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: 02CZ248 # Created Thu May 24 01:37:10 2012 # Orbit generated from Bernstein formalism # Fitting 21 observations of 22 # Arc: 5.02y # First observation: 2002/02/06 # Last observation: 2007/02/15 Preliminary a, adot, b, bdot, g, gdot: -0.000036 0.033536 0.000025 0.003196 0.027325 0.000000 # Chi-squared of fit: 18.18 DOF: 36 RMS: 0.16 # Min/Max residuals: -0.43 0.22 # Exact a, adot, b, bdot, g, gdot: 1.878938E-05 3.459773E-02 1.091422E-06 3.302343E-03 2.910122E-02 7.446939E-03 # Covariance matrix: 3.6909E-13 -1.4926E-13 2.7646E-15 -6.4479E-15 3.1884E-14 -4.1905E-13 -1.4926E-13 3.2781E-13 -1.3003E-14 3.0163E-14 3.4796E-13 1.9507E-12 2.7646E-15 -1.3003E-14 3.2431E-13 -7.9149E-14 -1.6072E-14 -8.3950E-14 -6.4479E-15 3.0163E-14 -7.9149E-14 2.7198E-14 3.7143E-14 1.9469E-13 3.1884E-14 3.4796E-13 -1.6072E-14 3.7143E-14 8.5183E-13 2.3938E-12 -4.1905E-13 1.9507E-12 -8.3950E-14 1.9469E-13 2.3938E-12 1.2588E-11 # lat0 lon0 xBary yBary zBary JD0 -0.364243 131.309303 -0.105178 -0.006290 -0.977619 2452311.671653 # Heliocentric elements and errors Epoch: 2452310.5000 = 2002/02/05 Mean Anomaly: 18.90544 +/- 0.007 Argument of Peri: 311.38133 +/- 0.018 Long of Asc Node: 135.18098 +/- 0.000 Inclination: 5.45896 +/- 0.000 Eccentricity: 0.39626930 +/- 0.0001 Semi-Major Axis: 53.69791421 +/- 0.0085 Time of Perihelion: 2444762.7256 +/- 2.3 Perihelion: 32.41907943 +/- 0.0069 Aphelion: 74.97674899 +/- 0.0127 Period (y) 393.4996 +/- 0.09 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -23.40687364 +/- 0.0007 Ecliptic Y 26.48142566 +/- 0.0008 Ecliptic Z -0.21841215 +/- 0.0000 Ecliptic XDOT -0.00291727 +/- 0.0000 Ecliptic YDOT -0.00162162 +/- 0.0000 Ecliptic ZDOT 0.00030644 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.34395765 +/- 0.0008 Geocenter to KBO 34.36281823 +/- 0.0011 # Hcoef: 8.27
The following table shows the complete astrometric record for 02CZ248. 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 (02CZ248) followed by the observatory code and reference code for the source of the astrometry.
2002 02 06.17091 08 54 38.84 +17 02 05.7 22.7R 02CZ248 695 Cf2784 2002 02 06.26085 08 54 38.31 +17 02 08.1 02CZ248 695 Cf2784 2002 02 07.19196 08 54 33.08 +17 02 30.8 02CZ248 695 Cf2784 2002 03 08.33434 08 52 04.78 +17 13 37.8 22.6R 02CZ248 568 Cf2784 2002 03 08.41149 08 52 04.39 +17 13 39.2 02CZ248 568 Cf2784 2005 02 10.31064 09 18 10.53 +15 54 56.4 23.9g 02CZ248 568 C~0Wz6 2005 02 10.39362 09 18 10.07 +15 54 58.6 23.9g 02CZ248 568 C~0Wz6 2005 02 10.43316 09 18 09.85 +15 54 59.6 24.1g 02CZ248 568 C~0Wz6 2005 04 12.25869 09 14 09.04 +16 14 52.8 23.9i 02CZ248 568 C~0Wz6 2005 04 12.33944 09 14 08.92 +16 14 53.5 24.5i 02CZ248 568 C~0Wz6 2005 04 12.36705 09 14 08.87 +16 14 53.7 24.0i 02CZ248 568 C~0Wz6 2006 02 03.47935 09 26 28.57 +15 27 19.1 02CZ248 568 C75551 2006 02 03.47936 09 26 28.56 +15 27 18.8 23.4r 02CZ248 568 C~0D42 2006 02 06.33077 09 26 13.16 +15 28 37.0 23.0r 02CZ248 568 C75551 2006 02 06.37156 09 26 12.95 +15 28 38.6 22.8r 02CZ248 568 C75551 2006 02 06.40970 09 26 12.73 +15 28 39.5 23.4r 02CZ248 568 C75551 2006 11 23.53862 09 37 48.70 +14 40 30.9 02CZ248 695 C~0Wz6 2006 11 25.48772 09 37 48.73 +14 40 36.2 02CZ248 695 C~0Wz6 2007 02 14.48383 09 33 00.64 +15 07 21.4 23.3r 02CZ248 568 C~0Wz6 2007 02 14.51775 09 33 00.45 +15 07 22.2 23.5r 02CZ248 568 C~0Wz6 2007 02 14.55049 09 33 00.27 +15 07 23.2 23.6r 02CZ248 568 C~0Wz6 2007 02 15.49488 09 32 55.24 +15 07 49.3 23.3r 02CZ248 568 C~0Wz6
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 0.00 0.00 0.14 2 0.0002 -7.97 -0.25 0.22 0.20 3 0.0028 -86.32 0.07 1.45 -0.37 4 0.0826 -2313.53 ( 0.88) 62.81 ( 0.15) 5 0.0828 -2319.29 0.17 62.64 -0.16 6 3.0120 20672.76 0.17 2012.85 0.10 7 3.0122 20665.70 0.20 2012.94 0.06 8 3.0124 20662.34 0.22 2012.93 0.00 9 3.1789 16962.68 -0.15 2107.65 0.14 10 3.1791 16960.81 -0.08 2107.81 0.22 11 3.1792 16960.06 -0.17 2107.78 0.18 12 3.9926 28131.01 -0.23 2654.74 0.16 13 3.9926 28130.96 -0.27 2654.41 -0.17 14 4.0004 27890.68 0.04 2659.16 -0.43 15 4.0005 27887.23 0.10 2659.74 0.09 16 4.0007 27883.87 0.01 2659.60 -0.11 17 4.7950 38635.42 -0.09 3142.03 0.01 18 4.8003 38634.07 -0.08 3147.27 0.22 19 5.0221 34024.54 0.10 3321.46 0.02 20 5.0222 34021.60 0.07 3321.34 -0.14 21 5.0223 34018.73 0.00 3321.45 -0.06 22 5.0248 33939.27 0.15 3322.87 -0.11
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.
02CZ248 quality flag:3 Type: 7:3EEEE 7:3EEEE 7:3EEEE axisobj 53.279 53.304 53.253 ecceobj 0.393 0.393 0.393 incobj 5.470 5.470 5.470 qmin 32.332 32.350 32.322 qmax 74.074 74.118 74.032 amean 52.967 52.968 52.967 amin 52.771 52.744 52.797 amax 53.212 53.239 53.186 emean 0.387 0.387 0.387 emin 0.382 0.382 0.383 emax 0.392 0.392 0.392 imean 4.093 4.112 4.048 imin 3.897 3.863 3.798 imax 4.418 4.391 4.345 excite_mean 0.393 0.393 0.393 fracstop 1.000 1.000 1.000 cjmean 3.008 3.008 3.008 libcent 0 180.0 180.0 179.8 libamp 0 83.0 97.5 72.6 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 187.2 198.7 179.8 kozaiamp 180.0 180.0 180.0