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: 506439 # Created Wed Dec 25 02:07:11 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 36 observations of 36 # Arc: 17.01y # First observation: 2000/12/16 # Last observation: 2017/12/20 # Chi-squared of fit: 119.78 DOF: 66 RMS: 0.32 # Min/Max residuals: -1.01 0.68 # Exact a, adot, b, bdot, g, gdot: 1.625216E-05 2.707331E-02 2.206479E-06 3.257685E-04 2.660484E-02 4.560529E-04 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 -3.837469 55.948865 -0.473081 -0.057513 -0.855014 2451894.767073 # Heliocentric elements and errors Epoch: 2451894.5000 = 2000/12/16 Mean Anomaly: 59.87367 +/- 0.000 Argument of Peri: 217.88296 +/- 0.000 Long of Asc Node: 135.56979 +/- 0.000 Inclination: 3.82202 +/- 0.000 Eccentricity: 0.03265989 +/- 0.0000 Semi-Major Axis: 39.06012687 +/- 0.0000 Time of Perihelion: 2437064.8041 +/- 0.0 Perihelion: 37.78442744 +/- 0.0000 Aphelion: 40.33582631 +/- 0.0000 Period (y) 244.1230 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 21.09120716 +/- 0.0000 Ecliptic Y 32.05267699 +/- 0.0000 Ecliptic Z -2.51548763 +/- 0.0000 Ecliptic XDOT -0.00228891 +/- 0.0000 Ecliptic YDOT 0.00160483 +/- 0.0000 Ecliptic ZDOT 0.00003048 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.45178103 +/- 0.0000 Geocenter to KBO 37.58718617 +/- 0.0000 # Hcoef: 7.06
The following table shows the complete astrometric record for 506439. 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 (506439) followed by the observatory code and reference code for the source of the astrometry.
2000 12 16.26633 03 38 15.33 +15 30 41.2 22.4R 506439 695 Cc4111 2000 12 16.35374 03 38 14.93 +15 30 40.1 22.3R 506439 695 Cc4111 2000 12 16.38591 03 38 14.78 +15 30 39.8 22.2R 506439 695 Cc4111 2000 12 18.09808 03 38 06.81 +15 30 18.1 506439 695 Cc4111 2001 02 14.84637 03 36 05.09 +15 28 43.3 506439 950 Cc6738 2001 02 16.85280 03 36 07.14 +15 29 03.4 22.2R 506439 950 Cc6738 2001 09 19.41135 03 51 07.08 +16 16 21.1 506439 695 Cd5779 2001 09 19.46490 03 51 06.97 +16 16 20.5 506439 695 Cd5779 2001 09 21.43870 03 51 03.04 +16 15 57.6 506439 290 Cd5779 2001 09 21.48613 03 51 02.93 +16 15 57.0 506439 290 Cd5779 2001 10 21.32125 03 49 22.02 +16 08 34.0 506439 696 Cd9166 2001 10 21.35896 03 49 21.88 +16 08 32.8 22.3R 506439 696 Cd9166 2001 12 13.08442 03 44 48.38 +15 53 44.8 506439 950 Ce3555 2001 12 13.14503 03 44 48.08 +15 53 44.0 506439 950 Ce3555 2003 12 21.167282 03 56 46.12 +16 34 38.2 22.5V 506439 645 C~1PqX 2003 12 21.168111 03 56 46.12 +16 34 38.2 22.0V 506439 645 C~1PqX 2003 12 21.170599 03 56 46.11 +16 34 38.2 23.1V 506439 645 C~1PqX 2004 11 20.30587 04 05 43.59 +17 01 27.5 22.5R 506439 568 Cm0397 2004 11 20.36370 04 05 43.27 +17 01 26.8 506439 568 Cm0397 2004 11 21.37478 04 05 37.73 +17 01 11.3 506439 568 Cm0397 2008 09 10.14754 04 34 50.38 +18 25 11.5 25.4R 506439 250 S~06AO 2008 09 10.15379 04 34 50.38 +18 25 11.4 506439 250 S~06AO 2008 09 10.16004 04 34 50.39 +18 25 11.5 506439 250 S~06AO 2008 09 10.21560 04 34 50.37 +18 25 11.1 506439 250 S~06AO 2015 02 18.12244 05 02 58.58 +19 31 15.7 24.7R 506439 695 C~1M60 2015 02 18.16654 05 02 58.53 +19 31 15.7 506439 695 C~1M60 2015 02 18.21444 05 02 58.48 +19 31 15.9 506439 695 C~1M60 2017 10 21.53957 05 30 39.897 +20 08 10.49 506439 568 C~2PjQ 2017 10 21.54352 05 30 39.883 +20 08 10.46 506439 568 C~2PjQ 2017 10 27.51948 05 30 21.428 +20 07 36.99 506439 568 C~2PjQ 2017 11 17.45228 05 28 53.870 +20 05 39.48 22.7w 506439 568 C~2XLd 2017 11 21.51758 05 28 33.500 +20 05 17.46 22.7w 506439 568 C~2XLd 2017 12 16.33062 05 26 17.063 +20 03 20.93 22.7w 506439 568 C~2XLd 2017 12 16.33862 05 26 17.027 +20 03 20.89 22.7w 506439 568 C~2XLd 2017 12 20.42628 05 25 53.894 +20 03 05.71 22.6R 506439 G37 C~2VU7 2017 12 20.48802 05 25 53.550 +20 03 06.02 506439 G37 C~2VU7
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 -0.41
2 0.0002 0.00 0.28 0.00 -0.39
3 0.0003 0.00 0.31 0.00 -0.28
4 0.0050 0.00 -1.01 0.00 -0.79
5 0.1659 0.00 0.39 0.00 -0.01
6 0.1714 0.00 0.27 0.00 -0.01
7 0.7588 0.00 0.00 0.00 0.56
8 0.7589 0.00 -0.06 0.00 0.55
9 0.7643 0.00 -0.10 0.00 0.30
10 0.7645 0.00 -0.21 0.00 0.26
11 0.8461 0.00 -0.58 0.00 0.68
12 0.8462 0.00 -0.09 0.00 0.13
13 0.9906 0.00 0.11 0.00 -0.06
14 0.9908 0.00 0.15 0.00 -0.04
15 3.0114 0.00 0.51 0.00 -0.22
16 3.0114 0.00 0.57 0.00 -0.21
17 3.0114 0.00 0.60 0.00 -0.19
18 3.9289 0.00 -0.61 0.00 -0.29
19 3.9291 0.00 -0.58 0.00 -0.12
20 3.9319 0.00 -0.44 0.00 -0.11
21 7.7341 0.00 0.03 0.00 0.26
22 7.7341 0.00 0.02 0.00 0.19
23 7.7341 0.00 0.16 0.00 0.32
24 7.7343 0.00 -0.23 0.00 0.20
25 14.1735 0.00 -0.28 0.00 0.35
26 14.1736 0.00 -0.28 0.00 0.18
27 14.1737 0.00 -0.22 0.00 0.19
28 16.8467 0.00 0.00 0.00 -0.11
29 16.8468 0.00 -0.04 0.00 -0.12
30 16.8631 0.00 -0.13 0.00 -0.22
31 16.9204 0.00 0.04 0.00 -0.09
32 16.9316 0.00 0.02 0.00 -0.10
33 16.9995 0.00 -0.03 0.00 -0.14
34 16.9995 0.00 0.12 0.00 -0.15
35 17.0107 0.00 0.17 0.00 -0.23
36 17.0109 0.00 0.26 0.00 0.32
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.
506439 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 39.053 39.053 39.053 ecceobj 0.034 0.034 0.034 incobj 3.823 3.823 3.823 qmin 36.500 36.503 36.468 qmax 41.257 41.258 41.256 amean 38.786 38.786 38.787 amin 38.500 38.498 38.501 amax 39.088 39.089 39.088 emean 0.037 0.037 0.037 emin 0.011 0.011 0.011 emax 0.057 0.057 0.057 imean 2.347 2.347 2.347 imin 0.317 0.317 0.317 imax 3.782 3.783 3.780 excite_mean 0.058 0.058 0.058 fracstop 1.000 1.000 1.000 cjmean 3.043 3.043 3.043 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 180.0 179.8 180.0 kozaiamp 180.0 180.0 180.0