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: 13UE17 # Created Thu Apr 25 01:15:22 2024 # Orbit generated from Bernstein formalism # Fitting 26 observations of 26 # Arc: 2.05y # First observation: 2013/08/02 # Last observation: 2015/08/20 Preliminary a, adot, b, bdot, g, gdot: -0.000243 0.023879 -0.000001 -0.000021 0.024120 0.000000 # Chi-squared of fit: 9.70 DOF: 46 RMS: 0.11 # Min/Max residuals: -0.20 0.25 # Exact a, adot, b, bdot, g, gdot: 1.551148E-05 2.372652E-02 4.984162E-07 -2.120373E-05 2.412922E-02 1.400287E-03 # Covariance matrix: 2.7368E-13 -4.3454E-14 8.9333E-16 -8.2341E-16 1.9146E-13 3.5847E-12 -4.3454E-14 3.6715E-13 7.0018E-16 -8.5389E-16 1.5525E-13 8.3296E-12 8.9333E-16 7.0018E-16 1.1837E-13 -1.1044E-13 1.2616E-15 3.5587E-14 -8.2341E-16 -8.5389E-16 -1.1044E-13 1.9555E-13 -1.2690E-15 -4.2712E-14 1.9146E-13 1.5525E-13 1.2616E-15 -1.2690E-15 2.7302E-13 7.8736E-12 3.5847E-12 8.3296E-12 3.5587E-14 -4.2712E-14 7.8736E-12 4.0518E-10 # lat0 lon0 xBary yBary zBary JD0 -0.720841 15.762786 0.926502 -0.005242 -0.418809 2456507.009328 # Heliocentric elements and errors Epoch: 2456500.5000 = 2013/07/27 Mean Anomaly: 47.43526 +/- 0.569 Argument of Peri: 213.26954 +/- 0.668 Long of Asc Node: 109.78214 +/- 0.085 Inclination: 0.71640 +/- 0.000 Eccentricity: 0.04548056 +/- 0.0007 Semi-Major Axis: 43.14929660 +/- 0.0044 Time of Perihelion: 2442859.1353 +/- 163.6 Perihelion: 41.18684231 +/- 0.0304 Aphelion: 45.11175090 +/- 0.0304 Period (y) 283.4450 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.53643345 +/- 0.0009 Ecliptic Y 10.48271012 +/- 0.0002 Ecliptic Z -0.52132465 +/- 0.0000 Ecliptic XDOT -0.00058470 +/- 0.0000 Ecliptic YDOT 0.00263325 +/- 0.0000 Ecliptic ZDOT -0.00000426 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.87315879 +/- 0.0008 Geocenter to KBO 41.44353595 +/- 0.0009 # Hcoef: 8.30
The following table shows the complete astrometric record for 13UE17. 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 (13UE17) followed by the observatory code and reference code for the source of the astrometry.
2013 08 02.50855 00 59 11.571 +05 32 17.05 24.9r 13UE17 568 C~2NKY 2013 08 02.55128 00 59 11.507 +05 32 16.59 24.3r 13UE17 568 C~2NKY 2013 09 04.40817 00 57 47.534 +05 23 04.86 24.6r 13UE17 568 C~2NKY 2013 10 06.38359 00 55 33.408 +05 08 56.37 24.3r 13UE17 568 C~2NKY 2013 10 06.44798 00 55 33.125 +05 08 54.55 24.2r 13UE17 568 C~2NKY 2013 10 06.45762 00 55 33.078 +05 08 54.15 24.5r 13UE17 568 C~2NKY 2013 10 06.46264 00 55 33.062 +05 08 53.91 24.1r 13UE17 568 C~2NKY 2013 10 31.23096 00 53 44.458 +04 57 39.88 24.7r 13UE17 568 C~2NKY 2013 10 31.27407 00 53 44.278 +04 57 38.52 24.2r 13UE17 568 C~2NKY 2013 10 31.31685 00 53 44.097 +04 57 37.48 24.3r 13UE17 568 C~2NKY 2013 11 01.25731 00 53 40.303 +04 57 14.02 24.1r 13UE17 568 C~2NKY 2013 11 01.37789 00 53 39.804 +04 57 11.02 24.3r 13UE17 568 C~2NKY 2013 11 05.38291 00 53 23.983 +04 55 34.12 24.6r 13UE17 568 C~2NKY 2013 11 29.22005 00 52 08.221 +04 47 56.78 24.6r 13UE17 568 C~2NKY 2013 12 04.24712 00 51 57.227 +04 46 52.57 24.3r 13UE17 568 C~2NKY 2013 12 04.29457 00 51 57.151 +04 46 52.22 24.0r 13UE17 568 C~2NKY 2013 12 06.21068 00 51 53.499 +04 46 31.20 25.1r 13UE17 568 C~2NKY 2014 06 27.57836 01 04 02.603 +06 02 57.23 24.6r 13UE17 568 C~2NKY 2014 06 28.58343 01 04 04.449 +06 03 07.57 24.8r 13UE17 568 C~2NKY 2014 07 24.54140 01 04 21.866 +06 04 25.92 24.9r 13UE17 568 C~2NKY 2014 07 27.57207 01 04 20.106 +06 04 11.49 24.4r 13UE17 568 C~2NKY 2014 11 19.20228 00 57 40.855 +05 22 23.93 24.1r 13UE17 568 C~2NKY 2014 11 19.26959 00 57 40.623 +05 22 22.70 24.4r 13UE17 568 C~2NKY 2014 11 25.21887 00 57 22.807 +05 20 36.31 24.4r 13UE17 568 C~2NKY 2015 01 17.27935 00 56 52.493 +05 18 24.86 25.1r 13UE17 568 C~2NKY 2015 08 20.52313 01 08 44.332 +06 30 49.43 24.6r 13UE17 568 C~2NKY
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 0.01 0.00 -0.11
2 0.0001 -1.06 -0.07 -0.06 -0.14
3 0.0901 -1370.72 0.05 -26.69 -0.08
4 0.1776 -3546.69 -0.14 -37.13 0.11
5 0.1778 -3551.29 0.05 -37.18 0.03
6 0.1778 -3552.09 -0.04 -37.28 -0.07
7 0.1778 -3552.41 0.02 -37.41 -0.20
8 0.2456 -5310.36 -0.05 -32.25 0.25
9 0.2458 -5313.37 -0.17 -32.47 -0.01
10 0.2459 -5316.27 -0.20 -32.38 0.04
11 0.2485 -5377.67 0.07 -32.09 -0.05
12 0.2488 -5385.71 0.03 -31.98 -0.05
13 0.2598 -5641.41 0.19 -29.91 0.08
14 0.3250 -6863.63 0.17 -13.45 0.06
15 0.3388 -7040.21 -0.14 -9.02 0.02
16 0.3389 -7041.39 0.24 -8.90 0.07
17 0.3442 -7099.93 -0.05 -7.14 0.10
18 0.9009 4717.63 -0.04 33.16 0.04
19 0.9037 4747.04 0.12 32.17 0.08
20 0.9748 5017.20 0.04 5.17 0.12
21 0.9831 4987.40 0.00 1.88 -0.11
22 1.2969 -1478.53 0.08 -26.04 -0.09
23 1.2971 -1482.21 -0.06 -25.84 0.03
24 1.3134 -1768.74 0.11 -21.52 -0.20
25 1.4586 -2237.22 -0.17 31.68 0.11
26 2.0480 9243.78 -0.03 -24.25 -0.02
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.
13UE17 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.383 43.398 43.368 ecceobj 0.051 0.052 0.049 incobj 0.716 0.716 0.716 qmin 40.216 40.201 40.254 qmax 46.230 46.262 46.120 amean 43.122 43.130 43.106 amin 42.789 42.791 42.766 amax 43.468 43.485 43.452 emean 0.047 0.048 0.045 emin 0.024 0.025 0.023 emax 0.064 0.065 0.062 imean 1.706 1.706 1.714 imin 0.561 0.568 0.566 imax 2.382 2.380 2.398 excite_mean 0.056 0.057 0.054 fracstop 1.000 1.000 1.000 cjmean 3.087 3.087 3.087 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 180.9 180.7 179.2 kozaiamp 180.0 179.9 180.0