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: 528381 # Created Fri Apr 26 01:08:34 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 112 observations of 112 # Arc: 15.12y # First observation: 2008/09/24 # Last observation: 2023/11/08 # Chi-squared of fit: 175.63 DOF: 218 RMS: 0.22 # Min/Max residuals: -0.80 1.05 # Exact a, adot, b, bdot, g, gdot: 8.771908E-06 1.555366E-02 5.270327E-06 4.702139E-03 1.794765E-02 7.561763E-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 12.458676 5.994227 0.076102 0.215493 -0.975300 2454733.671394 # Heliocentric elements and errors Epoch: 2454734.5000 = 2008/09/25 Mean Anomaly: 19.31229 +/- 0.000 Argument of Peri: 324.99326 +/- 0.000 Long of Asc Node: 330.97281 +/- 0.000 Inclination: 20.74852 +/- 0.000 Eccentricity: 0.57764641 +/- 0.0000 Semi-Major Axis: 100.46204474 +/- 0.0000 Time of Perihelion: 2435004.2410 +/- 0.0 Perihelion: 42.43050540 +/- 0.0000 Aphelion: 158.49358408 +/- 0.0000 Period (y) 1006.9577 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 55.11082957 +/- 0.0000 Ecliptic Y 5.70581145 +/- 0.0000 Ecliptic Z 12.02057610 +/- 0.0000 Ecliptic XDOT 0.00072464 +/- 0.0000 Ecliptic YDOT 0.00246320 +/- 0.0000 Ecliptic ZDOT 0.00094914 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 56.69402155 +/- 0.0000 Geocenter to KBO 55.71725794 +/- 0.0000 # Hcoef: 4.20
The following table shows the complete astrometric record for 528381. 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 (528381) followed by the observatory code and reference code for the source of the astrometry.
2008 09 24.17064 00 01 49.60 +13 47 51.7 21.5R 528381 675 C~0BHs 2008 09 24.31175 00 01 49.01 +13 47 48.8 22.1R 528381 675 C~0BHs 2008 09 25.16143 00 01 46.03 +13 47 32.2 21.1R 528381 675 C~0BHs 2008 09 25.20268 00 01 45.87 +13 47 32.3 21.5R 528381 675 C~0BHs 2008 10 07.11526 00 01 04.45 +13 43 27.4 528381 675 C~0BHs 2008 10 29.325628 23 59 55.36 +13 35 05.7 21.6V 528381 645 C~1Fih 2008 10 29.326457 23 59 55.36 +13 35 05.7 21.3V 528381 645 C~1Fih 2008 10 29.328945 23 59 55.35 +13 35 05.7 22.5V 528381 645 C~1Fih 2008 11 19.07748 23 59 09.11 +13 27 37.1 528381 675 C~0BHs 2008 11 19.33084 23 59 08.65 +13 27 32.5 528381 675 C~0BHs 2009 06 28.39402 00 07 53.54 +14 25 55.8 528381 675 C~0BHs 2009 06 29.39168 00 07 53.67 +14 26 13.5 528381 675 C~0BHs 2009 06 30.38845 00 07 53.73 +14 26 31.4 528381 675 C~0BHs 2009 07 02.47729 00 07 53.67 +14 27 06.9 528381 675 C~0BHs 2009 07 07.46522 00 07 52.35 +14 28 24.4 528381 675 C~0BHs 2009 07 31.30379 00 07 24.73 +14 31 58.7 528381 675 C~0BHs 2009 07 31.40035 00 07 24.54 +14 31 58.7 528381 675 C~0BHs 2009 07 31.49606 00 07 24.34 +14 32 00.0 528381 675 C~0BHs 2009 08 15.41042 00 06 50.86 +14 31 56.6 528381 675 C~0BHs 2009 08 16.35636 00 06 48.43 +14 31 52.9 528381 675 C~0BHs 2009 10 11.39312 00 03 44.51 +14 18 15.3 528381 675 C~0BHs 2009 10 11.44477 00 03 44.35 +14 18 14.2 528381 675 C~0BHs 2009 10 18.22399 00 03 22.35 +14 15 42.0 528381 568 C~0BHs 2009 10 18.25466 00 03 22.25 +14 15 41.3 528381 568 C~0BHs 2010 09 18.47813 00 07 56.508 +15 01 26.63 22.1G 528381 F51 C~2r7I 2010 09 18.49014 00 07 56.484 +15 01 26.23 21.2G 528381 F51 C~2r7I 2010 10 09.11773 00 06 45.04 +14 54 49.4 21.5R 528381 688 C~0NmC 2010 10 09.18404 00 06 44.81 +14 54 47.0 528381 688 C~0NmC 2011 09 19.35933 00 10 44.624 +15 36 10.39 21.5G 528381 F51 C~2r7I 2011 09 19.36990 00 10 44.604 +15 36 10.48 21.6G 528381 F51 C~2r7I 2011 09 19.38334 00 10 44.538 +15 36 10.15 21.8G 528381 F51 C~2r7I 2011 09 19.39491 00 10 44.498 +15 36 10.03 22.0G 528381 F51 C~2r7I 2011 10 19.26903 00 09 03.099 +15 26 10.65 21.8G 528381 F51 C~2r7I 2011 10 19.28289 00 09 03.051 +15 26 10.23 21.6G 528381 F51 C~2r7I 2011 10 19.29677 00 09 03.018 +15 26 09.91 21.8G 528381 F51 C~2r7I 2011 10 19.31269 00 09 02.964 +15 26 09.51 22.0G 528381 F51 C~2r7I 2012 08 12.60662 00 15 24.389 +16 15 53.91 22.2G 528381 F51 C~2r7I 2012 10 08.29977 00 12 25.325 +16 04 16.38 21.9G 528381 F51 C~2r7I 2012 10 08.31430 00 12 25.280 +16 04 16.18 21.8G 528381 F51 C~2r7I 2012 10 08.32881 00 12 25.228 +16 04 15.78 21.7G 528381 F51 C~2r7I 2012 10 08.34335 00 12 25.174 +16 04 15.49 21.7G 528381 F51 C~2r7I 2013 10 25.42451 00 14 18.055 +16 31 46.01 22.3G 528381 F51 C~2r7I 2013 10 25.43572 00 14 18.023 +16 31 45.61 21.9G 528381 F51 C~2r7J 2014 09 19.51181 00 19 03.375 +17 16 52.04 21.7G 528381 F51 C~2r7J 2014 09 19.52438 00 19 03.327 +17 16 51.81 22.0G 528381 F51 C~2r7J 2014 09 19.53648 00 19 03.287 +17 16 51.65 22.0G 528381 F51 C~2r7J 2014 09 19.54858 00 19 03.244 +17 16 51.44 21.8G 528381 F51 C~2r7J 2014 10 02.30874 00 18 19.443 +17 13 09.69 21.2G 528381 F51 C~2r7J 2014 10 02.32064 00 18 19.392 +17 13 09.55 21.8G 528381 F51 C~2r7J 2014 10 02.33251 00 18 19.361 +17 13 09.20 21.9G 528381 F51 C~2r7J 2014 10 02.34441 00 18 19.314 +17 13 09.05 20.9G 528381 F51 C~2r7J 2014 12 08.33821 00 15 35.785 +16 49 21.45 22.2G 528381 F51 C~2r7J 2015 08 01.50939 00 23 58.412 +17 53 11.08 21.2G 528381 F51 C~2r7J 2015 12 14.26694 00 18 14.188 +17 20 06.13 21.7G 528381 F51 C~2r7J 2015 12 14.27967 00 18 14.188 +17 20 05.85 22.3G 528381 F51 C~2r7J 2015 12 14.29230 00 18 14.178 +17 20 05.61 22.2G 528381 F51 C~2r7J 2015 12 14.30489 00 18 14.167 +17 20 05.51 22.2G 528381 F51 C~2r7J 2016 10 09.30366 00 23 19.248 +18 14 48.26 21.9G 528381 F51 C~2r7J 2016 10 09.31530 00 23 19.209 +18 14 48.10 22.0G 528381 F51 C~2r7J 2016 10 09.31595 00 23 19.210 +18 14 48.02 21.9G 528381 F51 C~2r7J 2016 10 09.32757 00 23 19.163 +18 14 47.48 22.1G 528381 F51 C~2r7J 2016 10 09.32821 00 23 19.181 +18 14 47.71 21.7G 528381 F51 C~2r7J 2016 10 09.33991 00 23 19.133 +18 14 47.68 22.8G 528381 F51 C~2r7J 2016 10 09.34056 00 23 19.125 +18 14 47.39 21.9G 528381 F51 C~2r7J 2016 11 06.38170 00 21 53.809 +18 04 24.10 22.4G 528381 F51 C~2r7J 2016 11 06.38299 00 21 53.800 +18 04 23.92 22.0G 528381 F51 C~2r7J 2016 11 06.39371 00 21 53.773 +18 04 23.64 22.1G 528381 F51 C~2r7J 2016 11 06.39499 00 21 53.776 +18 04 23.61 21.9G 528381 F51 C~2r7J 2016 11 06.40576 00 21 53.746 +18 04 23.39 22.1G 528381 F51 C~2r7J 2016 11 06.40704 00 21 53.749 +18 04 23.45 21.8G 528381 F51 C~2r7J 2016 11 06.41779 00 21 53.715 +18 04 23.06 22.3G 528381 F51 C~2r7J 2016 11 06.41908 00 21 53.709 +18 04 22.94 22.1G 528381 F51 C~2r7J 2017 08 15.45917 00 28 49.400 +18 56 00.48 22.0G 528381 F51 C~2r7J 2017 08 15.47086 00 28 49.375 +18 56 00.29 21.9G 528381 F51 C~2r7J 2017 08 15.48254 00 28 49.347 +18 56 00.08 21.7G 528381 F51 C~2r7J 2017 09 23.33988 00 26 54.80 +18 50 48.5 21.5R 528381 G37 C~2LR4 2017 09 23.43215 00 26 54.51 +18 50 46.9 528381 G37 C~2LR4 2017 09 30.33790 00 26 30.998 +18 48 51.21 21.2G 528381 F51 C~2r7J 2017 09 30.34887 00 26 30.962 +18 48 51.16 21.2G 528381 F51 C~2r7J 2017 09 30.35988 00 26 30.933 +18 48 50.70 528381 F51 C~2r7J 2017 09 30.37094 00 26 30.903 +18 48 50.44 22.1G 528381 F51 C~2r7J 2017 10 18.43759 00 25 30.450 +18 42 49.65 21.9G 528381 F51 C~2r7J 2017 10 18.44981 00 25 30.428 +18 42 49.53 21.7G 528381 F51 C~2r7J 2017 10 18.46207 00 25 30.412 +18 42 48.99 22.2G 528381 F51 C~2r7J 2017 12 31.26452 00 23 34.293 +18 18 56.35 22.3G 528381 F51 C~2r7J 2020 08 18.44237 00 36 32.729 +20 24 51.45 22.2w 528381 F51 C~46lC 2020 08 18.44756 00 36 32.720 +20 24 51.34 22.0w 528381 F51 C~46lC 2020 08 18.45466 00 36 32.707 +20 24 51.28 22.0w 528381 F51 C~46lC 2020 08 18.45981 00 36 32.708 +20 24 51.19 22.0w 528381 F51 C~46lC 2020 08 18.46693 00 36 32.666 +20 24 51.48 21.9w 528381 F51 C~46lC 2020 08 18.47208 00 36 32.656 +20 24 51.23 22.0w 528381 F51 C~46lC 2020 08 18.47921 00 36 32.651 +20 24 51.61 22.2w 528381 F51 C~46lC 2020 08 18.48437 00 36 32.631 +20 24 51.43 22.0w 528381 F51 C~46lC 2021 10 03.315697 00 36 51.589 +20 46 38.50 22.0w 528381 F52 C~59P9 2021 10 03.326487 00 36 51.570 +20 46 38.44 21.9w 528381 F52 C~59P9 2021 10 03.337240 00 36 51.523 +20 46 38.15 21.9w 528381 F52 C~59P9 2021 11 01.442888 00 35 18.471 +20 36 40.44 21.9w 528381 F51 C~5FZS 2021 11 01.455153 00 35 18.434 +20 36 40.10 22.3w 528381 F51 C~5FZS 2021 11 01.467395 00 35 18.383 +20 36 39.77 22.2w 528381 F51 C~5FZS 2021 11 01.479672 00 35 18.366 +20 36 39.83 22.0w 528381 F51 C~5FZS 2022 09 24.355814 00 39 57.448 +21 17 22.41 22.1w 528381 F52 C~5qdy 2022 09 24.367325 00 39 57.402 +21 17 22.23 21.9w 528381 F52 C~5qdy 2022 09 24.378883 00 39 57.360 +21 17 22.10 21.9w 528381 F52 C~5qdy 2023 09 18.349052 00 42 51.486 +21 46 26.94 22.1w 528381 F52 C~7MCk 2023 09 18.361850 00 42 51.465 +21 46 26.95 22.0w 528381 F52 C~7MCk 2023 09 18.374672 00 42 51.444 +21 46 26.68 22.0w 528381 F52 C~7MCk 2023 10 12.293345 00 41 32.407 +21 40 18.70 21.9w 528381 F52 C~7MCk 2023 10 12.319080 00 41 32.314 +21 40 18.00 21.7w 528381 F52 C~7MCk 2023 10 12.331890 00 41 32.273 +21 40 17.73 21.9w 528381 F52 C~7MCk 2023 11 08.220468 00 40 09.899 +21 30 43.54 22.0w 528381 F52 C~7WJP 2023 11 08.247756 00 40 09.833 +21 30 42.78 21.8w 528381 F52 C~7WJP 2023 11 08.261455 00 40 09.800 +21 30 42.32 22.1w 528381 F52 C~7WJP
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 1.05 0.00 0.20
2 0.0004 0.00 -0.24 0.00 -0.03
3 0.0027 0.00 -0.19 0.00 -0.35
4 0.0028 0.00 -0.39 0.00 0.54
5 0.0354 0.00 -0.80 0.00 0.36
6 0.0962 0.00 0.44 0.00 -0.38
7 0.0963 0.00 0.47 0.00 -0.36
8 0.0963 0.00 0.42 0.00 -0.30
9 0.1531 0.00 0.03 0.00 -0.58
10 0.1538 0.00 -0.39 0.00 -0.15
11 0.7590 0.00 -0.19 0.00 0.20
12 0.7617 0.00 -0.18 0.00 -0.11
13 0.7645 0.00 -0.25 0.00 0.20
14 0.7702 0.00 0.01 0.00 0.17
15 0.7838 0.00 -0.09 0.00 0.37
16 0.8491 0.00 -0.11 0.00 0.33
17 0.8494 0.00 -0.21 0.00 -0.01
18 0.8496 0.00 -0.46 0.00 0.96
19 0.8905 0.00 -0.59 0.00 0.05
20 0.8930 0.00 0.05 0.00 -0.01
21 1.0465 0.00 -0.00 0.00 0.13
22 1.0466 0.00 0.20 0.00 0.17
23 1.0652 0.00 -0.03 0.00 -0.26
24 1.0653 0.00 -0.06 0.00 -0.27
25 1.9830 0.00 0.06 0.00 -0.02
26 1.9831 0.00 0.34 0.00 -0.22
27 2.0396 0.00 -0.24 0.00 1.01
28 2.0397 0.00 -0.29 0.00 0.03
29 2.9848 0.00 0.07 0.00 -0.22
30 2.9848 0.00 0.32 0.00 0.04
31 2.9848 0.00 0.04 0.00 -0.07
32 2.9849 0.00 0.05 0.00 0.00
33 3.0667 0.00 0.06 0.00 0.00
34 3.0667 0.00 0.01 0.00 -0.11
35 3.0667 0.00 0.19 0.00 -0.12
36 3.0668 0.00 0.14 0.00 -0.16
37 3.8835 0.00 0.15 0.00 0.10
38 4.0387 0.00 0.03 0.00 -0.14
39 4.0387 0.00 0.10 0.00 -0.03
40 4.0388 0.00 0.07 0.00 -0.13
41 4.0388 0.00 0.01 0.00 -0.11
42 5.0849 0.00 -0.06 0.00 -0.01
43 5.0849 0.00 -0.03 0.00 -0.16
44 5.9859 0.00 0.13 0.00 -0.03
45 5.9859 0.00 0.06 0.00 -0.06
46 5.9859 0.00 0.09 0.00 -0.04
47 5.9860 0.00 0.07 0.00 -0.06
48 6.0209 0.00 -0.00 0.00 -0.14
49 6.0209 0.00 -0.14 0.00 -0.05
50 6.0210 0.00 0.01 0.00 -0.18
51 6.0210 0.00 -0.07 0.00 -0.10
52 6.2044 0.00 0.24 0.00 -0.07
53 6.8510 0.00 0.20 0.00 -0.13
54 7.2200 0.00 0.02 0.00 -0.00
55 7.2200 0.00 0.11 0.00 -0.08
56 7.2200 0.00 0.05 0.00 -0.12
57 7.2201 0.00 -0.02 0.00 -0.03
58 8.0414 0.00 -0.07 0.00 0.02
59 8.0415 0.00 -0.06 0.00 0.10
60 8.0415 0.00 -0.01 0.00 0.03
61 8.0415 0.00 -0.12 0.00 -0.28
62 8.0415 0.00 0.18 0.00 -0.03
63 8.0415 0.00 0.06 0.00 0.17
64 8.0415 0.00 -0.03 0.00 -0.10
65 8.1183 0.00 0.06 0.00 0.11
66 8.1183 0.00 -0.03 0.00 -0.04
67 8.1183 0.00 -0.01 0.00 -0.08
68 8.1183 0.00 0.09 0.00 -0.08
69 8.1184 0.00 0.06 0.00 -0.05
70 8.1184 0.00 0.16 0.00 0.04
71 8.1184 0.00 0.07 0.00 -0.10
72 8.1184 0.00 0.03 0.00 -0.19
73 8.8906 0.00 0.10 0.00 0.27
74 8.8906 0.00 0.13 0.00 0.07
75 8.8907 0.00 0.12 0.00 -0.14
76 8.9970 0.00 -0.13 0.00 0.36
77 8.9973 0.00 0.27 0.00 0.22
78 9.0162 0.00 -0.28 0.00 0.13
79 9.0162 0.00 -0.25 0.00 0.27
80 9.0163 0.00 -0.11 0.00 0.01
81 9.0163 0.00 0.02 0.00 -0.06
82 9.0658 0.00 -0.40 0.00 -0.13
83 9.0658 0.00 -0.13 0.00 0.02
84 9.0658 0.00 0.23 0.00 -0.25
85 9.2679 0.00 0.32 0.00 -0.06
86 11.8994 0.00 -0.02 0.00 0.04
87 11.8995 0.00 0.03 0.00 -0.07
88 11.8995 0.00 0.08 0.00 -0.13
89 11.8995 0.00 0.28 0.00 -0.23
90 11.8995 0.00 -0.10 0.00 0.06
91 11.8995 0.00 -0.07 0.00 -0.19
92 11.8995 0.00 0.10 0.00 0.18
93 11.8996 0.00 -0.01 0.00 0.00
94 13.0244 0.00 -0.22 0.00 -0.09
95 13.0244 0.00 0.04 0.00 0.03
96 13.0244 0.00 -0.11 0.00 -0.07
97 13.1041 0.00 0.07 0.00 -0.07
98 13.1041 0.00 0.05 0.00 -0.13
99 13.1042 0.00 -0.18 0.00 -0.18
100 13.1042 0.00 0.10 0.00 0.16
101 13.9991 0.00 0.23 0.00 0.10
102 13.9992 0.00 0.12 0.00 0.08
103 13.9992 0.00 0.07 0.00 0.11
104 14.9820 0.00 -0.45 0.00 0.00
105 14.9820 0.00 -0.15 0.00 0.15
106 14.9821 0.00 0.16 0.00 0.02
107 15.0476 0.00 0.07 0.00 0.24
108 15.0476 0.00 -0.03 0.00 0.02
109 15.0477 0.00 0.00 0.00 -0.01
110 15.1213 0.00 -0.33 0.00 0.26
111 15.1214 0.00 -0.21 0.00 0.11
112 15.1214 0.00 -0.14 0.00 -0.04
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.
528381 quality flag:3 Type: 6:1EEEEE 6:1EEEEE 6:1EEEEE axisobj 100.781 100.782 100.779 ecceobj 0.577 0.577 0.577 incobj 20.757 20.757 20.757 qmin 39.657 39.670 39.646 qmax 163.106 163.075 163.457 amean 99.419 99.419 99.418 amin 97.685 97.672 97.700 amax 101.921 102.018 102.008 emean 0.583 0.583 0.583 emin 0.564 0.564 0.564 emax 0.601 0.601 0.602 imean 20.574 20.579 20.569 imin 19.182 19.196 19.167 imax 22.114 22.114 22.114 excite_mean 0.681 0.681 0.681 fracstop 1.000 1.000 1.000 cjmean 3.066 3.066 3.066 libcent 0 85.2 84.7 84.4 libamp 0 46.7 47.6 46.4 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 307.3 303.3 312.6 kozaiamp 180.0 180.0 180.0