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: 591486 # Created Sun Dec 22 02:07:40 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 39 observations of 39 # Arc: 5.07y # First observation: 2013/10/04 # Last observation: 2018/10/28 # Chi-squared of fit: 13.20 DOF: 72 RMS: 0.10 # Min/Max residuals: -0.30 0.24 # Exact a, adot, b, bdot, g, gdot: 2.087497E-05 4.563620E-02 -1.096894E-06 -2.279595E-03 3.530270E-02 -5.049937E-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 -10.296959 23.595734 0.221558 -0.174264 -0.959810 2456569.702588 # Heliocentric elements and errors Epoch: 2456570.5000 = 2013/10/05 Mean Anomaly: 342.67066 +/- 0.000 Argument of Peri: 285.52938 +/- 0.000 Long of Asc Node: 129.56550 +/- 0.000 Inclination: 10.36891 +/- 0.000 Eccentricity: 0.28383612 +/- 0.0000 Semi-Major Axis: 39.54869137 +/- 0.0000 Time of Perihelion: 2460943.4669 +/- 0.0 Perihelion: 28.32334426 +/- 0.0000 Aphelion: 50.77403847 +/- 0.0000 Period (y) 248.7175 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 26.52202341 +/- 0.0000 Ecliptic Y 11.34634121 +/- 0.0000 Ecliptic Z -5.06341168 +/- 0.0000 Ecliptic XDOT -0.00180494 +/- 0.0000 Ecliptic YDOT 0.00307509 +/- 0.0000 Ecliptic ZDOT -0.00010380 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 29.28821227 +/- 0.0000 Geocenter to KBO 28.32654760 +/- 0.0000 # Hcoef: 8.33
The following table shows the complete astrometric record for 591486. 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 (591486) followed by the observatory code and reference code for the source of the astrometry.
2013 10 04.20181 01 42 29.56 -00 25 14.3 23.5g 591486 W84 C~3clR 2013 10 04.20181 01 42 29.555 -00 25 14.35 23.5g 591486 W84 C~4yRE 2014 10 01.33657 01 52 46.252 +00 26 57.88 23.2r 591486 W84 C~4yRE 2014 10 01.33794 01 52 46.245 +00 26 57.96 22.4i 591486 W84 C~4yRE 2014 10 03.32771 01 52 34.887 +00 25 36.77 23.6g 591486 W84 C~4yRE 2014 10 03.32907 01 52 34.874 +00 25 36.74 22.8r 591486 W84 C~4yRE 2014 10 23.27656 01 50 33.463 +00 12 50.36 22.7r 591486 W84 C~4yRE 2014 10 23.27793 01 50 33.451 +00 12 50.20 22.5i 591486 W84 C~4yRE 2014 11 28.12559 01 47 08.745 -00 01 59.73 22.0z 591486 W84 C~4yRE 2014 12 12.05597 01 46 13.205 -00 03 28.11 23.2r 591486 W84 C~4yRE 2015 11 20.13336 01 57 50.614 +00 50 19.04 22.5i 591486 W84 C~4yRE 2015 11 20.13475 01 57 50.607 +00 50 18.90 22.4z 591486 W84 C~4yRE 2015 12 29.13369 01 55 24.195 +00 47 46.84 22.5i 591486 W84 C~4yRE 2015 12 29.13643 01 55 24.190 +00 47 46.53 22.1z 591486 W84 C~4yRE 2016 01 12.05868 01 55 14.73 +00 52 02.4 23.6r 591486 W84 C~3clR 2016 09 09.40159 02 14 37.794 +02 21 55.81 22.9i 591486 W84 C~4yRE 2016 09 10.37651 02 14 34.251 +02 21 19.74 22.7r 591486 W84 C~4yRE 2016 09 10.37787 02 14 34.250 +02 21 19.73 23.6g 591486 W84 C~4yRE 2016 09 10.38614 02 14 34.208 +02 21 19.38 22.7z 591486 W84 C~4yRE 2016 10 22.23205 02 10 51.720 +01 54 25.91 22.6z 591486 W84 C~4yRE 2016 10 28.23296 02 10 13.570 +01 50 58.76 22.9r 591486 W84 C~4yRE 2016 10 28.23436 02 10 13.563 +01 50 58.65 22.6i 591486 W84 C~4yRE 2016 11 03.22984 02 09 35.488 +01 47 47.39 22.9r 591486 W84 C~4yRE 2016 11 03.23120 02 09 35.463 +01 47 47.36 22.8i 591486 W84 C~4yRE 2016 11 03.23258 02 09 35.448 +01 47 47.20 22.3z 591486 W84 C~4yRE 2016 11 27.12737 02 07 15.227 +01 38 35.33 22.4r 591486 W84 C~4yRE 2016 11 28.11753 02 07 10.118 +01 38 21.03 23.0g 591486 W84 C~4yRE 2017 01 21.22228 02 05 11.43 +01 45 42.6 22.7z 591486 T09 C~7loc 2017 01 21.27769 02 05 11.49 +01 45 44.3 22.7z 591486 T09 C~7loc 2017 01 21.30753 02 05 11.53 +01 45 45.1 23.0z 591486 T09 C~7loc 2017 01 23.26043 02 05 14.23 +01 46 44.8 24.0r 591486 T09 C~88rl 2017 01 23.27558 02 05 14.26 +01 46 45.3 24.0r 591486 T09 C~88rl 2017 01 23.29282 02 05 14.28 +01 46 45.8 23.9r 591486 T09 C~88rl 2017 01 26.23062 02 05 19.37 +01 48 20.7 24.2g 591486 T09 C~7loc 2017 01 26.26550 02 05 19.44 +01 48 21.7 24.0g 591486 T09 C~7loc 2017 01 26.29815 02 05 19.48 +01 48 22.9 24.0g 591486 T09 C~7loc 2017 09 18.31069 02 24 15.239 +03 07 01.41 22.5r 591486 W84 C~4yRE 2017 10 22.22461 02 21 09.078 +02 45 31.66 22.2z 591486 W84 C~4yRE 2018 10 28.26415 02 30 53.385 +03 33 11.63 22.2z 591486 W84 C~4yRE
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 -0.09 0.00 -0.02
2 0.0000 0.00 -0.01 0.00 0.03
3 0.9915 0.00 0.01 0.00 -0.05
4 0.9915 0.00 0.03 0.00 0.09
5 0.9969 0.00 -0.00 0.00 -0.05
6 0.9969 0.00 -0.08 0.00 -0.02
7 1.0515 0.00 0.03 0.00 0.03
8 1.0515 0.00 -0.01 0.00 -0.08
9 1.1497 0.00 0.09 0.00 0.14
10 1.1878 0.00 0.12 0.00 -0.04
11 2.1271 0.00 -0.02 0.00 0.11
12 2.1271 0.00 -0.01 0.00 -0.00
13 2.2339 0.00 0.07 0.00 0.04
14 2.2339 0.00 0.06 0.00 -0.30
15 2.2720 0.00 -0.02 0.00 0.12
16 2.9328 0.00 0.09 0.00 -0.03
17 2.9355 0.00 0.09 0.00 -0.08
18 2.9355 0.00 0.15 0.00 -0.04
19 2.9355 0.00 -0.01 0.00 -0.08
20 3.0500 0.00 0.06 0.00 0.05
21 3.0665 0.00 -0.03 0.00 -0.00
22 3.0665 0.00 0.00 0.00 -0.07
23 3.0829 0.00 0.14 0.00 -0.12
24 3.0829 0.00 -0.11 0.00 -0.11
25 3.0829 0.00 -0.20 0.00 -0.22
26 3.1483 0.00 -0.03 0.00 -0.11
27 3.1510 0.00 -0.14 0.00 -0.10
28 3.2992 0.00 0.02 0.00 0.08
29 3.2993 0.00 -0.02 0.00 0.13
30 3.2994 0.00 0.06 0.00 0.04
31 3.3047 0.00 -0.19 0.00 0.11
32 3.3048 0.00 -0.07 0.00 0.14
33 3.3048 0.00 -0.14 0.00 0.10
34 3.3129 0.00 0.14 0.00 0.24
35 3.3130 0.00 0.24 0.00 0.08
36 3.3131 0.00 -0.07 0.00 0.19
37 3.9565 0.00 -0.03 0.00 -0.04
38 4.0493 0.00 0.10 0.00 0.10
39 5.0652 0.00 0.03 0.00 -0.15
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.
591486 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.760 39.759 39.760 ecceobj 0.286 0.286 0.286 incobj 10.362 10.362 10.362 qmin 27.906 27.908 27.898 qmax 51.579 51.620 51.495 amean 39.455 39.455 39.455 amin 38.992 38.994 39.013 amax 39.995 39.998 39.978 emean 0.252 0.252 0.252 emin 0.186 0.186 0.186 emax 0.292 0.293 0.291 imean 10.792 10.791 10.787 imin 7.896 7.896 7.890 imax 14.573 14.572 14.573 excite_mean 0.316 0.316 0.316 fracstop 1.000 1.000 1.000 cjmean 2.938 2.938 2.938 libcent 0 180.6 180.4 180.5 libamp 0 80.1 79.9 79.8 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 255.6 255.8 256.1 kozaiamp 85.3 85.4 85.4