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: 577578 # Created Fri Nov 22 02:07:36 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 46 observations of 46 # Arc: 8.31y # First observation: 2013/03/07 # Last observation: 2021/06/30 # Chi-squared of fit: 27.32 DOF: 86 RMS: 0.14 # Min/Max residuals: -0.30 0.53 # Exact a, adot, b, bdot, g, gdot: 1.924849E-05 3.801354E-02 2.120910E-06 4.423834E-03 3.086676E-02 -5.286100E-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 -0.163943 -140.699587 0.783951 -0.001709 -0.609198 2456359.103668 # Heliocentric elements and errors Epoch: 2456358.5000 = 2013/03/07 Mean Anomaly: 342.36215 +/- 0.000 Argument of Peri: 35.52235 +/- 0.000 Long of Asc Node: 219.31272 +/- 0.000 Inclination: 6.67133 +/- 0.000 Eccentricity: 0.34164427 +/- 0.0000 Semi-Major Axis: 47.58676791 +/- 0.0000 Time of Perihelion: 2462232.9987 +/- 0.0 Perihelion: 31.32902146 +/- 0.0000 Aphelion: 63.84451435 +/- 0.0000 Period (y) 328.2748 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -26.03678328 +/- 0.0000 Ecliptic Y -20.29710514 +/- 0.0000 Ecliptic Z -0.09261468 +/- 0.0000 Ecliptic XDOT 0.00249133 +/- 0.0000 Ecliptic YDOT -0.00231224 +/- 0.0000 Ecliptic ZDOT 0.00039387 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.01366134 +/- 0.0000 Geocenter to KBO 32.39742106 +/- 0.0000 # Hcoef: 7.39
The following table shows the complete astrometric record for 577578. 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 (577578) followed by the observatory code and reference code for the source of the astrometry.
2013 03 07.60289 14 27 24.291 -14 44 53.37 22.3r 577578 568 C~1XRW 2013 04 04.54664 14 25 30.072 -14 34 26.45 22.7r 577578 568 C~1XRW 2013 04 07.40716 14 25 15.362 -14 33 06.85 22.7r 577578 568 C~1XRW 2013 04 07.45089 14 25 15.127 -14 33 05.69 22.6r 577578 568 C~1XRW 2013 04 08.43954 14 25 09.938 -14 32 37.75 22.4r 577578 568 C~1XRW 2013 04 08.48474 14 25 09.710 -14 32 36.50 22.4r 577578 568 C~1XRW 2013 04 09.38613 14 25 04.945 -14 32 10.69 22.7r 577578 568 C~1XRW 2013 04 09.42936 14 25 04.721 -14 32 09.49 22.6r 577578 568 C~1XRW 2013 04 09.47254 14 25 04.488 -14 32 08.30 22.8r 577578 568 C~1XRW 2013 05 11.47420 14 22 05.092 -14 15 56.26 22.6r 577578 568 C~1XRW 2013 06 12.37153 14 19 34.135 -14 01 53.33 577578 568 C~1XRW 2013 06 12.41652 14 19 33.968 -14 01 52.43 22.8r 577578 568 C~1XRW 2013 08 02.26651 14 18 41.651 -13 55 08.18 23.0r 577578 568 C~1XRW 2013 08 05.26716 14 18 47.622 -13 55 30.05 23.0r 577578 568 C~1XRW 2014 02 01.63271 14 36 43.724 -15 14 56.90 22.8r 577578 568 C~1XRW 2014 02 02.63050 14 36 45.063 -15 15 00.36 22.9r 577578 568 C~1XRW 2014 02 03.57515 14 36 46.213 -15 15 03.16 22.9r 577578 568 C~1XRW 2014 02 25.59980 14 36 41.873 -15 13 41.83 23.0r 577578 568 C~1XRW 2014 04 04.45085 14 34 32.009 -15 01 43.73 22.6r 577578 568 C~1XRW 2014 04 04.49069 14 34 31.806 -15 01 42.70 22.8r 577578 568 C~1XRW 2014 04 05.57974 14 34 26.343 -15 01 13.82 22.8r 577578 568 C~1XRW 2014 05 22.42509 14 30 06.242 -14 38 23.46 22.7r 577578 568 C~1XRW 2014 05 25.35772 14 29 51.028 -14 37 02.39 22.5r 577578 568 C~1XRW 2014 06 26.34615 14 27 43.560 -14 25 24.60 22.8r 577578 568 C~1XRW 2014 07 18.30910 14 27 12.350 -14 22 00.89 22.8r 577578 568 C~1XRW 2014 07 18.31323 14 27 12.350 -14 22 00.87 22.9r 577578 568 C~1XRW 2015 01 26.61229 14 45 25.555 -15 39 25.86 22.9r 577578 568 C~1XRW 2015 04 18.40695 14 42 29.148 -15 21 41.54 22.6r 577578 568 C~2KOF 2015 04 20.42535 14 42 17.865 -15 20 44.02 22.4r 577578 568 C~2KOF 2015 04 20.43040 14 42 17.866 -15 20 43.92 24.6u 577578 568 C~2KOF 2015 04 20.46573 14 42 17.630 -15 20 42.88 22.5r 577578 568 C~2KOF 2018 04 11.37739 15 11 24.889 -16 36 25.10 22.3r 577578 G83 C~4tyt 2018 04 11.38577 15 11 24.855 -16 36 24.90 22.2r 577578 G83 C~4tyt 2020 04 02.22797 15 31 31.74 -17 19 55.2 21.4G 577578 X01 C~3xqi 2020 04 02.27395 15 31 31.51 -17 19 54.3 21.5G 577578 X01 C~3xqi 2020 04 22.19109 15 29 55.99 -17 12 43.5 21.6G 577578 X01 C~3xqi 2020 04 22.27133 15 29 55.58 -17 12 40.8 21.7G 577578 X01 C~3xqi 2020 05 19.20526 15 27 16.65 -17 01 39.6 577578 G37 C~3zkX 2020 05 19.26321 15 27 16.30 -17 01 38.2 577578 G37 C~3zkX 2020 05 19.36515 15 27 15.67 -17 01 35.7 577578 G37 C~3zkX 2021 06 14.272360 15 34 42.138 -17 10 51.20 22.2w 577578 F51 C~4qJv 2021 06 14.294794 15 34 42.015 -17 10 51.13 22.1w 577578 F51 C~4qJv 2021 06 14.306014 15 34 41.934 -17 10 50.80 22.4w 577578 F51 C~4qJv 2021 06 30.308932 15 33 27.588 -17 06 25.79 22.6w 577578 F51 C~4qJv 2021 06 30.320295 15 33 27.546 -17 06 25.58 22.4w 577578 F51 C~4qJv 2021 06 30.343027 15 33 27.454 -17 06 25.14 22.3w 577578 F51 C~4qJv
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 0.06 0.00 0.01
2 0.0765 0.00 0.07 0.00 0.02
3 0.0843 0.00 0.03 0.00 0.05
4 0.0845 0.00 -0.00 0.00 -0.02
5 0.0872 0.00 -0.11 0.00 -0.07
6 0.0873 0.00 0.11 0.00 -0.10
7 0.0898 0.00 -0.04 0.00 -0.03
8 0.0899 0.00 0.11 0.00 -0.06
9 0.0900 0.00 0.12 0.00 -0.11
10 0.1776 0.00 -0.03 0.00 0.02
11 0.2649 0.00 -0.06 0.00 0.08
12 0.2651 0.00 -0.05 0.00 0.03
13 0.4043 0.00 -0.01 0.00 0.02
14 0.4125 0.00 0.03 0.00 0.07
15 0.9063 0.00 -0.11 0.00 -0.02
16 0.9090 0.00 -0.07 0.00 0.06
17 0.9116 0.00 -0.15 0.00 0.06
18 0.9719 0.00 -0.04 0.00 0.04
19 1.0756 0.00 -0.07 0.00 -0.02
20 1.0757 0.00 -0.08 0.00 -0.04
21 1.0786 0.00 -0.06 0.00 -0.03
22 1.2069 0.00 0.11 0.00 -0.02
23 1.2149 0.00 0.07 0.00 0.02
24 1.3025 0.00 0.01 0.00 -0.03
25 1.3626 0.00 0.02 0.00 -0.11
26 1.3627 0.00 0.04 0.00 -0.10
27 1.8891 0.00 0.07 0.00 -0.02
28 2.1131 0.00 -0.09 0.00 0.04
29 2.1186 0.00 -0.10 0.00 0.00
30 2.1186 0.00 0.35 0.00 -0.04
31 2.1187 0.00 -0.16 0.00 -0.01
32 5.0945 0.00 -0.10 0.00 0.21
33 5.0945 0.00 0.03 0.00 0.21
34 7.0708 0.00 0.45 0.00 0.18
35 7.0710 0.00 -0.17 0.00 0.21
36 7.1255 0.00 -0.08 0.00 -0.27
37 7.1257 0.00 0.48 0.00 0.53
38 7.1995 0.00 -0.10 0.00 -0.03
39 7.1996 0.00 -0.01 0.00 -0.04
40 7.1999 0.00 -0.06 0.00 -0.04
41 8.2701 0.00 0.07 0.00 0.09
42 8.2702 0.00 0.02 0.00 -0.26
43 8.2702 0.00 -0.30 0.00 -0.15
44 8.3140 0.00 -0.12 0.00 -0.19
45 8.3141 0.00 -0.05 0.00 -0.14
46 8.3141 0.00 -0.03 0.00 -0.02
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.
577578 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 47.383 47.383 47.383 ecceobj 0.340 0.340 0.340 incobj 6.679 6.679 6.679 qmin 30.611 30.611 30.611 qmax 65.880 65.878 65.882 amean 47.797 47.797 47.797 amin 47.169 47.169 47.169 amax 48.563 48.564 48.563 emean 0.318 0.318 0.318 emin 0.274 0.274 0.274 emax 0.359 0.359 0.359 imean 10.750 10.745 10.751 imin 7.246 7.246 7.246 imax 13.702 13.693 13.703 excite_mean 0.371 0.371 0.371 fracstop 1.000 1.000 1.000 cjmean 2.974 2.974 2.974 libcent 0 281.4 281.3 281.4 libamp 0 42.4 42.6 42.4 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 61.3 62.9 61.5 kozaiamp 180.0 180.0 180.0