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: 500832 # Created Sun Nov 24 02:07:09 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 35 observations of 35 # Arc: 10.20y # First observation: 2013/04/04 # Last observation: 2023/06/15 # Chi-squared of fit: 13.38 DOF: 64 RMS: 0.11 # Min/Max residuals: -0.30 0.30 # Exact a, adot, b, bdot, g, gdot: 1.886567E-05 3.338555E-02 7.135777E-06 1.105385E-02 2.785646E-02 -8.621015E-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 -0.482050 -147.000941 0.313998 -0.007967 -0.951067 2456386.906608 # Heliocentric elements and errors Epoch: 2456386.5000 = 2013/04/04 Mean Anomaly: 352.19915 +/- 0.000 Argument of Peri: 36.45858 +/- 0.000 Long of Asc Node: 213.92097 +/- 0.000 Inclination: 18.38514 +/- 0.000 Eccentricity: 0.60712922 +/- 0.0000 Semi-Major Axis: 86.30269011 +/- 0.0000 Time of Perihelion: 2462732.1240 +/- 0.0 Perihelion: 33.90580557 +/- 0.0000 Aphelion: 138.69957465 +/- 0.0000 Period (y) 801.7606 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -31.07373045 +/- 0.0000 Ecliptic Y -19.80312357 +/- 0.0000 Ecliptic Z -0.30174577 +/- 0.0000 Ecliptic XDOT 0.00248370 +/- 0.0000 Ecliptic YDOT -0.00229506 +/- 0.0000 Ecliptic ZDOT 0.00109365 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 36.84894464 +/- 0.0000 Geocenter to KBO 35.89852335 +/- 0.0000 # Hcoef: 8.11
The following table shows the complete astrometric record for 500832. 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 (500832) followed by the observatory code and reference code for the source of the astrometry.
2013 04 04.40583 14 02 28.172 -12 57 52.95 23.4r 500832 568 C~1XRW 2013 04 04.44572 14 02 27.984 -12 57 51.59 23.6r 500832 568 C~1XRW 2013 04 04.48637 14 02 27.790 -12 57 50.14 23.7r 500832 568 C~1XRW 2013 04 06.57873 14 02 17.993 -12 56 44.84 21.0r 500832 568 C~1XRW 2013 04 08.37962 14 02 09.477 -12 55 47.61 23.3r 500832 568 C~1XRW 2013 05 11.41001 13 59 28.459 -12 37 45.14 24.1r 500832 568 C~1XRW 2013 05 12.41142 13 59 23.839 -12 37 13.39 23.8r 500832 568 C~1XRW 2013 06 13.24964 13 57 25.330 -12 22 49.86 23.9r 500832 568 C~1XRW 2013 06 13.29009 13 57 25.223 -12 22 48.97 24.0r 500832 568 C~1XRW 2014 02 24.56234 14 13 00.534 -13 16 49.33 23.6r 500832 568 C~1XRW 2014 02 25.53194 14 12 58.770 -13 16 33.52 24.2r 500832 568 C~1XRW 2014 02 27.64280 14 12 54.590 -13 15 57.71 23.9r 500832 568 C~1XRW 2014 03 28.43390 14 11 20.390 -13 04 34.14 23.8r 500832 568 C~1XRW 2014 03 28.47295 14 11 20.223 -13 04 33.04 23.8r 500832 568 C~1XRW 2014 04 05.40246 14 10 44.849 -13 00 35.00 23.9r 500832 568 C~1XRW 2014 05 22.38158 14 06 58.462 -12 35 35.80 23.9r 500832 568 C~1XRW 2014 05 28.36997 14 06 33.683 -12 32 46.18 23.7r 500832 568 C~1XRW 2014 06 26.31711 14 05 09.603 -12 22 17.71 23.9r 500832 568 C~1XRW 2014 07 18.28369 14 04 56.203 -12 18 51.73 23.8r 500832 568 C~1XRW 2015 01 26.61744 14 21 24.901 -13 22 41.56 23.8r 500832 568 C~1XRW 2015 01 26.63271 14 21 24.912 -13 22 41.47 23.9r 500832 568 C~1XRW 2015 03 21.61206 14 20 17.069 -13 09 56.87 23.9r 500832 568 C~2KOF 2016 05 05.32208 14 25 21.502 -12 47 53.34 23.5r 500832 568 C~2KOF 2016 05 05.39771 14 25 21.107 -12 47 51.07 23.5r 500832 568 C~2KOF 2016 05 05.40175 14 25 21.087 -12 47 50.89 23.7r 500832 568 C~2KOF 2016 05 29.34785 14 23 28.026 -12 36 04.23 23.9w 500832 568 C~2KOF 2017 02 23.64413 14 38 37.304 -13 20 00.87 500832 568 C~2KOF 2017 02 24.65456 14 38 36.173 -13 19 45.13 500832 568 C~2KOF 2017 03 27.64565 14 37 13.907 -13 08 12.73 500832 568 C~2KOF 2017 03 30.53104 14 37 02.258 -13 06 51.31 500832 568 C~2KOF 2017 05 21.34842 14 32 49.141 -12 40 19.58 500832 568 C~2KOF 2017 05 24.27564 14 32 35.408 -12 38 57.28 500832 568 C~2KOF 2017 05 24.35116 14 32 35.069 -12 38 55.02 500832 568 C~2KOF 2023 06 15.190560 15 25 43.122 -12 09 06.92 23.7G 500832 G37 C~6wSS 2023 06 15.234110 15 25 42.925 -12 09 06.00 500832 G37 C~6wSS
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 -0.05 0.00 -0.17
2 0.0001 0.00 -0.03 0.00 -0.05
3 0.0002 0.00 -0.05 0.00 0.14
4 0.0059 0.00 0.06 0.00 -0.08
5 0.0109 0.00 0.21 0.00 0.09
6 0.1013 0.00 0.04 0.00 0.05
7 0.1041 0.00 -0.00 0.00 0.06
8 0.1912 0.00 -0.01 0.00 -0.04
9 0.1913 0.00 0.02 0.00 -0.01
10 0.8930 0.00 -0.08 0.00 -0.17
11 0.8956 0.00 -0.02 0.00 -0.06
12 0.9014 0.00 0.02 0.00 -0.06
13 0.9802 0.00 -0.06 0.00 0.08
14 0.9803 0.00 -0.01 0.00 0.05
15 1.0020 0.00 0.04 0.00 0.30
16 1.1307 0.00 -0.03 0.00 0.03
17 1.1471 0.00 -0.06 0.00 0.07
18 1.2263 0.00 0.07 0.00 0.07
19 1.2865 0.00 0.03 0.00 0.30
20 1.8130 0.00 0.05 0.00 -0.00
21 1.8131 0.00 -0.13 0.00 0.09
22 1.9609 0.00 -0.07 0.00 0.08
23 3.0853 0.00 0.07 0.00 -0.18
24 3.0855 0.00 -0.00 0.00 -0.30
25 3.0855 0.00 0.01 0.00 -0.24
26 3.1511 0.00 -0.19 0.00 -0.07
27 3.8911 0.00 -0.02 0.00 -0.15
28 3.8939 0.00 -0.06 0.00 -0.10
29 3.9788 0.00 0.11 0.00 -0.05
30 3.9867 0.00 -0.06 0.00 -0.02
31 4.1285 0.00 -0.05 0.00 0.05
32 4.1365 0.00 -0.02 0.00 -0.02
33 4.1367 0.00 0.24 0.00 0.15
34 10.1952 0.00 -0.01 0.00 0.02
35 10.1953 0.00 -0.00 0.00 0.17
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.
500832 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 85.612 85.610 85.613 ecceobj 0.605 0.605 0.605 incobj 18.414 18.414 18.414 qmin 32.049 32.136 32.250 qmax 144.254 164.926 145.067 amean 81.814 89.027 86.117 amin 75.668 83.393 83.242 amax 88.712 99.199 89.199 emean 0.590 0.623 0.610 emin 0.549 0.588 0.589 emax 0.626 0.663 0.626 imean 18.200 18.001 18.279 imin 16.595 16.594 16.994 imax 19.950 19.757 19.798 excite_mean 0.668 0.696 0.686 fracstop 1.000 1.000 1.000 cjmean 2.895 2.894 2.894 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 147.6 183.8 180.3 kozaiamp 180.0 179.9 180.0