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: 505478
# Created Wed Dec 25 02:07:11 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 48 observations of 48
# Arc: 12.94y
# First observation: 2004/09/21
# Last observation: 2017/08/30
# Chi-squared of fit: 17.11 DOF: 90 RMS: 0.11
# Min/Max residuals: -0.29 0.36
# Exact a, adot, b, bdot, g, gdot:
1.163881E-05 1.274674E-02 -1.517067E-06 -2.385926E-03 1.537629E-02 -8.258469E-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
0.787850 7.966530 0.163284 0.013756 -0.994659 2453269.915953
# Heliocentric elements and errors
Epoch: 2453270.5000 = 2004/09/22
Mean Anomaly: 351.94815 +/- 0.000
Argument of Peri: 252.51409 +/- 0.000
Long of Asc Node: 191.94532 +/- 0.000
Inclination: 10.67959 +/- 0.000
Eccentricity: 0.77927534 +/- 0.0000
Semi-Major Axis: 198.24926827 +/- 0.0000
Time of Perihelion: 2476074.3826 +/- 0.0
Perihelion: 43.75850295 +/- 0.0000
Aphelion: 352.74003359 +/- 0.0000
Period (y) 2791.4226 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 65.40497480 +/- 0.0000
Ecliptic Y 8.99061396 +/- 0.0000
Ecliptic Z 0.89416132 +/- 0.0000
Ecliptic XDOT -0.00176656 +/- 0.0000
Ecliptic YDOT 0.00203769 +/- 0.0000
Ecliptic ZDOT -0.00044491 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 66.02662026 +/- 0.0000
Geocenter to KBO 65.03579634 +/- 0.0000
# Hcoef: 6.21
The following table shows the complete astrometric record for 505478. 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 (505478) followed by the observatory code and reference code for the source of the astrometry.
2004 09 21.415210 00 28 01.21 +03 53 03.1 505478 568 C~5V1B 2004 09 21.446345 00 28 01.11 +03 53 02.7 505478 568 C~5V1B 2004 09 22.420084 00 27 58.32 +03 52 43.4 505478 568 C~5V1B 2004 12 03.261626 00 25 14.61 +03 32 58.6 505478 568 C~5V1B 2007 11 09.427544 00 34 43.95 +04 07 19.6 505478 568 C~5V1B 2013 08 02.50855 00 58 03.918 +05 38 34.42 24.1r 505478 568 C~2NKV 2013 08 02.55128 00 58 03.873 +05 38 34.21 24.1r 505478 568 C~2NKV 2013 08 11.50755 00 57 53.281 +05 37 08.80 23.7r 505478 568 C~2NKV 2013 08 30.42396 00 57 17.948 +05 32 48.60 23.8r 505478 568 C~2NKV 2013 08 31.42817 00 57 15.637 +05 32 32.14 24.3r 505478 568 C~2NKV 2013 08 31.47118 00 57 15.530 +05 32 31.47 24.1r 505478 568 C~2NKV 2013 09 04.40817 00 57 06.110 +05 31 24.63 24.0r 505478 568 C~2NKV 2013 09 04.45095 00 57 05.996 +05 31 23.86 23.8r 505478 568 C~2NKV 2013 10 06.38359 00 55 34.654 +05 20 53.87 23.8r 505478 568 C~2NKV 2013 10 06.44798 00 55 34.440 +05 20 52.44 24.1r 505478 568 C~2NKV 2013 10 06.45762 00 55 34.424 +05 20 52.20 23.7r 505478 568 C~2NKV 2013 10 06.46264 00 55 34.397 +05 20 52.09 23.9r 505478 568 C~2NKV 2013 10 09.51275 00 55 25.014 +05 19 48.27 23.9r 505478 568 C~2NKV 2013 10 31.23096 00 54 20.278 +05 12 29.10 24.2r 505478 568 C~2GtD 2013 10 31.27407 00 54 20.136 +05 12 28.23 24.0r 505478 568 C~2GtD 2013 10 31.31685 00 54 20.032 +05 12 27.56 24.2r 505478 568 C~2GtD 2013 11 01.25731 00 54 17.428 +05 12 09.73 23.9r 505478 568 C~2NKV 2013 11 01.37789 00 54 17.072 +05 12 07.53 23.7r 505478 568 C~2NKV 2013 12 04.25882 00 53 06.351 +05 04 02.02 24.2r 505478 568 C~2NKV 2013 12 04.31091 00 53 06.295 +05 04 01.61 24.0r 505478 568 C~2NKV 2013 12 06.21580 00 53 03.762 +05 03 43.51 24.2r 505478 568 C~2NKV 2014 06 27.57836 01 01 22.269 +05 50 15.46 24.3r 505478 568 C~2NKV 2014 06 28.58343 01 01 23.490 +05 50 20.53 24.0r 505478 568 C~2NKV 2014 07 23.55581 01 01 34.539 +05 50 28.93 24.2r 505478 568 C~2NKV 2014 07 27.53499 01 01 32.877 +05 50 09.02 24.3r 505478 568 C~2NKV 2014 08 22.54836 01 01 00.383 +05 45 46.87 24.4r 505478 568 C~2NKV 2014 08 28.40993 01 00 48.407 +05 44 19.29 23.9r 505478 568 C~2NKV 2014 08 28.44652 01 00 48.338 +05 44 18.76 24.2r 505478 568 C~2NKV 2014 10 23.37180 00 58 08.443 +05 25 59.00 24.0r 505478 568 C~2NKV 2014 10 27.41049 00 57 56.445 +05 24 38.23 23.9r 505478 568 C~2NKV 2014 11 19.20228 00 56 57.029 +05 17 57.58 24.1r 505478 568 C~2NKV 2014 11 19.26959 00 56 56.862 +05 17 56.54 23.9r 505478 568 C~2NKV 2014 11 25.21887 00 56 44.611 +05 16 33.05 23.9r 505478 568 C~2NKV 2015 01 17.27935 00 56 23.597 +05 13 31.97 24.2r 505478 568 C~2NKV 2015 08 20.53131 01 04 33.207 +05 57 17.18 23.8r 505478 568 C~2NKV 2015 12 07.36957 00 59 51.187 +05 25 08.42 24.3w 505478 568 C~2NKV 2017 01 31.21678 01 03 37.834 +05 37 15.54 24.1w 505478 568 C~2GtD 2017 01 31.22433 01 03 37.844 +05 37 15.65 505478 568 C~2GtD 2017 07 24.59111 01 12 06.907 +06 23 26.09 24.1w 505478 568 C~2NKV 2017 08 25.54688 01 11 31.081 +06 18 14.30 24.2w 505478 568 C~2NKV 2017 08 25.62549 01 11 30.914 +06 18 13.15 23.7w 505478 568 C~2NKV 2017 08 30.48798 01 11 20.778 +06 16 57.98 24.1w 505478 568 C~2NKV 2017 08 30.54049 01 11 20.649 +06 16 57.13 24.2w 505478 568 C~2NKV
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 0.36 0.00 -0.06
2 0.0001 0.00 0.20 0.00 0.15
3 0.0028 0.00 -0.29 0.00 -0.09
4 0.1994 0.00 -0.18 0.00 0.03
5 3.1321 0.00 -0.10 0.00 0.05
6 8.8627 0.00 0.00 0.00 -0.11
7 8.8628 0.00 -0.04 0.00 0.02
8 8.8873 0.00 -0.14 0.00 0.01
9 8.9391 0.00 -0.01 0.00 -0.04
10 8.9419 0.00 -0.02 0.00 -0.04
11 8.9420 0.00 -0.10 0.00 -0.00
12 8.9528 0.00 -0.03 0.00 -0.07
13 8.9529 0.00 -0.13 0.00 -0.09
14 9.0403 0.00 0.04 0.00 0.06
15 9.0405 0.00 -0.14 0.00 -0.02
16 9.0405 0.00 0.08 0.00 -0.05
17 9.0405 0.00 -0.09 0.00 -0.06
18 9.0489 0.00 0.31 0.00 0.10
19 9.1083 0.00 0.06 0.00 -0.03
20 9.1084 0.00 -0.24 0.00 -0.09
21 9.1086 0.00 0.03 0.00 0.05
22 9.1111 0.00 0.12 0.00 -0.05
23 9.1115 0.00 -0.12 0.00 0.00
24 9.2015 0.00 -0.06 0.00 0.01
25 9.2016 0.00 0.23 0.00 0.11
26 9.2068 0.00 0.15 0.00 0.08
27 9.7636 0.00 0.01 0.00 0.08
28 9.7664 0.00 0.06 0.00 -0.01
29 9.8347 0.00 0.16 0.00 -0.03
30 9.8456 0.00 0.13 0.00 -0.08
31 9.9169 0.00 -0.05 0.00 0.05
32 9.9329 0.00 -0.12 0.00 -0.10
33 9.9330 0.00 0.06 0.00 -0.05
34 10.0861 0.00 0.16 0.00 0.13
35 10.0972 0.00 0.07 0.00 0.08
36 10.1596 0.00 0.02 0.00 0.04
37 10.1598 0.00 -0.21 0.00 0.00
38 10.1761 0.00 0.05 0.00 -0.10
39 10.3213 0.00 -0.03 0.00 0.11
40 10.9107 0.00 0.03 0.00 -0.01
41 11.2086 0.00 -0.03 0.00 -0.11
42 12.3609 0.00 0.01 0.00 -0.05
43 12.3609 0.00 -0.07 0.00 -0.03
44 12.8383 0.00 -0.02 0.00 -0.03
45 12.9258 0.00 0.01 0.00 0.05
46 12.9260 0.00 -0.10 0.00 0.06
47 12.9393 0.00 0.14 0.00 0.08
48 12.9394 0.00 -0.01 0.00 0.07
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.
505478 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 208.363 208.356 208.370 ecceobj 0.788 0.788 0.788 incobj 10.610 10.610 10.610 qmin 41.867 41.880 41.846 qmax 379.808 379.134 379.375 amean 201.135 200.576 200.796 amin 194.745 193.934 193.971 amax 211.847 211.519 211.639 emean 0.781 0.781 0.781 emin 0.771 0.771 0.771 emax 0.793 0.792 0.793 imean 10.522 10.524 10.517 imin 10.385 10.393 10.383 imax 10.743 10.737 10.749 excite_mean 0.803 0.802 0.802 fracstop 1.000 1.000 1.000 cjmean 3.321 3.321 3.321 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 279.1 278.2 279.0 kozaiamp 27.8 27.3 27.5