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: 13UX17 # Created Fri Nov 22 02:09:47 2024 # Orbit generated from Bernstein formalism # Fitting 37 observations of 37 # Arc: 2.35y # First observation: 2013/08/02 # Last observation: 2015/12/07 Preliminary a, adot, b, bdot, g, gdot: -0.000141 0.019819 -0.000000 0.001016 0.022607 0.000000 # Chi-squared of fit: 16.52 DOF: 68 RMS: 0.12 # Min/Max residuals: -0.41 0.33 # Exact a, adot, b, bdot, g, gdot: 1.400154E-05 1.968494E-02 6.368256E-07 1.015349E-03 2.255370E-02 1.142076E-03 # Covariance matrix: 1.5552E-13 5.1179E-16 -6.7079E-16 5.8868E-15 1.3184E-13 3.3543E-12 5.1179E-16 2.1156E-13 -1.9946E-15 1.2102E-14 1.4046E-13 6.6902E-12 -6.7079E-16 -1.9946E-15 7.7727E-14 -6.4659E-14 -2.0197E-15 -1.4164E-13 5.8868E-15 1.2102E-14 -6.4659E-14 1.0936E-13 1.4399E-14 8.1871E-13 1.3184E-13 1.4046E-13 -2.0197E-15 1.4399E-14 2.4211E-13 8.0781E-12 3.3543E-12 6.6902E-12 -1.4164E-13 8.1871E-13 8.0781E-12 4.5034E-10 # lat0 lon0 xBary yBary zBary JD0 -0.736288 17.128605 0.936060 -0.005072 -0.396972 2456507.032638 # Heliocentric elements and errors Epoch: 2456500.5000 = 2013/07/27 Mean Anomaly: 163.38865 +/- 0.386 Argument of Peri: 178.81785 +/- 0.387 Long of Asc Node: 29.88185 +/- 0.004 Inclination: 3.02376 +/- 0.001 Eccentricity: 0.13521125 +/- 0.0002 Semi-Major Axis: 39.56925063 +/- 0.0030 Time of Perihelion: 2415238.0934 +/- 97.3 Perihelion: 34.21904282 +/- 0.0079 Aphelion: 44.91945845 +/- 0.0082 Period (y) 248.9115 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 43.02338302 +/- 0.0009 Ecliptic Y 12.28290655 +/- 0.0003 Ecliptic Z -0.56969469 +/- 0.0000 Ecliptic XDOT -0.00057602 +/- 0.0000 Ecliptic YDOT 0.00232409 +/- 0.0000 Ecliptic ZDOT 0.00012160 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.74601470 +/- 0.0009 Geocenter to KBO 44.33862590 +/- 0.0010 # Hcoef: 7.74
The following table shows the complete astrometric record for 13UX17. 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 (13UX17) followed by the observatory code and reference code for the source of the astrometry.
2013 08 02.53186 01 04 17.270 +06 02 50.96 24.6r 13UX17 568 C~2NKb 2013 08 02.57457 01 04 17.217 +06 02 50.48 24.6r 13UX17 568 C~2NKb 2013 08 30.44895 01 03 14.477 +05 56 16.14 24.1r 13UX17 568 C~2NKb 2013 08 31.45170 01 03 11.282 +05 55 56.41 24.6r 13UX17 568 C~2NKb 2013 08 31.51726 01 03 11.062 +05 55 55.21 13UX17 568 C~2NKb 2013 09 04.43153 01 02 58.106 +05 54 34.75 24.5r 13UX17 568 C~2NKb 2013 09 04.47439 01 02 57.960 +05 54 33.95 23.6r 13UX17 568 C~2NKb 2013 09 04.50640 01 02 57.834 +05 54 33.41 23.7r 13UX17 568 C~2NKb 2013 10 06.41277 01 00 50.387 +05 41 32.89 24.5r 13UX17 568 C~2NKb 2013 10 06.50014 01 00 50.024 +05 41 30.54 24.4r 13UX17 568 C~2NKb 2013 10 06.50554 01 00 49.990 +05 41 30.39 24.0r 13UX17 568 C~2NKb 2013 10 06.51103 01 00 49.955 +05 41 30.33 24.2r 13UX17 568 C~2NKb 2013 10 06.51584 01 00 49.932 +05 41 30.29 24.2r 13UX17 568 C~2NKb 2013 10 09.54274 01 00 36.822 +05 40 10.56 24.1r 13UX17 568 C~2NKb 2013 10 31.25446 00 59 05.255 +05 31 00.30 24.0r 13UX17 568 C~2NKb 2013 10 31.29744 00 59 05.074 +05 30 59.17 24.4r 13UX17 568 C~2NKb 2013 10 31.34016 00 59 04.913 +05 30 58.16 23.9r 13UX17 568 C~2NKb 2013 11 01.28119 00 59 01.207 +05 30 35.91 24.8r 13UX17 568 C~2NKb 2013 11 01.40856 00 59 00.677 +05 30 32.90 24.1r 13UX17 568 C~2NKb 2013 11 05.45881 00 58 45.051 +05 29 00.22 24.8r 13UX17 568 C~2NKb 2013 11 29.32101 00 57 29.700 +05 21 42.83 24.6r 13UX17 568 C~2NKb 2013 12 04.27126 00 57 18.554 +05 20 40.71 24.3r 13UX17 568 C~2NKb 2013 12 04.32344 00 57 18.467 +05 20 40.35 24.1r 13UX17 568 C~2NKb 2014 06 27.59003 01 08 12.961 +06 31 00.21 24.4r 13UX17 568 C~2NKb 2014 06 28.59510 01 08 14.676 +06 31 10.38 24.8r 13UX17 568 C~2NKb 2014 07 24.55310 01 08 30.780 +06 32 39.65 24.4r 13UX17 568 C~2NKb 2014 07 27.58380 01 08 29.083 +06 32 28.15 23.3r 13UX17 568 C~2NKb 2014 08 22.59325 01 07 45.686 +06 27 55.88 24.3r 13UX17 568 C~2NKb 2014 08 26.43852 01 07 35.228 +06 26 51.07 24.7u 13UX17 568 C~2NKb 2014 10 23.37959 01 03 47.485 +06 03 50.54 24.0r 13UX17 568 C~2NKb 2014 10 27.39496 01 03 30.670 +06 02 10.38 24.4r 13UX17 568 C~2NKb 2014 11 24.24776 01 01 50.822 +05 52 25.00 23.9r 13UX17 568 C~2NKb 2014 11 25.24396 01 01 48.009 +05 52 08.85 24.2r 13UX17 568 C~2NKb 2014 12 17.27453 01 01 03.814 +05 48 07.58 24.4r 13UX17 568 C~2NKb 2015 01 17.30307 01 01 09.285 +05 49 30.59 24.1r 13UX17 568 C~2NKb 2015 08 20.50656 01 11 58.800 +06 57 30.78 24.3r 13UX17 568 C~2NKb 2015 12 07.39423 01 05 25.678 +06 18 36.91 24.7w 13UX17 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 -0.04 0.00 0.02
2 0.0001 -0.91 -0.04 -0.14 -0.13
3 0.0764 -1016.54 0.12 -6.51 -0.11
4 0.0792 -1068.13 -0.01 -6.49 -0.03
5 0.0794 -1071.62 -0.04 -6.35 0.09
6 0.0901 -1281.01 -0.05 -6.69 -0.09
7 0.0902 -1283.33 0.04 -6.59 -0.02
8 0.0903 -1285.27 -0.10 -6.37 0.19
9 0.1776 -3341.37 -0.02 1.62 0.06
10 0.1779 -3347.28 0.27 1.53 -0.12
11 0.1779 -3347.81 0.13 1.58 -0.07
12 0.1779 -3348.31 0.01 1.73 0.07
13 0.1779 -3348.65 0.02 1.82 0.16
14 0.1862 -3560.00 0.33 3.29 -0.08
15 0.2456 -5034.11 -0.00 20.25 0.14
16 0.2458 -5037.04 -0.15 20.25 0.07
17 0.2459 -5039.65 0.02 20.24 0.00
18 0.2485 -5099.32 0.14 20.97 -0.16
19 0.2488 -5107.79 -0.13 21.23 -0.08
20 0.2599 -5358.96 -0.03 25.37 -0.09
21 0.3252 -6566.85 -0.00 54.59 0.08
22 0.3388 -6744.58 -0.41 61.35 -0.06
23 0.3389 -6745.92 0.03 61.52 0.01
24 0.9009 3893.24 -0.03 221.27 -0.07
25 0.9037 3920.75 0.01 220.95 -0.06
26 0.9747 4176.76 -0.02 212.21 0.10
27 0.9830 4148.99 -0.22 211.19 0.03
28 1.0542 3447.03 0.12 205.54 0.25
29 1.0648 3278.18 -0.15 204.96 0.09
30 1.2234 -387.74 0.17 224.93 0.03
31 1.2344 -657.80 -0.02 228.34 0.05
32 1.3107 -2258.14 0.10 258.03 -0.00
33 1.3134 -2303.11 0.14 259.20 -0.08
34 1.3737 -3004.82 -0.28 289.26 0.05
35 1.4586 -2897.56 0.00 334.61 -0.14
36 2.0478 7612.40 -0.00 415.72 -0.02
37 2.3460 1304.17 0.09 484.50 -0.06
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.
13UX17 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.746 39.756 39.736 ecceobj 0.131 0.131 0.131 incobj 3.016 3.016 3.016 qmin 33.220 33.237 33.254 qmax 46.221 46.259 46.253 amean 39.458 39.458 39.458 amin 39.021 39.017 39.032 amax 39.949 39.945 39.943 emean 0.139 0.139 0.139 emin 0.121 0.121 0.122 emax 0.158 0.158 0.159 imean 2.597 2.602 2.597 imin 1.887 1.886 1.904 imax 3.283 3.274 3.293 excite_mean 0.147 0.147 0.147 fracstop 1.000 1.000 1.000 cjmean 3.027 3.028 3.027 libcent 0 180.1 180.4 181.0 libamp 0 87.7 89.5 84.8 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 176.5 179.7 173.6 kozaiamp 180.0 179.9 180.0