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: 06HZ122 # Created Thu May 24 01:37:33 2012 # Orbit generated from Bernstein formalism # Fitting 9 observations of 10 # Arc: 1.21y # First observation: 2006/04/27 # Last observation: 2007/07/12 Preliminary a, adot, b, bdot, g, gdot: -0.000070 0.022845 -0.000019 0.013376 0.024988 0.000000 # Chi-squared of fit: 4.76 DOF: 12 RMS: 0.13 # Min/Max residuals: -0.21 0.29 # Exact a, adot, b, bdot, g, gdot: 1.494125E-05 2.319458E-02 7.870020E-06 1.340910E-02 2.542710E-02 -2.937478E-03 # Covariance matrix: 4.8005E-13 1.0724E-13 -3.8200E-14 3.9182E-13 5.5802E-13 2.3043E-11 1.0724E-13 2.0322E-12 -3.0104E-13 3.2527E-12 1.8820E-12 1.9093E-10 -3.8200E-14 -3.0104E-13 3.7909E-13 -1.4653E-12 -4.6796E-13 -6.9185E-11 3.9182E-13 3.2527E-12 -1.4653E-12 1.3662E-11 5.0632E-12 7.5638E-10 5.5802E-13 1.8820E-12 -4.6796E-13 5.0632E-12 2.8180E-12 2.9719E-10 2.3043E-11 1.9093E-10 -6.9185E-11 7.5638E-10 2.9719E-10 4.4381E-08 # lat0 lon0 xBary yBary zBary JD0 -1.862727 -120.069858 0.393885 -0.029836 -0.920877 2453852.781904 # Heliocentric elements and errors Epoch: 2453850.5000 = 2006/04/25 Mean Anomaly: 329.13174 +/- 1.158 Argument of Peri: 40.93918 +/- 1.967 Long of Asc Node: 242.51654 +/- 0.000 Inclination: 30.04071 +/- 0.004 Eccentricity: 0.18845194 +/- 0.0061 Semi-Major Axis: 47.34030943 +/- 0.1088 Time of Perihelion: 2464051.7797 +/- 381.1 Perihelion: 38.41893607 +/- 0.3033 Aphelion: 56.26168278 +/- 0.3177 Period (y) 325.7278 +/- 1.12 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -20.50068170 +/- 0.0013 Ecliptic Y -34.62037631 +/- 0.0022 Ecliptic Z -1.27804782 +/- 0.0001 Ecliptic XDOT 0.00230003 +/- 0.0000 Ecliptic YDOT -0.00102411 +/- 0.0000 Ecliptic ZDOT 0.00145331 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.25520851 +/- 0.0020 Geocenter to KBO 39.32811804 +/- 0.0026 # Hcoef: 7.42
The following table shows the complete astrometric record for 06HZ122. 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 (06HZ122) followed by the observatory code and reference code for the source of the astrometry.
2006 04 27.28115 15 49 16.74 -21 57 19.1 22.6R 06HZ122 807 Cr3609 2006 04 28.12384 15 49 12.75 -21 57 01.6 06HZ122 807 Cr3609 2006 04 28.19093 15 49 12.44 -21 56 59.9 06HZ122 807 Cr3609 2006 06 20.04613 15 44 48.91 -21 36 21.5 23.5R 06HZ122 304 Cr4858 2006 06 20.13175 15 44 48.53 -21 36 19.6 06HZ122 304 Cr4858 2006 08 21.10814 15 42 51.67 -21 19 56.7 22.8R 06HZ122 807 Cs2782 2006 08 22.10304 15 42 52.79 -21 19 50.1 06HZ122 807 Cs2782 2006 08 23.10562 15 42 54.00 -21 19 43.5 06HZ122 807 Cs2782 2007 07 12.17350 15 49 45.229 -21 01 12.64 23.8R 06HZ122 304 2007 07 12.22219 15 49 45.086 -21 01 11.76 06HZ122 304
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 -0.11 0.00 0.10 2 0.0023 -57.97 -0.06 5.16 -0.20 3 0.0025 -62.55 0.07 5.89 0.13 4 0.1472 -3915.72 0.12 412.39 -0.15 5 0.1474 -3921.31 0.12 413.07 -0.21 6 0.3171 -5732.02 -0.10 1006.82 0.11 7 0.3198 -5718.25 -0.06 1016.78 0.29 8 0.3226 -5703.25 ( -0.36) 1027.01 ( 0.68) 9 1.2071 -333.83 -0.02 3373.69 -0.03 10 1.2072 -335.98 0.03 3374.12 -0.03
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.
06HZ122 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.777 47.123 46.500 ecceobj 0.183 0.202 0.165 incobj 30.184 30.175 30.193 qmin 37.808 36.685 38.408 qmax 56.462 58.510 55.280 amean 47.097 47.490 46.818 amin 47.055 47.394 46.786 amax 47.176 47.704 46.874 emean 0.188 0.208 0.171 emin 0.177 0.190 0.161 emax 0.198 0.229 0.180 imean 31.248 31.222 31.262 imin 31.147 30.709 31.151 imax 31.386 31.570 31.456 excite_mean 0.552 0.559 0.546 fracstop 1.000 1.000 1.000 cjmean 2.740 2.735 2.743 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 186.9 168.9 180.8 kozaiamp 180.0 180.0 179.9