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 Fri Nov 22 02:08:51 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 12 observations of 12 # Arc: 8.17y # First observation: 2006/04/27 # Last observation: 2014/06/28 # Chi-squared of fit: 17.32 DOF: 18 RMS: 0.21 # Min/Max residuals: -0.29 0.68 # Exact a, adot, b, bdot, g, gdot: 1.503614E-05 2.319484E-02 8.290600E-06 1.340817E-02 2.542722E-02 -2.994526E-03 # Covariance matrix: 4.6805E-13 4.3620E-15 -5.2611E-15 8.6672E-15 4.0219E-13 6.7946E-14 4.3620E-15 8.4359E-13 -1.6816E-13 5.3914E-13 4.4580E-13 4.6118E-12 -5.2611E-15 -1.6816E-13 2.1579E-13 -1.3507E-13 -8.9163E-14 -9.3462E-13 8.6672E-15 5.3914E-13 -1.3507E-13 3.6415E-13 2.7476E-13 2.9993E-12 4.0219E-13 4.4580E-13 -8.9163E-14 2.7476E-13 7.6175E-13 2.3419E-12 6.7946E-14 4.6118E-12 -9.3462E-13 2.9993E-12 2.3419E-12 2.5658E-11 # lat0 lon0 xBary yBary zBary JD0 -1.862727 -120.069858 0.393886 -0.029836 -0.920878 2453852.781904 # Heliocentric elements and errors Epoch: 2453852.5000 = 2006/04/27 Mean Anomaly: 328.85408 +/- 0.035 Argument of Peri: 41.47167 +/- 0.056 Long of Asc Node: 242.51667 +/- 0.000 Inclination: 30.03940 +/- 0.000 Eccentricity: 0.19009668 +/- 0.0001 Semi-Major Axis: 47.36756762 +/- 0.0070 Time of Perihelion: 2464154.4313 +/- 26.8 Perihelion: 38.36315023 +/- 0.0091 Aphelion: 56.37198500 +/- 0.0110 Period (y) 326.0092 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -20.50058805 +/- 0.0007 Ecliptic Y -34.62022196 +/- 0.0012 Ecliptic Z -1.27802540 +/- 0.0000 Ecliptic XDOT 0.00230312 +/- 0.0000 Ecliptic YDOT -0.00101881 +/- 0.0000 Ecliptic ZDOT 0.00145340 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.25510498 +/- 0.0011 Geocenter to KBO 39.32804581 +/- 0.0013 # Hcoef: 7.57
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 45.23 -21 01 12.6 23.8R 06HZ122 304 C~2i4J 2007 07 12.22219 15 49 45.09 -21 01 11.8 06HZ122 304 C~2i4J 2014 06 28.22971 16 34 26.57 -17 22 29.5 23.8R 06HZ122 G37 C~2i4J 2014 06 28.28731 16 34 26.26 -17 22 28.7 06HZ122 G37 C~2i4J
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 -0.13 0.00 0.04
2 0.0023 0.00 -0.15 0.00 -0.27
3 0.0025 0.00 0.07 0.00 0.03
4 0.1472 0.00 0.10 0.00 -0.24
5 0.1474 0.00 0.09 0.00 -0.29
6 0.3171 0.00 0.01 0.00 0.07
7 0.3198 0.00 0.10 0.00 0.23
8 0.3226 0.00 -0.12 0.00 0.68
9 1.2071 0.00 -0.07 0.00 -0.06
10 1.2072 0.00 0.03 0.00 -0.15
11 8.1696 0.00 0.30 0.00 0.02
12 8.1698 0.00 -0.29 0.00 -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.
06HZ122 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.804 46.804 46.804 ecceobj 0.184 0.184 0.184 incobj 30.183 30.183 30.183 qmin 37.324 37.315 37.319 qmax 57.455 57.374 57.373 amean 47.128 47.127 47.128 amin 46.734 46.721 46.734 amax 47.617 47.593 47.595 emean 0.190 0.190 0.190 emin 0.174 0.173 0.173 emax 0.207 0.206 0.206 imean 31.245 31.245 31.245 imin 31.055 31.049 31.054 imax 31.466 31.469 31.469 excite_mean 0.552 0.552 0.552 fracstop 1.000 1.000 1.000 cjmean 2.739 2.739 2.739 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 187.8 187.9 188.0 kozaiamp 180.0 179.9 180.0