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: 506479 # Created Thu Apr 18 01:08:15 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 25 observations of 25 # Arc: 20.14y # First observation: 2003/04/26 # Last observation: 2023/06/15 # Chi-squared of fit: 49.52 DOF: 44 RMS: 0.25 # Min/Max residuals: -0.58 0.73 # Exact a, adot, b, bdot, g, gdot: 1.962234E-05 3.440443E-02 4.787799E-06 9.546661E-03 2.667163E-02 -3.465410E-03 # 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 -0.242849 -163.481508 -0.334450 -0.004029 -0.949858 2452755.835333 # Heliocentric elements and errors Epoch: 2452756.5000 = 2003/04/27 Mean Anomaly: 359.02051 +/- 0.000 Argument of Peri: 10.53378 +/- 0.000 Long of Asc Node: 197.86448 +/- 0.000 Inclination: 15.49177 +/- 0.000 Eccentricity: 0.76576976 +/- 0.0000 Semi-Major Axis: 162.72483773 +/- 0.0000 Time of Perihelion: 2454819.4001 +/- 0.0 Perihelion: 38.11507797 +/- 0.0000 Aphelion: 287.33459749 +/- 0.0000 Period (y) 2075.8166 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -36.76277641 +/- 0.0000 Ecliptic Y -11.24725925 +/- 0.0000 Ecliptic Z -0.15871412 +/- 0.0000 Ecliptic XDOT 0.00133502 +/- 0.0000 Ecliptic YDOT -0.00329083 +/- 0.0000 Ecliptic ZDOT 0.00098165 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.44519522 +/- 0.0000 Geocenter to KBO 37.49313798 +/- 0.0000 # Hcoef: 7.47
The following table shows the complete astrometric record for 506479. 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 (506479) followed by the observatory code and reference code for the source of the astrometry.
2003 04 26.33459 13 00 30.58 -06 43 05.4 23.1R 506479 568 Cq9883 2003 04 26.37682 13 00 30.40 -06 43 04.0 22.6R 506479 568 Cq9883 2003 04 26.41922 13 00 30.21 -06 43 02.7 23.0R 506479 568 Cq9883 2003 04 27.38616 13 00 26.17 -06 42 31.9 22.7R 506479 568 Cq9883 2003 05 30.28314 12 58 37.80 -06 28 00.5 24.0R 506479 568 Cq9883 2003 05 30.33633 12 58 37.67 -06 27 59.6 506479 568 Cq9883 2003 05 30.38312 12 58 37.56 -06 27 58.5 22.7R 506479 568 Cq9883 2004 03 20.57450 13 11 23.42 -07 17 50.1 506479 568 Cq9883 2004 04 15.36368 13 09 28.56 -07 03 36.8 506479 675 Cq9883 2004 04 16.28554 13 09 24.42 -07 03 06.4 506479 675 Cq9883 2004 04 16.35769 13 09 24.10 -07 03 03.8 506479 675 Cq9883 2004 04 16.40518 13 09 23.87 -07 03 02.4 506479 675 Cq9883 2005 07 08.28477 13 14 23.45 -06 51 03.6 22.5r 506479 568 Cq9883 2005 08 02.00975 13 15 15.31 -06 54 36.4 506479 309 Cq9883 2005 08 02.01354 13 15 15.34 -06 54 36.5 506479 309 Cq9883 2005 08 03.00953 13 15 18.62 -06 54 51.5 506479 309 Cq9883 2008 05 03.28039 13 41 29.50 -07 49 01.9 506479 695 Cz0402 2008 05 03.32634 13 41 29.29 -07 49 00.5 506479 695 Cz0402 2016 06 08.19398 14 45 37.669 -08 54 26.96 23.3R 506479 G37 C~2cR4 2016 06 08.22903 14 45 37.530 -08 54 26.48 506479 G37 C~2cR4 2016 06 08.25155 14 45 37.445 -08 54 26.13 506479 G37 C~2cR4 2017 03 30.161697 14 58 49.39 -09 29 51.8 23.4r 506479 950 C~2PjW 2017 04 02.130623 14 58 39.01 -09 28 30.8 23.6r 506479 950 C~2PjW 2023 06 15.205900 15 40 40.991 -09 25 29.64 23.4G 506479 G37 C~6wSZ 2023 06 15.249810 15 40 40.811 -09 25 28.47 506479 G37 C~6wSZ
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 0.22 0.00 0.10
2 0.0001 0.00 0.23 0.00 0.16
3 0.0002 0.00 0.10 0.00 0.10
4 0.0029 0.00 -0.04 0.00 0.13
5 0.0929 0.00 0.29 0.00 0.38
6 0.0931 0.00 0.17 0.00 0.23
7 0.0932 0.00 0.11 0.00 0.41
8 0.9014 0.00 -0.37 0.00 -0.15
9 0.9720 0.00 0.10 0.00 -0.05
10 0.9745 0.00 0.03 0.00 -0.31
11 0.9747 0.00 0.17 0.00 -0.10
12 0.9749 0.00 -0.03 0.00 -0.28
13 2.2011 0.00 0.01 0.00 -0.14
14 2.2688 0.00 -0.58 0.00 -0.19
15 2.2688 0.00 -0.31 0.00 -0.23
16 2.2715 0.00 0.01 0.00 0.38
17 5.0211 0.00 -0.33 0.00 -0.11
18 5.0212 0.00 -0.41 0.00 -0.07
19 13.1194 0.00 0.22 0.00 -0.17
20 13.1195 0.00 0.08 0.00 -0.23
21 13.1196 0.00 0.06 0.00 -0.23
22 13.9270 0.00 0.26 0.00 -0.15
23 13.9351 0.00 0.28 0.00 -0.13
24 20.1365 0.00 -0.21 0.00 0.04
25 20.1367 0.00 -0.21 0.00 0.73
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.
506479 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 155.779 155.777 155.780 ecceobj 0.755 0.755 0.755 incobj 15.538 15.538 15.538 qmin 35.909 35.818 35.974 qmax 308.623 305.783 308.746 amean 163.418 162.818 162.354 amin 155.779 155.200 155.639 amax 173.236 171.576 173.113 emean 0.769 0.769 0.767 emin 0.753 0.752 0.752 emax 0.783 0.782 0.783 imean 14.512 14.441 14.604 imin 13.742 13.685 13.834 imax 15.822 15.842 15.823 excite_mean 0.809 0.808 0.808 fracstop 1.000 1.000 1.000 cjmean 3.066 3.066 3.067 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 65.3 66.4 61.9 kozaiamp 55.9 54.9 53.2