.4649E-10 3.0812E-10 2.2668E-08
# lat0 lon0 xBary yBary zBary JD0
0.384915 -135.536741 0.134490 0.006785 -0.992928 2453852.748064
# Heliocentric elements and errors
Epoch: 2453850.5000 = 2006/04/25
Mean Anomaly: 295.31601 +/- 0.539
Argument of Peri: 101.13093 +/- 0.152
Long of Asc Node: 222.55755 +/- 0.000
Inclination: 12.41994 +/- 0.002
Eccentricity: 0.30033934 +/- 0.0053
Semi-Major Axis: 39.63613207 +/- 0.1376
Time of Perihelion: 2470227.3222 +/- 106.6
Perihelion: 27.73184240 +/- 0.2302
Aphelion: 51.54042173 +/- 0.2752
Period (y) 249.5428 +/- 1.30
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -27.15558372 +/- 0.0021
Ecliptic Y -26.46341528 +/- 0.0021
Ecliptic Z 0.24814538 +/- 0.0000
Ecliptic XDOT 0.00246751 +/- 0.0000
Ecliptic YDOT -0.00131036 +/- 0.0000
Ecliptic ZDOT 0.00058010 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.91832870 +/- 0.0021
Geocenter to KBO 36.92062640 +/- 0.0030
# Hcoef: 5.26
The following table shows the complete astrometric record for 06HJ123. 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 (06HJ123) followed by the observatory code and reference code for the source of the astrometry.
2006 04 27.24731 14 48 28.74 -15 48 37.2 20.2R 06HJ123 807 Cr3950 2006 04 27.32494 14 48 28.36 -15 48 35.2 06HJ123 807 Cr3950 2006 04 28.16975 14 48 23.97 -15 48 13.0 06HJ123 807 Cr3950 2006 06 20.01458 14 44 16.07 -15 26 47.7 21.5R 06HJ123 304 Cr4858 2006 06 20.10878 14 44 15.74 -15 26 45.9 06HJ123 304 Cr4858 2006 08 21.03762 14 43 44.96 -15 21 40.4 20.7R 06HJ123 807 Cs2782 2006 08 22.03282 14 43 47.60 -15 21 49.7 06HJ123 807 Cs2782 2006 08 23.03521 14 43 50.33 -15 21 59.6 06HJ123 807 Cs2782 2007 04 21.17386 14 55 29.06 -15 58 46.2 20.5R 06HJ123 807 Cv1549 2007 04 22.25593 14 55 23.57 -15 58 18.2 06HJ123 807 Cv1549 2007 04 22.32272 14 55 23.22 -15 58 16.4 06HJ123 807 Cv1549 2007 05 16.29834 14 53 17.28 -15 47 44.8 06HJ123 695 Cu9001 2007 05 17.29002 14 53 12.09 -15 47 18.8 06HJ123 695 Cu9001 2007 05 17.37827 14 53 11.62 -15 47 16.4 06HJ123 695 Cu9001
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 -0.32 0.00 0.08 2 0.0002 -5.83 0.12 0.29 0.12 3 0.0025 -72.92 0.17 2.81 -0.25 4 0.1472 -3874.68 -0.11 164.66 -0.21 5 0.1475 -3879.77 -0.20 164.95 -0.14 6 0.3170 -4396.25 0.07 322.84 0.09 7 0.3197 -4357.02 0.25 325.44 0.26 8 0.3225 -4316.37 0.08 327.85 0.23 9 0.9827 5980.18 0.04 1182.63 -0.32 10 0.9856 5896.24 0.20 1186.71 -0.11 11 0.9858 5890.88 0.13 1186.99 -0.06 12 1.0515 3967.82 0.08 1267.67 0.03 13 1.0542 3888.56 -0.22 1270.85 0.12 14 1.0544 3881.37 -0.29 1271.18 0.20
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.
06HJ123 quality flag:2 Type: 3:2E CENTAURR CENTAURR Type: 6:4II axisobj 39.188 39.591 38.812 ecceobj 0.302 0.317 0.287 incobj 12.496 12.496 12.497 qmin 26.785 25.856 27.640 qmax 52.618 54.711 52.176 amean 39.454 39.573 38.980 amin 39.113 37.866 38.238 amax 39.895 40.674 40.154 emean 0.261 0.327 0.267 emin 0.183 0.301 0.230 emax 0.320 0.348 0.300 imean 15.510 11.907 14.433 imin 12.243 10.823 13.112 imax 19.104 13.237 16.142 fracstop 1.000 0.079 0.014 cjmean 2.889 2.885 2.901 libcent 0 179.7 -180.0 -180.0 libamp 0 16.1 -180.0 -180.0 libcent 1 172.6 -180.0 -180.0 libamp 1 146.5 -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 91.6 205.3 124.4 kozaiamp 66.8 92.7 23.3