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: 03WN193 # Created Fri Nov 22 02:08:32 2024 # Orbit generated from Bernstein formalism # Fitting 12 observations of 12 # Arc: 41.95d # First observation: 2003/11/17 # Last observation: 2003/12/29 Preliminary a, adot, b, bdot, g, gdot: -0.000010 0.049995 0.000015 -0.006233 0.035665 0.000000 # Chi-squared of fit: 1.87 DOF: 18 RMS: 0.07 # Min/Max residuals: -0.13 0.14 # Exact a, adot, b, bdot, g, gdot: 2.007382E-05 4.521114E-02 -2.272472E-06 -4.450621E-03 3.501029E-02 -2.642632E-04 # Covariance matrix: 7.3468E-13 1.1094E-11 -4.0404E-14 -4.1435E-12 7.2611E-12 1.3008E-09 1.1094E-11 2.6915E-08 6.2924E-11 -9.7455E-09 4.3666E-09 -5.3498E-07 -4.0404E-14 6.2924E-11 6.1150E-13 -2.7930E-11 8.9487E-12 -1.6957E-09 -4.1435E-12 -9.7455E-09 -2.7930E-11 3.6146E-09 -1.5589E-09 2.0320E-07 7.2611E-12 4.3666E-09 8.9487E-12 -1.5589E-09 7.8837E-10 -6.0163E-08 1.3008E-09 -5.3498E-07 -1.6957E-09 2.0320E-07 -6.0163E-08 1.9887E-05 # lat0 lon0 xBary yBary zBary JD0 -21.644066 32.765125 -0.359333 -0.339444 -0.855672 2452960.682033 # Heliocentric elements and errors Epoch: 2452960.5000 = 2003/11/17 Mean Anomaly: 0.56800 +/- 16.061 Argument of Peri: 255.25379 +/- 27.934 Long of Asc Node: 138.28300 +/- 0.122 Inclination: 21.63269 +/- 0.011 Eccentricity: 0.25327930 +/- 0.0071 Semi-Major Axis: 39.40034868 +/- 0.4081 Time of Perihelion: 2452817.9751 +/- 4030.0 Perihelion: 29.42105593 +/- 0.4138 Aphelion: 49.37964142 +/- 0.5830 Period (y) 247.3195 +/- 3.84 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 22.90112029 +/- 0.0179 Ecliptic Y 15.17224632 +/- 0.0115 Ecliptic Z -10.53527605 +/- 0.0085 Ecliptic XDOT -0.00204206 +/- 0.0003 Ecliptic YDOT 0.00288703 +/- 0.0002 Ecliptic ZDOT -0.00031573 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 29.42193757 +/- 0.0154 Geocenter to KBO 28.56302988 +/- 0.0229 # Hcoef: 8.48
The following table shows the complete astrometric record for 03WN193. 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 (03WN193) followed by the observatory code and reference code for the source of the astrometry.
2003 11 17.18129 02 31 33.59 -07 56 59.5 22.6I 03WN193 807 Cv6182 2003 11 21.16380 02 31 09.64 -07 57 57.4 22.7R 03WN193 807 Cv6182 2003 11 21.18404 02 31 09.52 -07 57 57.7 22.4I 03WN193 807 Cv6182 2003 11 25.17863 02 30 46.23 -07 58 39.3 22.6I 03WN193 807 Cv6182 2003 12 17.13274 02 28 58.27 -07 57 29.4 22.9R 03WN193 807 Cv6182 2003 12 17.14800 02 28 58.22 -07 57 29.2 22.5I 03WN193 807 Cv6182 2003 12 21.14384 02 28 43.26 -07 56 22.2 22.6I 03WN193 807 Cv6182 2003 12 23.15342 02 28 36.40 -07 55 42.3 23.0R 03WN193 807 Cv6182 2003 12 23.16899 02 28 36.34 -07 55 42.0 22.4I 03WN193 807 Cv6182 2003 12 25.14399 02 28 30.04 -07 54 58.7 22.8R 03WN193 807 Cv6182 2003 12 29.12185 02 28 18.71 -07 53 20.2 23.0R 03WN193 807 Cv6182 2003 12 29.13389 02 28 18.68 -07 53 19.6 22.7I 03WN193 807 Cv6182
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 0.07 0.00 0.05
2 0.0109 -354.45 -0.01 65.62 -0.02
3 0.0110 -356.23 0.00 65.94 -0.07
4 0.0219 -695.95 -0.10 143.51 0.05
5 0.0820 -2182.58 -0.08 749.47 0.03
6 0.0820 -2183.21 0.08 749.91 -0.05
7 0.0930 -2370.02 -0.03 887.74 -0.01
8 0.0985 -2452.62 0.11 959.58 -0.04
9 0.0985 -2453.35 0.00 960.16 -0.03
10 0.1039 -2526.97 0.08 1032.40 0.06
11 0.1148 -2652.46 -0.13 1181.75 -0.10
12 0.1149 -2652.68 -0.00 1182.47 0.14
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.
03WN193 quality flag:1 Type: 3:2E CENTAURR CENTAURR Type: 6:4II axisobj 39.857 47.837 39.286 ecceobj 0.262 0.458 0.251 incobj 21.614 21.593 21.593 qmin 27.494 25.660 28.701 qmax 51.832 70.900 49.390 amean 39.454 47.886 38.805 amin 39.100 46.993 37.962 amax 39.907 48.592 40.083 emean 0.257 0.457 0.241 emin 0.194 0.447 0.192 emax 0.302 0.466 0.257 imean 19.702 20.168 20.001 imin 17.636 20.031 19.573 imax 21.539 20.282 21.172 excite_mean 0.425 0.573 0.419 fracstop 1.000 0.002 0.039 cjmean 2.845 2.740 2.850 libcent 0 179.1 -180.0 -180.0 libamp 0 27.7 -180.0 -180.0 libcent 1 181.1 -180.0 -180.0 libamp 1 93.7 -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 270.9 309.8 289.2 kozaiamp 32.6 1.6 49.3