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: 06HQ122 # Created Fri May 2 02:36:57 2008 # Orbit generated from Bernstein formalism # Fitting 17 observations of 18 # Arc: 1.94y # First observation: 2006/04/26 # Last observation: 2008/04/05 Preliminary a, adot, b, bdot, g, gdot: -0.000042 0.032234 -0.000016 0.012750 0.026655 0.000000 # Chi-squared of fit: 21.49 DOF: 28 RMS: 0.20 # Min/Max residuals: -0.53 0.33 # Exact a, adot, b, bdot, g, gdot: 1.804744E-05 3.234308E-02 5.896176E-06 1.279086E-02 2.710809E-02 2.123935E-03 # Covariance matrix: 3.2019E-13 -1.8229E-13 -4.7858E-15 1.6825E-14 3.7827E-13 7.2039E-13 -1.8229E-13 1.0847E-12 -6.1285E-14 3.6177E-13 5.2616E-13 1.6665E-11 -4.7858E-15 -6.1285E-14 1.9364E-13 -1.7275E-13 -5.9496E-14 -1.2463E-12 1.6825E-14 3.6177E-13 -1.7275E-13 3.6603E-13 3.1595E-13 7.2323E-12 3.7827E-13 5.2616E-13 -5.9496E-14 3.1595E-13 1.5513E-12 1.4386E-11 7.2039E-13 1.6665E-11 -1.2463E-12 7.2323E-12 1.4386E-11 3.3257E-10 # lat0 lon0 xBary yBary zBary JD0 -1.719200 -147.170802 -0.050505 -0.029898 -1.000024 2453851.694314 # Heliocentric elements and errors Epoch: 2453850.5000 = 2006/04/25 Mean Anomaly: 1.97438 +/- 0.016 Argument of Peri: 345.84516 +/- 0.079 Long of Asc Node: 217.13885 +/- 0.000 Inclination: 21.59926 +/- 0.001 Eccentricity: 0.59391182 +/- 0.0002 Semi-Major Axis: 92.82711471 +/- 0.0473 Time of Perihelion: 2452058.9094 +/- 14.5 Perihelion: 37.69599385 +/- 0.0272 Aphelion: 147.95823557 +/- 0.0778 Period (y) 894.3767 +/- 0.68 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -31.80027205 +/- 0.0014 Ecliptic Y -20.57835829 +/- 0.0009 Ecliptic Z -1.10650887 +/- 0.0001 Ecliptic XDOT 0.00156199 +/- 0.0000 Ecliptic YDOT -0.00288784 +/- 0.0000 Ecliptic ZDOT 0.00128480 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.89393743 +/- 0.0013 Geocenter to KBO 36.88935319 +/- 0.0017 # Hcoef: 6.27
The following table shows the complete astrometric record for 06HQ122. 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 (06HQ122) followed by the observatory code and reference code for the source of the astrometry.
2006 04 26.19356 14 00 03.92 -14 04 05.8 20.7R 06HQ122 807 Cr3609 2006 04 26.27932 14 00 03.50 -14 04 03.1 06HQ122 807 Cr3609 2006 05 01.34734 13 59 39.24 -14 01 13.5 22.0R 06HQ122 695 Cr3609 2006 05 02.26509 13 59 34.89 -14 00 42.8 06HQ122 695 Cr3609 2006 05 02.38667 13 59 34.30 -14 00 38.6 06HQ122 695 Cr3609 2006 05 27.22343 13 57 47.20 -13 47 27.8 21.9R 06HQ122 688 Cr3609 2006 05 27.30168 13 57 46.83 -13 47 25.4 06HQ122 688 Cr3609 2006 07 27.99722 13 56 32.35 -13 30 33.5 22.1R 06HQ122 304 Cr5556 2006 07 28.10387 13 56 32.52 -13 30 33.3 06HQ122 304 Cr5556 2007 05 08.16212 14 07 20.61 -13 54 19.3 21.9R 06HQ122 304 Cu9001 2007 05 08.22296 14 07 20.32 -13 54 17.4 06HQ122 304 Cu9001 2007 05 12.25318 14 07 01.78 -13 52 08.0 21.8R 06HQ122 688 Cv0163 2007 05 12.31672 14 07 01.50 -13 52 06.5 06HQ122 688 Cv0163 2007 05 16.28954 14 06 43.71 -13 50 00.2 06HQ122 695 Cu9001 2007 05 17.28245 14 06 39.37 -13 49 29.3 06HQ122 695 Cu9001 2007 05 17.37105 14 06 38.99 -13 49 26.7 06HQ122 695 Cu9001 2008 04 05.33138 14 18 01.41 -14 06 52.5 21.6R 06HQ122 688 Cy5780 2008 04 05.42486 14 18 00.96 -14 06 49.7 06HQ122 688 Cy5780
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 0.17 0.00 0.32 2 0.0002 -6.67 0.23 0.43 0.15 3 0.0141 -396.52 0.02 37.91 0.08 4 0.0166 -466.53 -0.06 44.88 0.05 5 0.0170 -476.04 -0.17 45.86 0.14 6 0.0850 -2212.86 ( 0.64) 248.34 ( 0.01) 7 0.0852 -2218.75 -0.38 248.72 -0.26 8 0.2541 -3588.62 0.10 820.49 -0.11 9 0.2544 -3586.37 -0.02 821.54 -0.05 10 1.0321 5777.09 -0.12 2719.47 -0.18 11 1.0323 5772.47 -0.11 2719.83 -0.25 12 1.0433 5474.42 -0.04 2750.48 -0.10 13 1.0435 5470.08 0.33 2750.51 -0.53 14 1.0543 5183.34 -0.13 2781.82 0.13 15 1.0571 5113.35 0.03 2789.53 0.12 16 1.0573 5107.26 0.27 2790.10 0.03 17 1.9443 14851.11 0.15 5113.83 0.28 18 1.9445 14843.97 -0.26 5114.33 0.16
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.
06HQ122 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 89.799 89.799 89.799 ecceobj 0.580 0.580 0.580 incobj 21.695 21.695 21.695 qmin 35.796 35.813 35.788 qmax 150.100 149.268 149.600 amean 91.060 90.896 91.001 amin 89.472 89.345 89.430 amax 93.386 93.166 93.245 emean 0.590 0.589 0.589 emin 0.575 0.574 0.574 emax 0.608 0.605 0.607 imean 21.579 21.667 21.717 imin 20.531 20.490 20.502 imax 22.633 22.698 22.636 fracstop 1.000 1.000 1.000 cjmean 2.941 2.941 2.940 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 127.9 131.6 128.7 kozaiamp 180.0 180.0 180.0