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: 500835
# Created Wed Dec 25 02:07:09 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 44 observations of 44
# Arc: 17.13y
# First observation: 2000/02/12
# Last observation: 2017/03/31
# Chi-squared of fit: 12.88 DOF: 82 RMS: 0.10
# Min/Max residuals: -0.46 0.36
# Exact a, adot, b, bdot, g, gdot:
1.594212E-05 2.472621E-02 -4.409084E-07 -6.324721E-04 2.456021E-02 9.267346E-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
2.404708 -165.588474 0.769773 0.025943 -0.623286 2451586.965312
# Heliocentric elements and errors
Epoch: 2451586.5000 = 2000/02/12
Mean Anomaly: 18.33329 +/- 0.000
Argument of Peri: 100.31088 +/- 0.000
Long of Asc Node: 72.30718 +/- 0.000
Inclination: 2.76359 +/- 0.000
Eccentricity: 0.06078998 +/- 0.0000
Semi-Major Axis: 43.85219315 +/- 0.0000
Time of Perihelion: 2446184.8893 +/- 0.0
Perihelion: 41.18641912 +/- 0.0000
Aphelion: 46.51796719 +/- 0.0000
Period (y) 290.3990 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -40.18904423 +/- 0.0000
Ecliptic Y -9.53197282 +/- 0.0000
Ecliptic Z 1.70837476 +/- 0.0000
Ecliptic XDOT 0.00057745 +/- 0.0000
Ecliptic YDOT -0.00268896 +/- 0.0000
Ecliptic ZDOT -0.00006600 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.33926999 +/- 0.0000
Geocenter to KBO 40.71626910 +/- 0.0000
# Hcoef: 7.03
The following table shows the complete astrometric record for 500835. 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 (500835) followed by the observatory code and reference code for the source of the astrometry.
2000 02 12.464569 12 56 47.67 -03 27 49.7 23.3V 500835 645 C~2glL 2000 02 12.465398 12 56 47.67 -03 27 49.7 500835 645 C~2glL 2000 02 12.467886 12 56 47.66 -03 27 49.7 500835 645 C~2glL 2013 02 08.55640 14 04 18.773 -10 40 16.86 23.2r 500835 568 C~1XRY 2013 02 08.60359 14 04 18.747 -10 40 16.62 23.7r 500835 568 C~1XRY 2013 04 04.41383 14 01 44.607 -10 25 06.63 23.1r 500835 568 C~1XRY 2013 04 04.45396 14 01 44.421 -10 25 05.65 22.8r 500835 568 C~1XRY 2013 04 04.49439 14 01 44.242 -10 25 04.68 23.0r 500835 568 C~1XRY 2013 04 05.53143 14 01 39.690 -10 24 39.86 22.6r 500835 568 C~1XRY 2013 04 05.53531 14 01 39.660 -10 24 39.53 23.0r 500835 568 C~1XRY 2013 04 06.58684 14 01 35.025 -10 24 14.27 23.0r 500835 568 C~1XRY 2013 04 08.38751 14 01 27.011 -10 23 30.14 23.4r 500835 568 C~1XRY 2013 05 11.41804 13 58 56.196 -10 10 15.45 23.0r 500835 568 C~1XRY 2013 05 12.41931 13 58 51.867 -10 09 53.37 23.3r 500835 568 C~1XRY 2013 06 13.29820 13 56 58.758 -10 00 46.70 23.2r 500835 568 C~1XRY 2013 07 04.27893 13 56 21.950 -09 58 28.63 23.1r 500835 568 C~1XRY 2013 07 06.28622 13 56 20.339 -09 58 26.24 23.5r 500835 568 C~1XRY 2014 02 25.51607 14 09 09.454 -11 08 41.03 23.2r 500835 568 C~1XRY 2014 02 25.55969 14 09 09.365 -11 08 40.55 23.1r 500835 568 C~1XRY 2014 02 25.60433 14 09 09.272 -11 08 39.97 23.1r 500835 568 C~1XRY 2014 02 27.62682 14 09 04.982 -11 08 13.70 23.4r 500835 568 C~1XRY 2014 03 28.41797 14 07 32.252 -10 59 26.23 23.3r 500835 568 C~1XRY 2014 03 28.45726 14 07 32.089 -10 59 25.23 500835 568 C~1XRY 2014 04 05.38215 14 06 58.641 -10 56 23.44 23.0r 500835 568 C~1XRY 2014 04 29.33023 14 05 08.997 -10 46 45.90 23.2r 500835 568 C~1XRY 2014 04 29.33527 14 05 08.972 -10 46 45.77 23.4r 500835 568 C~1XRY 2014 04 29.37062 14 05 08.808 -10 46 44.95 23.1r 500835 568 C~1XRY 2014 04 29.37566 14 05 08.779 -10 46 44.80 23.1r 500835 568 C~1XRY 2014 04 29.41097 14 05 08.613 -10 46 44.00 23.0r 500835 568 C~1XRY 2014 04 29.41601 14 05 08.589 -10 46 43.82 23.1r 500835 568 C~1XRY 2014 05 22.40562 14 03 27.895 -10 38 16.83 23.0r 500835 568 C~1XRY 2014 05 28.37773 14 03 04.889 -10 36 25.62 23.3r 500835 568 C~1XRY 2015 04 19.41871 14 11 14.573 -11 22 10.49 22.9r 500835 568 C~2KOF 2015 04 19.42375 14 11 14.517 -11 22 10.41 26.6u 500835 568 C~2KOF 2015 04 19.48487 14 11 14.254 -11 22 08.91 23.0r 500835 568 C~2KOF 2016 02 04.64352 14 19 58.408 -12 11 56.59 23.4w 500835 568 C~2KOF 2016 02 11.62203 14 19 57.214 -12 11 36.32 23.6w 500835 568 C~2KOF 2016 03 11.62923 14 19 05.282 -12 06 22.29 500835 568 C~2KOF 2016 03 12.50183 14 19 02.676 -12 06 07.84 500835 568 C~2KOG 2016 03 13.35759 14 19 00.05 -12 05 53.5 23.1R 500835 G37 C~1pQU 2016 03 13.43911 14 18 59.80 -12 05 52.2 500835 G37 C~1pQU 2017 03 28.58864 14 23 26.122 -12 31 25.23 500835 568 C~2KOG 2017 03 29.52041 14 23 22.463 -12 31 06.12 23.2w 500835 568 C~2KOG 2017 03 31.46997 14 23 14.662 -12 30 25.89 23.5w 500835 568 C~2KOG
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 -0.00 0.00 0.01
2 0.0000 0.00 0.03 0.00 -0.01
3 0.0000 0.00 -0.03 0.00 -0.05
4 12.9914 0.00 -0.02 0.00 0.07
5 12.9915 0.00 0.12 0.00 0.04
6 13.1415 0.00 0.10 0.00 -0.02
7 13.1417 0.00 -0.01 0.00 -0.00
8 13.1418 0.00 0.01 0.00 -0.00
9 13.1446 0.00 0.09 0.00 -0.11
10 13.1446 0.00 -0.10 0.00 0.12
11 13.1475 0.00 0.19 0.00 -0.02
12 13.1524 0.00 0.21 0.00 0.36
13 13.2429 0.00 -0.05 0.00 -0.05
14 13.2456 0.00 0.03 0.00 -0.02
15 13.3329 0.00 0.01 0.00 0.01
16 13.3903 0.00 0.01 0.00 0.03
17 13.3958 0.00 0.01 0.00 0.08
18 14.0371 0.00 -0.11 0.00 0.05
19 14.0372 0.00 -0.06 0.00 -0.01
20 14.0373 0.00 -0.04 0.00 0.01
21 14.0429 0.00 -0.01 0.00 -0.05
22 14.1217 0.00 -0.08 0.00 -0.18
23 14.1218 0.00 -0.08 0.00 -0.05
24 14.1435 0.00 0.02 0.00 0.12
25 14.2091 0.00 0.01 0.00 -0.05
26 14.2091 0.00 -0.01 0.00 -0.04
27 14.2092 0.00 0.03 0.00 -0.07
28 14.2092 0.00 -0.05 0.00 -0.04
29 14.2093 0.00 -0.04 0.00 -0.08
30 14.2093 0.00 -0.04 0.00 -0.02
31 14.2723 0.00 0.15 0.00 -0.01
32 14.2886 0.00 -0.02 0.00 -0.13
33 15.1813 0.00 0.03 0.00 0.06
34 15.1813 0.00 -0.46 0.00 0.02
35 15.1814 0.00 -0.07 0.00 0.05
36 15.9786 0.00 -0.07 0.00 -0.05
37 15.9977 0.00 -0.02 0.00 -0.10
38 16.0771 0.00 0.13 0.00 0.13
39 16.0795 0.00 0.12 0.00 0.12
40 16.0818 0.00 -0.02 0.00 0.08
41 16.0821 0.00 0.10 0.00 -0.00
42 17.1229 0.00 -0.07 0.00 -0.10
43 17.1254 0.00 -0.01 0.00 0.02
44 17.1307 0.00 0.09 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.
500835 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.843 43.843 43.843 ecceobj 0.061 0.061 0.061 incobj 2.764 2.764 2.764 qmin 40.424 40.427 40.424 qmax 48.115 48.113 48.115 amean 44.157 44.157 44.157 amin 43.819 43.821 43.812 amax 44.525 44.524 44.526 emean 0.065 0.065 0.065 emin 0.049 0.049 0.049 emax 0.081 0.081 0.081 imean 1.323 1.323 1.323 imin 0.527 0.527 0.527 imax 1.909 1.909 1.909 excite_mean 0.069 0.069 0.069 fracstop 1.000 1.000 1.000 cjmean 3.098 3.098 3.098 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 178.5 178.5 178.5 kozaiamp 179.9 179.9 179.9