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: 13CJ118 # Created Fri Nov 22 02:09:21 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 35 observations of 35 # Arc: 3.34y # First observation: 2011/12/16 # Last observation: 2015/04/19 # Chi-squared of fit: 42.60 DOF: 64 RMS: 0.20 # Min/Max residuals: -0.64 0.47 # Exact a, adot, b, bdot, g, gdot: 5.187155E-05 7.485354E-01 -5.805132E-06 -8.059882E-02 2.269593E-01 -3.199433E-02 # Covariance matrix: 1.9386E-09 -8.8040E-04 -1.7460E-10 8.0173E-05 1.4789E-12 3.2250E-03 -8.8040E-04 6.2902E+02 7.9448E-05 -5.7281E+01 -6.7728E-07 -2.3053E+03 -1.7460E-10 7.9448E-05 1.7184E-11 -7.2358E-06 -1.3329E-13 -2.9103E-04 8.0173E-05 -5.7281E+01 -7.2358E-06 5.2215E+00 6.1676E-08 2.0993E+02 1.4789E-12 -6.7728E-07 -1.3329E-13 6.1676E-08 1.1291E-15 2.4810E-06 3.2250E-03 -2.3053E+03 -2.9103E-04 2.0993E+02 2.4810E-06 8.4488E+03 # lat0 lon0 xBary yBary zBary JD0 10.469569 105.834330 0.362043 0.166017 -0.898271 2455912.027616 # Heliocentric elements and errors Epoch: 2455912.5000 = 2011/12/17 Mean Anomaly: 354.50888 +/- 0.013 Argument of Peri: 141.45207 +/- 0.000 Long of Asc Node: 338.52003 +/- 0.000 Inclination: 10.32576 +/- 0.000 Eccentricity: 0.49515690 +/- 0.4839 Semi-Major Axis: 10.35626013 +/- 0.0000 Time of Perihelion: 2456098.1785 +/- 0.4 Perihelion: 5.22828645 +/- 5.0115 Aphelion: 15.48423381 +/- 5.0115 Period (y) 33.3283 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -1.08007080 +/- 0.0000 Ecliptic Y 5.14712310 +/- 0.0000 Ecliptic Z 0.80059114 +/- 0.0000 Ecliptic XDOT -0.00863586 +/- 0.0000 Ecliptic YDOT -0.00265420 +/- 0.0003 Ecliptic ZDOT -0.00102614 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 5.31983362 +/- 0.0000 Geocenter to KBO 4.40612118 +/- 0.0000 # Hcoef: 14.83
The following table shows the complete astrometric record for 13CJ118. 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 (13CJ118) followed by the observatory code and reference code for the source of the astrometry.
2011 12 16.52685 07 14 32.293 +32 53 24.75 21.6G 13CJ118 F51 C~36ne 2011 12 16.55238 07 14 31.579 +32 53 25.87 22.8G 13CJ118 F51 C~36ne 2011 12 16.56481 07 14 31.244 +32 53 26.52 22.4G 13CJ118 F51 C~36ne 2013 01 21.53108 09 58 21.406 +16 15 32.24 22.5G 13CJ118 F51 C~36ne 2013 01 21.54331 09 58 21.117 +16 15 33.56 23.1G 13CJ118 F51 C~36ne 2013 02 09.37671 09 50 10.778 +16 37 30.98 21.6w 13CJ118 F51 C~0p7Z 2013 02 09.39165 09 50 10.348 +16 37 32.09 21.6w 13CJ118 F51 C~0p7Z 2013 02 09.40669 09 50 09.915 +16 37 33.08 21.7w 13CJ118 F51 C~0p7Z 2013 02 09.42180 09 50 09.485 +16 37 34.20 21.6w 13CJ118 F51 C~0p7Z 2013 02 11.96539 09 48 57.83 +16 40 27.8 21.0R 13CJ118 J04 C~0p7Z 2013 02 11.97090 09 48 57.66 +16 40 28.2 21.1R 13CJ118 J04 C~0p7Z 2013 02 11.97641 09 48 57.50 +16 40 28.7 21.1R 13CJ118 J04 C~0p7Z 2013 02 12.97949 09 48 29.18 +16 41 35.4 20.9R 13CJ118 J04 C~0p7Z 2013 02 12.98389 09 48 29.06 +16 41 36.3 20.9R 13CJ118 J04 C~0p7Z 2013 02 12.98828 09 48 28.91 +16 41 36.4 20.8R 13CJ118 J04 C~0p7Z 2013 02 13.274629 09 48 20.871 +16 41 55.30 21.3R 13CJ118 568 C~0p7Z 2013 02 13.275909 09 48 20.835 +16 41 55.41 21.6R 13CJ118 568 C~0p7Z 2013 02 13.277159 09 48 20.801 +16 41 55.59 21.3R 13CJ118 568 C~0p7Z 2013 02 14.96884 09 47 32.98 +16 43 44.8 21.3R 13CJ118 J04 C~0p7Z 2013 02 14.97325 09 47 32.85 +16 43 45.4 21.2R 13CJ118 J04 C~0p7Z 2013 02 14.97765 09 47 32.74 +16 43 46.0 21.6R 13CJ118 J04 C~0p7Z 2014 02 28.45783 11 49 24.566 -02 48 30.38 22.3G 13CJ118 F51 C~36ne 2014 02 28.46989 11 49 24.295 -02 48 29.18 23.0G 13CJ118 F51 C~36ne 2014 02 28.48197 11 49 24.003 -02 48 28.57 22.8G 13CJ118 F51 C~36ne 2014 02 28.49406 11 49 23.710 -02 48 27.34 22.8G 13CJ118 F51 C~36ne 2014 03 24.41500 11 39 39.607 -02 10 01.75 22.5G 13CJ118 F51 C~36ne 2014 03 24.42728 11 39 39.326 -02 10 00.09 22.5G 13CJ118 F51 C~36ne 2014 04 28.31429 11 28 47.841 -01 19 08.67 22.8G 13CJ118 F51 C~36ne 2014 04 28.33886 11 28 47.523 -01 19 07.20 22.7G 13CJ118 F51 C~36ne 2014 04 28.35115 11 28 47.372 -01 19 06.83 22.1G 13CJ118 F51 C~36ne 2015 04 19.11848 13 01 17.36 -15 21 50.4 23.7 13CJ118 W84 C~5VVe 2015 04 19.12165 13 01 17.29 -15 21 50.1 13CJ118 W84 C~5VVe 2015 04 19.12488 13 01 17.23 -15 21 49.6 13CJ118 W84 C~5VVe 2015 04 19.12812 13 01 17.15 -15 21 49.3 13CJ118 W84 C~5VVe 2015 04 19.13131 13 01 17.08 -15 21 48.9 13CJ118 W84 C~5VVe
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 0.03
2 0.0001 0.00 -0.13 0.00 -0.15
3 0.0001 0.00 -0.04 0.00 -0.13
4 1.1006 0.00 -0.19 0.00 -0.33
5 1.1007 0.00 -0.20 0.00 0.21
6 1.1522 0.00 -0.04 0.00 0.06
7 1.1523 0.00 -0.03 0.00 0.11
8 1.1523 0.00 -0.01 0.00 0.04
9 1.1523 0.00 0.10 0.00 0.09
10 1.1593 0.00 0.22 0.00 -0.09
11 1.1593 0.00 0.06 0.00 -0.07
12 1.1593 0.00 0.05 0.00 0.05
13 1.1621 0.00 0.36 0.00 -0.24
14 1.1621 0.00 0.47 0.00 0.36
15 1.1621 0.00 0.12 0.00 0.17
16 1.1629 0.00 -0.05 0.00 0.08
17 1.1629 0.00 -0.04 0.00 0.11
18 1.1629 0.00 -0.01 0.00 0.20
19 1.1675 0.00 -0.17 0.00 -0.28
20 1.1675 0.00 -0.21 0.00 0.03
21 1.1676 0.00 0.04 0.00 0.34
22 2.2038 0.00 -0.24 0.00 -0.24
23 2.2038 0.00 -0.01 0.00 0.03
24 2.2038 0.00 -0.09 0.00 -0.29
25 2.2039 0.00 -0.18 0.00 0.00
26 2.2694 0.00 -0.11 0.00 -0.64
27 2.2694 0.00 0.25 0.00 -0.28
28 2.3649 0.00 0.23 0.00 0.08
29 2.3650 0.00 -0.27 0.00 0.25
30 2.3650 0.00 -0.41 0.00 -0.02
31 3.3391 0.00 -0.04 0.00 0.12
32 3.3391 0.00 -0.01 0.00 0.05
33 3.3391 0.00 0.19 0.00 0.18
34 3.3391 0.00 0.08 0.00 0.10
35 3.3391 0.00 0.12 0.00 0.13
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.
13CJ118 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 10.328 10.328 10.328 ecceobj 0.492 0.492 0.492 incobj 10.315 10.315 10.315 qmin 5.238 4.628 5.243 qmax 15.413 21.245 15.413 amean 9.748 10.005 10.328 amin 9.168 8.942 10.328 amax 10.328 13.185 10.328 emean 0.460 0.482 0.492 emin 0.429 0.415 0.492 emax 0.492 0.611 0.492 imean 11.596 10.147 11.375 imin 11.375 7.937 11.375 imax 11.818 12.252 11.375 excite_mean 0.503 0.515 0.530 fracstop 0.000 0.002 0.000 cjmean 4.080 4.032 3.912 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 148.0 175.9 141.3 kozaiamp 6.7 49.2 0.0