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: 143751 # Created Sun Dec 22 02:06:57 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 21 observations of 21 # Arc: 16.01y # First observation: 2003/10/24 # Last observation: 2019/10/26 # Chi-squared of fit: 26.53 DOF: 36 RMS: 0.20 # Min/Max residuals: -0.35 0.46 # Exact a, adot, b, bdot, g, gdot: 2.040879E-05 4.067293E-02 1.815605E-06 5.286908E-03 3.272538E-02 -5.033325E-04 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 -1.925882 14.684361 -0.264217 -0.032234 -0.959650 2452936.708093 # Heliocentric elements and errors Epoch: 2452936.5000 = 2003/10/24 Mean Anomaly: 359.09227 +/- 0.000 Argument of Peri: 347.41836 +/- 0.000 Long of Asc Node: 29.19837 +/- 0.000 Inclination: 7.66121 +/- 0.000 Eccentricity: 0.25095661 +/- 0.0000 Semi-Major Axis: 42.07178435 +/- 0.0000 Time of Perihelion: 2453187.8272 +/- 0.0 Perihelion: 31.51359207 +/- 0.0000 Aphelion: 52.62997663 +/- 0.0000 Period (y) 272.8944 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.40111055 +/- 0.0000 Ecliptic Y 8.24458117 +/- 0.0000 Ecliptic Z -1.02685832 +/- 0.0000 Ecliptic XDOT -0.00089363 +/- 0.0000 Ecliptic YDOT 0.00327867 +/- 0.0000 Ecliptic ZDOT 0.00044364 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 31.51595290 +/- 0.0000 Geocenter to KBO 30.55737318 +/- 0.0000 # Hcoef: 8.42
The following table shows the complete astrometric record for 143751. 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 (143751) followed by the observatory code and reference code for the source of the astrometry.
2003 10 24.20735 00 57 03.73 +04 00 38.7 22.7R 143751 695 Cj5825 2003 10 24.30645 00 57 03.18 +04 00 35.8 143751 695 Cj5825 2003 11 20.11762 00 54 52.50 +03 49 19.6 23.2R 143751 695 Cj5825 2003 11 20.20247 00 54 52.16 +03 49 18.0 143751 695 Cj5825 2004 10 17.17365 01 05 49.15 +05 14 25.5 143751 304 Cn7960 2004 10 17.21834 01 05 48.90 +05 14 24.2 143751 304 Cn7960 2004 10 17.26304 01 05 48.64 +05 14 22.5 143751 304 Cn7960 2004 12 12.31346 01 01 48.31 +04 54 28.2 23.5R 143751 568 Cn7960 2004 12 13.32341 01 01 46.55 +04 54 23.4 23.7R 143751 568 Cn7960 2004 12 14.31742 01 01 44.91 +04 54 19.7 23.6R 143751 568 Cn7960 2005 08 08.32277 01 19 13.44 +06 53 46.1 22.1R 143751 807 Co3932 2005 08 09.34466 01 19 11.71 +06 53 36.2 143751 807 Co3932 2005 08 10.34127 01 19 09.94 +06 53 26.3 143751 807 Co3932 2005 09 28.302002 01 15 51.88 +06 34 45.8 143751 645 C~1SFt 2005 09 28.302832 01 15 51.88 +06 34 45.7 143751 645 C~1SFt 2005 09 28.305319 01 15 51.87 +06 34 45.7 143751 645 C~1SFt 2006 10 19.28833 01 22 04.17 +07 33 10.3 22.6R 143751 695 Ct0453 2006 10 20.19544 01 21 58.85 +07 32 41.5 143751 695 Ct0453 2006 10 20.32382 01 21 58.07 +07 32 37.3 143751 695 Ct0453 2019 10 26.337130 03 11 10.08 +20 47 12.7 23.6G 143751 705 C~3WUg 2019 10 26.449810 03 11 09.40 +20 47 10.8 23.5G 143751 705 C~3WUg
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 -0.20 0.00 0.08
2 0.0003 0.00 0.01 0.00 0.21
3 0.0737 0.00 0.11 0.00 0.14
4 0.0739 0.00 0.13 0.00 0.11
5 0.9828 0.00 -0.07 0.00 0.09
6 0.9829 0.00 0.16 0.00 0.23
7 0.9830 0.00 0.22 0.00 -0.03
8 1.1365 0.00 -0.23 0.00 -0.13
9 1.1393 0.00 -0.08 0.00 -0.30
10 1.1420 0.00 -0.31 0.00 -0.18
11 1.7909 0.00 -0.23 0.00 -0.03
12 1.7937 0.00 -0.35 0.00 -0.26
13 1.7964 0.00 -0.08 0.00 -0.09
14 1.9304 0.00 0.33 0.00 -0.11
15 1.9304 0.00 0.40 0.00 -0.19
16 1.9305 0.00 0.46 0.00 -0.11
17 2.9872 0.00 -0.23 0.00 0.25
18 2.9897 0.00 0.13 0.00 0.25
19 2.9901 0.00 -0.03 0.00 0.11
20 16.0058 0.00 -0.03 0.00 -0.11
21 16.0061 0.00 0.04 0.00 0.12
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.
143751 quality flag:3 Type: 5:3EE 5:3EE 5:3EE Type: 5:3II 5:3II 5:3II axisobj 42.628 42.628 42.628 ecceobj 0.261 0.261 0.261 incobj 7.635 7.635 7.635 qmin 31.127 31.127 31.127 qmax 54.134 54.137 54.132 amean 42.326 42.326 42.326 amin 41.869 41.870 41.870 amax 42.856 42.871 42.872 emean 0.250 0.250 0.250 emin 0.235 0.235 0.235 emax 0.264 0.264 0.264 imean 7.480 7.477 7.479 imin 7.058 7.059 7.058 imax 7.876 7.871 7.876 excite_mean 0.282 0.281 0.282 fracstop 1.000 1.000 1.000 cjmean 2.988 2.988 2.988 libcent 0 180.5 179.7 179.9 libamp 0 76.2 75.0 75.4 libcent 1 183.1 183.0 182.9 libamp 1 100.6 100.5 100.3 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 146.5 147.2 147.0 kozaiamp 180.0 180.0 180.0