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: 13UY17 # Created Thu Apr 25 01:15:25 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: -0.000124 0.020487 0.000001 0.001553 0.022272 0.000000 # Chi-squared of fit: 12.67 DOF: 68 RMS: 0.10 # Min/Max residuals: -0.29 0.32 # Exact a, adot, b, bdot, g, gdot: 1.446326E-05 2.035556E-02 1.165391E-06 1.553317E-03 2.221256E-02 1.382392E-03 # Covariance matrix: 1.3900E-13 -6.2543E-15 -8.3021E-16 7.5004E-15 1.1573E-13 2.8062E-12 -6.2543E-15 2.7241E-13 -4.2967E-15 2.4980E-14 1.6026E-13 8.9985E-12 -8.3021E-16 -4.2967E-15 7.6386E-14 -6.4912E-14 -3.2838E-15 -2.4760E-13 7.5004E-15 2.4980E-14 -6.4912E-14 1.1535E-13 2.2797E-14 1.4118E-12 1.1573E-13 1.6026E-13 -3.2838E-15 2.2797E-14 2.3997E-13 8.3569E-12 2.8062E-12 8.9985E-12 -2.4760E-13 1.4118E-12 8.3569E-12 5.0749E-10 # lat0 lon0 xBary yBary zBary JD0 -1.049803 17.059674 0.935582 -0.007264 -0.398064 2456507.032638 # Heliocentric elements and errors Epoch: 2456500.5000 = 2013/07/27 Mean Anomaly: 114.72519 +/- 0.654 Argument of Peri: 226.65890 +/- 0.644 Long of Asc Node: 29.34954 +/- 0.003 Inclination: 4.45848 +/- 0.001 Eccentricity: 0.05024864 +/- 0.0009 Semi-Major Axis: 44.40435383 +/- 0.0056 Time of Perihelion: 2422058.1295 +/- 196.3 Perihelion: 42.17309525 +/- 0.0409 Aphelion: 46.63561241 +/- 0.0410 Period (y) 295.9011 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 43.68631928 +/- 0.0010 Ecliptic Y 12.43058097 +/- 0.0003 Ecliptic Z -0.82473141 +/- 0.0000 Ecliptic XDOT -0.00057606 +/- 0.0000 Ecliptic YDOT 0.00244875 +/- 0.0000 Ecliptic ZDOT 0.00018844 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.42789911 +/- 0.0009 Geocenter to KBO 45.01957792 +/- 0.0010 # Hcoef: 7.35
The following table shows the complete astrometric record for 13UY17. 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 (13UY17) followed by the observatory code and reference code for the source of the astrometry.
2013 08 02.53186 01 04 30.816 +05 43 53.17 24.1r 13UY17 568 C~2NKb 2013 08 02.57457 01 04 30.761 +05 43 52.93 24.3r 13UY17 568 C~2NKb 2013 08 30.44895 01 03 29.837 +05 37 29.18 23.7r 13UY17 568 C~2NKb 2013 08 31.45170 01 03 26.735 +05 37 09.79 23.8r 13UY17 568 C~2NKb 2013 08 31.51259 01 03 26.556 +05 37 08.95 24.1r 13UY17 568 C~2NKb 2013 08 31.51726 01 03 26.528 +05 37 08.56 23.6r 13UY17 568 C~2NKb 2013 09 04.43153 01 03 13.886 +05 35 50.54 24.0r 13UY17 568 C~2NKb 2013 09 04.47439 01 03 13.746 +05 35 49.66 24.7r 13UY17 568 C~2NKb 2013 09 04.50640 01 03 13.625 +05 35 48.69 24.1r 13UY17 568 C~2NKb 2013 10 06.41277 01 01 09.095 +05 23 12.80 23.4r 13UY17 568 C~2NKb 2013 10 06.50014 01 01 08.722 +05 23 10.41 23.7r 13UY17 568 C~2NKb 2013 10 06.50554 01 01 08.690 +05 23 10.15 24.0r 13UY17 568 C~2NKb 2013 10 06.51103 01 01 08.663 +05 23 10.09 22.7r 13UY17 568 C~2NKb 2013 10 06.51584 01 01 08.647 +05 23 09.90 23.9r 13UY17 568 C~2NKb 2013 10 09.54274 01 00 55.822 +05 21 53.03 23.8r 13UY17 568 C~2NKb 2013 10 31.25446 00 59 26.251 +05 13 04.27 23.6r 13UY17 568 C~2NKb 2013 10 31.29744 00 59 26.074 +05 13 03.23 23.9r 13UY17 568 C~2NKb 2013 10 31.34016 00 59 25.906 +05 13 02.31 23.8r 13UY17 568 C~2NKb 2013 11 01.28119 00 59 22.269 +05 12 41.28 23.9r 13UY17 568 C~2NKb 2013 11 01.40856 00 59 21.764 +05 12 38.35 23.8r 13UY17 568 C~2NKb 2013 11 05.45881 00 59 06.474 +05 11 09.93 23.8r 13UY17 568 C~2NKb 2013 12 04.27126 00 57 41.941 +05 03 20.75 23.8r 13UY17 568 C~2NKb 2013 12 04.32344 00 57 41.843 +05 03 20.23 24.1r 13UY17 568 C~2NKb 2014 06 27.59003 01 08 31.034 +06 14 32.99 23.9r 13UY17 568 C~2NKb 2014 06 28.59510 01 08 32.754 +06 14 43.12 24.1r 13UY17 568 C~2NKb 2014 07 24.55310 01 08 49.447 +06 16 14.18 23.9r 13UY17 568 C~2NKb 2014 07 27.58380 01 08 47.871 +06 16 03.28 24.3r 13UY17 568 C~2NKb 2014 08 22.56814 01 08 06.060 +06 11 39.69 23.6r 13UY17 568 C~2NKb 2014 08 22.58822 01 08 06.005 +06 11 39.78 23.7r 13UY17 568 C~2NKb 2014 08 22.59325 01 08 05.978 +06 11 39.58 24.0r 13UY17 568 C~2NKb 2014 08 28.43479 01 07 50.202 +06 10 02.41 23.5r 13UY17 568 C~2NKb 2014 10 23.35237 01 04 13.473 +05 48 22.82 23.8r 13UY17 568 C~2NKb 2014 10 27.39107 01 03 56.931 +05 46 46.12 23.7r 13UY17 568 C~2NKb 2014 12 17.27453 01 01 33.369 +05 33 34.06 24.0r 13UY17 568 C~2NKb 2015 01 17.30307 01 01 39.198 +05 35 21.38 24.2r 13UY17 568 C~2NKb 2015 08 20.50656 01 12 24.366 +06 43 47.39 24.1r 13UY17 568 C~2NKb 2015 12 07.39423 01 06 00.323 +06 06 27.35 24.3w 13UY17 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 0.01 0.00 -0.01
2 0.0001 -0.85 0.03 0.09 0.08
3 0.0764 -987.86 -0.00 -6.76 0.17
4 0.0792 -1038.07 -0.03 -6.96 -0.01
5 0.0793 -1040.86 0.32 -6.71 0.21
6 0.0794 -1041.39 0.02 -6.91 0.01
7 0.0901 -1245.61 0.00 -6.78 0.05
8 0.0902 -1247.88 0.08 -6.79 0.02
9 0.0903 -1249.92 -0.20 -7.00 -0.21
10 0.1776 -3257.27 0.08 7.11 0.15
11 0.1779 -3263.34 0.07 7.04 -0.02
12 0.1779 -3263.88 -0.10 6.98 -0.09
13 0.1779 -3264.27 -0.11 7.08 0.00
14 0.1779 -3264.57 -0.07 7.00 -0.08
15 0.1862 -3470.99 0.23 9.47 -0.23
16 0.2456 -4909.91 0.05 34.77 -0.08
17 0.2458 -4912.75 -0.08 34.82 -0.10
18 0.2459 -4915.42 -0.04 34.94 -0.07
19 0.2485 -4973.69 0.02 36.39 0.06
20 0.2488 -4981.79 -0.08 36.59 0.01
21 0.2599 -5226.78 -0.01 42.71 0.03
22 0.3388 -6574.14 -0.12 95.24 0.03
23 0.3389 -6575.69 0.03 95.33 -0.01
24 0.9009 4014.92 0.04 334.20 0.05
25 0.9037 4042.50 0.07 333.81 0.05
26 0.9747 4307.44 0.07 323.33 0.06
27 0.9830 4281.55 -0.18 322.19 0.03
28 1.0542 3604.44 -0.11 315.66 -0.29
29 1.0542 3603.72 0.00 316.06 0.10
30 1.0542 3603.27 -0.24 316.03 0.07
31 1.0702 3348.66 0.05 315.75 0.05
32 1.2233 -136.10 0.04 348.11 0.02
33 1.2344 -401.18 -0.03 353.15 -0.01
34 1.3737 -2684.20 -0.08 441.96 -0.02
35 1.4586 -2562.67 0.19 507.72 -0.03
36 2.0478 7901.55 0.08 637.36 0.00
37 2.3460 1751.42 0.02 741.59 0.00
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.
13UY17 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.640 44.659 44.622 ecceobj 0.050 0.053 0.048 incobj 4.448 4.447 4.448 qmin 41.501 41.423 41.572 qmax 47.528 47.592 47.366 amean 44.382 44.400 44.364 amin 44.043 44.047 44.029 amax 44.750 44.766 44.719 emean 0.048 0.050 0.046 emin 0.033 0.035 0.030 emax 0.062 0.064 0.059 imean 3.969 3.969 3.970 imin 3.362 3.363 3.359 imax 4.456 4.457 4.456 excite_mean 0.084 0.085 0.083 fracstop 1.000 1.000 1.000 cjmean 3.097 3.097 3.097 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 179.5 179.7 179.8 kozaiamp 180.0 179.9 180.0