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: 13UU17 # Created Sat Apr 20 01:15:33 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 32 observations of 32 # Arc: 10.33y # First observation: 2004/09/20 # Last observation: 2015/01/18 # Chi-squared of fit: 39.17 DOF: 58 RMS: 0.20 # Min/Max residuals: -0.43 0.53 # Exact a, adot, b, bdot, g, gdot: 2.233906E-05 6.383275E-02 3.774503E-06 7.368724E-03 4.654979E-02 1.355024E-02 # Covariance matrix: 7.2515E-13 -1.8628E-13 1.6475E-14 -1.4169E-14 -4.8395E-14 -1.9033E-13 -1.8628E-13 1.2588E-13 -1.6306E-14 1.3920E-14 6.3939E-14 1.8712E-13 1.6475E-14 -1.6306E-14 6.0485E-13 -6.9253E-14 -8.9339E-15 -2.5927E-14 -1.4169E-14 1.3920E-14 -6.9253E-14 9.8736E-15 6.8881E-15 2.2186E-14 -4.8395E-14 6.3939E-14 -8.9339E-15 6.8881E-15 1.4943E-13 9.3592E-14 -1.9033E-13 1.8712E-13 -2.5927E-14 2.2186E-14 9.3592E-14 2.9817E-13 # lat0 lon0 xBary yBary zBary JD0 -5.658324 -11.662161 -0.156821 -0.098122 -0.991348 2453268.521134 # Heliocentric elements and errors Epoch: 2453268.5000 = 2004/09/20 Mean Anomaly: 46.61059 +/- 0.003 Argument of Peri: 248.57213 +/- 0.005 Long of Asc Node: 27.93347 +/- 0.000 Inclination: 8.52109 +/- 0.000 Eccentricity: 0.24814565 +/- 0.0000 Semi-Major Axis: 25.78823723 +/- 0.0009 Time of Perihelion: 2447075.3305 +/- 0.6 Perihelion: 19.38899827 +/- 0.0008 Aphelion: 32.18747619 +/- 0.0012 Period (y) 130.9606 +/- 0.01 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 21.93964451 +/- 0.0002 Ecliptic Y -4.36758122 +/- 0.0000 Ecliptic Z -2.11799894 +/- 0.0000 Ecliptic XDOT 0.00157582 +/- 0.0000 Ecliptic YDOT 0.00350083 +/- 0.0000 Ecliptic ZDOT 0.00035281 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 22.47009378 +/- 0.0002 Geocenter to KBO 21.48230096 +/- 0.0002 # Hcoef: 10.20
The following table shows the complete astrometric record for 13UU17. 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 (13UU17) followed by the observatory code and reference code for the source of the astrometry.
2004 09 20.020391 23 26 04.35 -09 48 55.6 13UU17 807 C~5PtS 2004 10 05.081498 23 24 08.01 -09 58 47.3 13UU17 807 C~5PtS 2010 11 02.249163 00 31 06.43 +00 07 44.8 13UU17 568 C~5PtS 2010 11 02.254529 00 31 06.38 +00 07 44.7 13UU17 568 C~5PtS 2010 11 02.259839 00 31 06.36 +00 07 44.5 13UU17 568 C~5PtS 2010 11 02.265141 00 31 06.33 +00 07 44.3 13UU17 568 C~5PtS 2010 12 08.199492 00 28 39.49 -00 01 27.8 13UU17 568 C~5PtS 2010 12 08.210153 00 28 39.47 -00 01 27.7 13UU17 568 C~5PtS 2010 12 08.215461 00 28 39.46 -00 01 27.7 13UU17 568 C~5PtS 2013 08 02.53964 01 10 43.065 +05 35 41.08 24.6r 13UU17 568 C~2NKa 2013 08 02.58233 01 10 42.980 +05 35 40.63 24.4r 13UU17 568 C~2NKa 2013 08 30.46636 01 09 07.116 +05 26 11.64 24.1r 13UU17 568 C~2NKa 2013 08 30.47107 01 09 07.072 +05 26 11.70 24.5r 13UU17 568 C~2NKa 2013 08 30.47584 01 09 07.066 +05 26 10.93 24.1r 13UU17 568 C~2NKa 2013 08 31.45951 01 09 01.981 +05 25 41.62 24.0r 13UU17 568 C~2NKa 2013 08 31.52510 01 09 01.642 +05 25 39.50 24.6r 13UU17 568 C~2NKa 2013 09 04.43928 01 08 40.475 +05 23 35.79 24.1r 13UU17 568 C~2NKa 2013 09 04.51419 01 08 40.061 +05 23 33.46 24.1r 13UU17 568 C~2NKa 2013 10 06.42079 01 05 05.822 +05 03 08.15 24.0r 13UU17 568 C~2NKa 2013 10 31.25056 01 02 06.442 +04 46 48.06 24.8r 13UU17 568 C~2NKa 2013 10 31.29356 01 02 06.150 +04 46 46.69 24.0r 13UU17 568 C~2NKa 2013 10 31.33628 01 02 05.860 +04 46 45.30 24.0r 13UU17 568 C~2NKa 2013 11 01.27683 01 01 59.535 +04 46 11.81 24.0r 13UU17 568 C~2NKa 2013 11 01.40318 01 01 58.673 +04 46 07.34 24.5r 13UU17 568 C~2NKa 2013 11 05.45493 01 01 32.057 +04 43 48.40 24.1r 13UU17 568 C~2NKa 2013 11 29.31710 00 59 25.531 +04 33 36.56 23.9r 13UU17 568 C~2NKa 2013 12 04.26738 00 59 07.395 +04 32 23.18 23.9r 13UU17 568 C~2NKb 2013 12 04.31956 00 59 07.228 +04 32 22.47 24.1r 13UU17 568 C~2NKb 2014 11 19.19777 01 09 58.819 +06 04 02.19 24.2r 13UU17 568 C~2NKb 2014 11 19.26507 01 09 58.459 +06 04 00.29 24.5r 13UU17 568 C~2NKb 2014 11 25.21441 01 09 27.988 +06 01 33.42 23.9r 13UU17 568 C~2NKb 2015 01 18.22533 01 08 27.519 +06 01 49.78 24.7r 13UU17 568 C~2NKb
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 -0.02 0.00 -0.29
2 0.0412 0.00 0.34 0.00 -0.23
3 6.1170 0.00 0.09 0.00 0.08
4 6.1170 0.00 -0.15 0.00 0.14
5 6.1170 0.00 0.05 0.00 0.10
6 6.1170 0.00 0.09 0.00 0.06
7 6.2154 0.00 -0.37 0.00 0.45
8 6.2154 0.00 -0.38 0.00 0.53
9 6.2155 0.00 -0.39 0.00 0.52
10 8.8666 0.00 0.05 0.00 -0.12
11 8.8667 0.00 -0.11 0.00 -0.16
12 8.9430 0.00 0.18 0.00 -0.00
13 8.9431 0.00 -0.11 0.00 0.20
14 8.9431 0.00 0.17 0.00 -0.43
15 8.9458 0.00 -0.09 0.00 -0.04
16 8.9459 0.00 0.08 0.00 -0.16
17 8.9567 0.00 -0.02 0.00 -0.15
18 8.9569 0.00 0.21 0.00 -0.04
19 9.0442 0.00 -0.06 0.00 -0.06
20 9.1122 0.00 -0.14 0.00 -0.29
21 9.1123 0.00 -0.07 0.00 -0.12
22 9.1124 0.00 0.00 0.00 0.01
23 9.1150 0.00 0.10 0.00 -0.05
24 9.1154 0.00 0.14 0.00 -0.06
25 9.1264 0.00 0.10 0.00 -0.08
26 9.1918 0.00 0.04 0.00 0.09
27 9.2053 0.00 -0.05 0.00 -0.10
28 9.2055 0.00 0.16 0.00 -0.15
29 10.1634 0.00 -0.15 0.00 0.02
30 10.1636 0.00 0.06 0.00 -0.08
31 10.1799 0.00 0.12 0.00 0.33
32 10.3277 0.00 0.11 0.00 0.03
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.
13UU17 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 25.997 25.997 25.997 ecceobj 0.251 0.251 0.251 incobj 8.498 8.498 8.498 qmin 18.678 18.659 18.976 qmax 32.831 33.841 32.904 amean 25.690 26.112 25.940 amin 24.418 25.648 25.649 amax 26.296 26.522 26.269 emean 0.241 0.264 0.246 emin 0.201 0.246 0.200 emax 0.266 0.287 0.266 imean 9.482 9.430 9.141 imin 8.355 8.355 8.355 imax 10.948 11.032 10.532 excite_mean 0.293 0.311 0.293 fracstop 0.008 0.005 0.006 cjmean 2.937 2.921 2.934 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 297.7 282.4 287.2 kozaiamp 178.9 32.6 39.2