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: 15BC519 # Created Sun Dec 22 02:10:16 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 92 observations of 92 # Arc: 12.82y # First observation: 2011/01/25 # Last observation: 2023/11/19 # Chi-squared of fit: 66.36 DOF: 178 RMS: 0.15 # Min/Max residuals: -0.47 0.73 # Exact a, adot, b, bdot, g, gdot: 1.678531E-05 2.976305E-02 -7.054291E-07 -1.265306E-04 2.681533E-02 -9.334191E-03 # Covariance matrix: 2.1195E-13 -5.6983E-14 -5.0634E-16 1.8063E-16 -1.0060E-14 -9.3706E-14 -5.6983E-14 1.7902E-14 1.5011E-16 -6.3350E-17 7.8941E-15 3.2391E-14 -5.0634E-16 1.5011E-16 6.5844E-14 -8.2617E-15 -2.1760E-16 2.6104E-16 1.8063E-16 -6.3350E-17 -8.2617E-15 1.3196E-15 -5.4490E-17 -1.2645E-16 -1.0060E-14 7.8941E-15 -2.1760E-16 -5.4490E-17 6.1904E-14 2.1894E-14 -9.3706E-14 3.2391E-14 2.6104E-16 -1.2645E-16 2.1894E-14 6.3992E-14 # lat0 lon0 xBary yBary zBary JD0 -1.753631 113.603723 -0.195047 -0.029614 -0.967405 2455586.820786 # Heliocentric elements and errors Epoch: 2455586.5000 = 2011/01/25 Mean Anomaly: 333.89666 +/- 0.003 Argument of Peri: 324.56378 +/- 0.004 Long of Asc Node: 211.13735 +/- 0.002 Inclination: 1.72317 +/- 0.000 Eccentricity: 0.41579742 +/- 0.0000 Semi-Major Axis: 55.34116321 +/- 0.0034 Time of Perihelion: 2466489.9633 +/- 12.9 Perihelion: 32.33045052 +/- 0.0025 Aphelion: 78.35187591 +/- 0.0050 Period (y) 411.6998 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -15.48777057 +/- 0.0001 Ecliptic Y 34.96408599 +/- 0.0003 Ecliptic Z -1.14125366 +/- 0.0000 Ecliptic XDOT -0.00240403 +/- 0.0000 Ecliptic YDOT -0.00208391 +/- 0.0000 Ecliptic ZDOT 0.00001626 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.25802017 +/- 0.0003 Geocenter to KBO 37.29233834 +/- 0.0003 # Hcoef: 6.70
The following table shows the complete astrometric record for 15BC519. 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 (15BC519) followed by the observatory code and reference code for the source of the astrometry.
2011 01 25.32002 07 40 35.638 +19 38 54.94 22.5G 15BC519 F51 C~2rYL 2011 01 29.34980 07 40 13.908 +19 39 49.81 21.8G 15BC519 F51 C~2rYL 2012 01 26.49855 07 47 41.732 +19 20 42.91 22.9G 15BC519 F51 C~2rYL 2012 02 01.53600 07 47 09.146 +19 22 11.44 22.1G 15BC519 F51 C~2rYL 2012 04 09.25635 07 43 58.608 +19 32 36.96 22.1G 15BC519 F51 C~2rYL 2012 05 08.27193 07 45 00.108 +19 31 19.46 22.5G 15BC519 F51 C~2rYL 2013 01 17.47607 07 55 45.787 +18 58 41.80 22.3G 15BC519 F51 C~2rYL 2013 02 10.40882 07 53 36.855 +19 04 51.92 22.3w 15BC519 F51 C~1vYC 2013 02 10.42420 07 53 36.789 +19 04 52.10 22.3w 15BC519 F51 C~1vYC 2013 02 10.43966 07 53 36.701 +19 04 52.59 22.5w 15BC519 F51 C~1vYC 2013 02 10.45509 07 53 36.627 +19 04 52.55 22.2w 15BC519 F51 C~1vYC 2013 12 31.55612 08 04 44.546 +18 32 43.96 22.1w 15BC519 F51 C~1vYC 2013 12 31.57072 08 04 44.494 +18 32 44.00 22.4w 15BC519 F51 C~1vYC 2013 12 31.58531 08 04 44.394 +18 32 44.40 22.4w 15BC519 F51 C~1vYC 2014 02 26.39632 07 59 47.829 +18 47 41.85 22.5w 15BC519 F51 C~1vYC 2014 02 26.42238 07 59 47.707 +18 47 42.46 22.2w 15BC519 F51 C~1vYC 2014 02 26.43540 07 59 47.657 +18 47 42.22 22.5w 15BC519 F51 C~1vYC 2014 10 28.58634 08 15 01.110 +18 03 10.11 22.6G 15BC519 F51 C~2rYL 2015 01 16.52663 08 10 49.501 +18 13 48.96 22.3w 15BC519 F51 C~1vYC 2015 01 16.53888 08 10 49.428 +18 13 49.24 22.3w 15BC519 F51 C~1vYC 2015 01 16.55114 08 10 49.358 +18 13 49.56 22.4w 15BC519 F51 C~1vYC 2015 01 16.56344 08 10 49.294 +18 13 49.66 22.4w 15BC519 F51 C~1vYC 2015 02 16.28305 08 08 02.866 +18 22 43.65 22.1G 15BC519 F51 C~2rYL 2015 02 16.29535 08 08 02.811 +18 22 43.42 23.2G 15BC519 F51 C~2rYL 2015 02 17.28279 08 07 58.002 +18 22 59.71 23.0G 15BC519 F51 C~2rYL 2015 02 17.29512 08 07 57.957 +18 22 59.96 22.7w 15BC519 F51 C~1vYC 2015 02 17.30752 08 07 57.908 +18 23 00.33 22.4w 15BC519 F51 C~1vYC 2015 02 17.31996 08 07 57.809 +18 23 00.59 22.6w 15BC519 F51 C~1vYC 2015 03 16.37792 08 06 14.184 +18 29 10.58 22.4w 15BC519 F51 C~1vYC 2015 03 16.39020 08 06 14.154 +18 29 10.58 22.6w 15BC519 F51 C~1vYC 2015 03 16.40241 08 06 14.109 +18 29 10.90 22.7w 15BC519 F51 C~1vYC 2015 03 17.34182 08 06 11.679 +18 29 20.56 22.7w 15BC519 F51 C~1vYC 2015 03 17.35424 08 06 11.641 +18 29 20.74 22.5w 15BC519 F51 C~1vYC 2015 03 17.36674 08 06 11.613 +18 29 21.10 22.4w 15BC519 F51 C~1vYC 2015 03 17.37928 08 06 11.582 +18 29 20.95 22.2w 15BC519 F51 C~1vYC 2015 04 10.29593 08 05 40.704 +18 31 59.99 22.5G 15BC519 F51 C~2rYL 2016 01 07.38714 08 19 17.613 +17 46 31.78 21.7G 15BC519 F51 C~2rYL 2016 01 07.39960 08 19 17.568 +17 46 31.97 22.1G 15BC519 F51 C~2rYL 2016 01 07.41203 08 19 17.502 +17 46 32.21 22.5G 15BC519 F51 C~2rYL 2016 01 07.42452 08 19 17.425 +17 46 32.38 22.5G 15BC519 F51 C~2rYL 2016 01 29.50892 08 17 14.361 +17 53 13.05 22.5G 15BC519 F51 C~2rYL 2016 02 09.32322 08 16 15.121 +17 56 33.90 22.0G 15BC519 F51 C~2rYL 2016 02 09.33552 08 16 15.034 +17 56 34.49 22.5G 15BC519 F51 C~2rYL 2016 02 09.34776 08 16 14.966 +17 56 34.49 22.1G 15BC519 F51 C~2rYL 2016 02 09.35993 08 16 14.898 +17 56 34.76 22.2G 15BC519 F51 C~2rYL 2016 02 11.27991 08 16 04.778 +17 57 09.78 22.4G 15BC519 F51 C~2rYL 2016 02 11.29157 08 16 04.711 +17 57 09.99 22.2G 15BC519 F51 C~2rYL 2016 02 11.30348 08 16 04.646 +17 57 10.28 21.9G 15BC519 F51 C~2rYL 2016 02 11.31512 08 16 04.589 +17 57 10.26 22.4G 15BC519 F51 C~2rYL 2016 03 03.23622 08 14 27.259 +18 02 57.97 21.9G 15BC519 F51 C~2rYL 2016 03 03.24788 08 14 27.210 +18 02 58.47 21.9G 15BC519 F51 C~2rYL 2016 03 03.26137 08 14 27.166 +18 02 58.61 22.5G 15BC519 F51 C~2rYL 2016 03 03.27304 08 14 27.111 +18 02 58.88 22.5G 15BC519 F51 C~2rYL 2016 04 21.26176 08 13 12.703 +18 09 08.64 22.2G 15BC519 F51 C~2rYL 2016 11 08.54969 08 30 02.070 +17 11 43.50 21.9G 15BC519 F51 C~2rYL 2016 11 08.56198 08 30 02.046 +17 11 43.61 22.8G 15BC519 F51 C~2rYL 2016 11 08.57431 08 30 02.072 +17 11 43.64 22.2G 15BC519 F51 C~2rYL 2016 11 08.58672 08 30 02.070 +17 11 43.58 22.3G 15BC519 F51 C~2rYL 2017 01 28.48652 08 24 57.866 +17 27 14.61 22.4G 15BC519 F51 C~2rYL 2017 01 28.49939 08 24 57.792 +17 27 14.85 22.0G 15BC519 F51 C~2rYL 2017 01 28.51233 08 24 57.721 +17 27 15.10 22.3G 15BC519 F51 C~2rYL 2017 01 28.52527 08 24 57.646 +17 27 15.44 22.2G 15BC519 F51 C~2rYL 2017 02 18.23777 08 23 06.323 +17 33 55.51 23.2G 15BC519 F51 C~2rYL 2017 02 18.25022 08 23 06.257 +17 33 55.67 22.8G 15BC519 F51 C~2rYL 2017 02 18.26265 08 23 06.189 +17 33 56.07 22.2G 15BC519 F51 C~2rYL 2017 02 18.28046 08 23 06.093 +17 33 56.35 22.2G 15BC519 F51 C~2rYL 2017 02 27.27840 08 22 23.873 +17 36 35.02 22.2G 15BC519 F51 C~2rYL 2017 12 12.51073 08 36 39.190 +16 46 19.22 22.7G 15BC519 F51 C~2rYL 2017 12 14.51444 08 36 32.022 +16 46 41.53 22.4G 15BC519 F51 C~2rYL 2017 12 23.61921 08 35 55.163 +16 48 40.17 21.9G 15BC519 F51 C~2rYL 2020 01 25.52270 08 48 55.972 +15 58 45.11 22.2w 15BC519 F51 C~3cqt 2020 01 25.53613 08 48 55.905 +15 58 45.47 22.3w 15BC519 F51 C~3cqt 2020 01 25.54955 08 48 55.830 +15 58 45.77 22.0w 15BC519 F51 C~3cqt 2020 01 26.36497 08 48 51.228 +15 59 04.01 22.0w 15BC519 F51 C~3cqt 2020 01 26.38961 08 48 51.099 +15 59 04.68 22.0w 15BC519 F51 C~3cqt 2020 01 26.40213 08 48 51.025 +15 59 04.95 22.0w 15BC519 F51 C~3cqt 2020 12 11.50217 09 00 20.050 +15 13 26.09 22.0w 15BC519 F51 C~4NvK 2020 12 11.51314 09 00 20.010 +15 13 26.12 22.1w 15BC519 F51 C~4NvK 2020 12 11.52415 09 00 19.975 +15 13 26.15 22.4w 15BC519 F51 C~4NvK 2020 12 11.53514 09 00 19.961 +15 13 26.45 22.2w 15BC519 F51 C~4NvK 2022 02 21.301331 09 02 33.279 +15 03 45.72 21.8w 15BC519 F52 C~5S4l 2022 02 21.323075 09 02 33.158 +15 03 46.27 21.9w 15BC519 F52 C~5S4l 2022 02 21.334028 09 02 33.105 +15 03 46.57 21.9w 15BC519 F52 C~5S4l 2022 03 02.131900 09 01 48.334 +15 07 10.63 22.0G 15BC519 G37 C~5S4l 2022 03 02.169970 09 01 48.146 +15 07 11.68 15BC519 G37 C~5S4l 2022 03 02.210410 09 01 47.939 +15 07 12.35 15BC519 G37 C~5S4l 2023 11 18.87903 09 25 00.06 +13 26 14.4 22.6w 15BC519 O18 C~7X91 2023 11 18.88325 09 25 00.06 +13 26 14.3 22.0w 15BC519 O18 C~7X91 2023 11 18.88745 09 25 00.05 +13 26 14.4 22.2w 15BC519 O18 C~7X91 2023 11 19.90208 09 25 00.41 +13 26 09.7 22.3w 15BC519 O18 C~7X91 2023 11 19.90637 09 25 00.40 +13 26 09.6 22.6w 15BC519 O18 C~7X91 2023 11 19.91071 09 25 00.40 +13 26 09.4 22.1w 15BC519 O18 C~7X91
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 0.19 0.00 0.10
2 0.0110 0.00 0.11 0.00 -0.01
3 1.0025 0.00 -0.14 0.00 -0.01
4 1.0191 0.00 -0.27 0.00 0.47
5 1.2045 0.00 0.06 0.00 0.73
6 1.2839 0.00 0.04 0.00 -0.25
7 1.9799 0.00 -0.47 0.00 -0.23
8 2.0454 0.00 -0.01 0.00 -0.11
9 2.0455 0.00 0.17 0.00 -0.16
10 2.0455 0.00 0.02 0.00 0.11
11 2.0455 0.00 0.08 0.00 -0.16
12 2.9329 0.00 -0.11 0.00 -0.01
13 2.9329 0.00 0.28 0.00 -0.18
14 2.9330 0.00 -0.06 0.00 0.01
15 3.0885 0.00 0.20 0.00 0.08
16 3.0886 0.00 -0.01 0.00 0.34
17 3.0886 0.00 0.05 0.00 -0.07
18 3.7571 0.00 0.16 0.00 -0.13
19 3.9759 0.00 0.04 0.00 -0.18
20 3.9760 0.00 -0.00 0.00 -0.11
21 3.9760 0.00 -0.01 0.00 0.00
22 3.9760 0.00 0.08 0.00 -0.11
23 4.0601 0.00 -0.02 0.00 0.12
24 4.0602 0.00 0.07 0.00 -0.31
25 4.0629 0.00 -0.12 0.00 -0.13
26 4.0629 0.00 0.12 0.00 -0.08
27 4.0629 0.00 0.30 0.00 0.09
28 4.0630 0.00 -0.27 0.00 0.14
29 4.1371 0.00 0.04 0.00 0.11
30 4.1371 0.00 0.09 0.00 -0.02
31 4.1371 0.00 -0.08 0.00 0.18
32 4.1397 0.00 0.13 0.00 0.07
33 4.1397 0.00 0.05 0.00 0.12
34 4.1398 0.00 0.13 0.00 0.35
35 4.1398 0.00 0.16 0.00 0.08
36 4.2053 0.00 0.03 0.00 -0.01
37 4.9502 0.00 -0.30 0.00 0.03
38 4.9503 0.00 0.05 0.00 0.01
39 4.9503 0.00 0.07 0.00 0.03
40 4.9503 0.00 -0.06 0.00 -0.01
41 5.0108 0.00 -0.29 0.00 -0.09
42 5.0404 0.00 0.17 0.00 -0.26
43 5.0404 0.00 -0.13 0.00 0.10
44 5.0405 0.00 -0.16 0.00 -0.12
45 5.0405 0.00 -0.19 0.00 -0.07
46 5.0457 0.00 -0.01 0.00 0.01
47 5.0458 0.00 -0.09 0.00 0.00
48 5.0458 0.00 -0.11 0.00 0.08
49 5.0458 0.00 -0.03 0.00 -0.16
50 5.1031 0.00 -0.20 0.00 -0.33
51 5.1032 0.00 -0.23 0.00 -0.01
52 5.1032 0.00 -0.07 0.00 -0.07
53 5.1032 0.00 -0.19 0.00 0.03
54 5.2373 0.00 -0.12 0.00 -0.07
55 5.7884 0.00 -0.01 0.00 -0.21
56 5.7885 0.00 -0.33 0.00 -0.07
57 5.7885 0.00 0.10 0.00 -0.01
58 5.7885 0.00 0.12 0.00 -0.04
59 6.0100 0.00 0.02 0.00 -0.06
60 6.0101 0.00 0.01 0.00 -0.08
61 6.0101 0.00 0.06 0.00 -0.08
62 6.0101 0.00 0.05 0.00 0.01
63 6.0669 0.00 0.07 0.00 -0.12
64 6.0669 0.00 0.02 0.00 -0.19
65 6.0669 0.00 -0.06 0.00 -0.02
66 6.0670 0.00 -0.15 0.00 -0.08
67 6.0916 0.00 -0.02 0.00 0.17
68 6.8807 0.00 0.03 0.00 0.07
69 6.8862 0.00 0.21 0.00 0.10
70 6.9112 0.00 0.17 0.00 0.02
71 8.9999 0.00 -0.10 0.00 0.01
72 8.9999 0.00 0.05 0.00 0.07
73 8.9999 0.00 0.08 0.00 0.08
74 9.0022 0.00 -0.08 0.00 0.06
75 9.0022 0.00 0.11 0.00 0.17
76 9.0023 0.00 0.08 0.00 0.16
77 9.8787 0.00 0.03 0.00 0.03
78 9.8787 0.00 -0.08 0.00 -0.05
79 9.8787 0.00 -0.11 0.00 -0.13
80 9.8788 0.00 0.17 0.00 0.06
81 11.0746 0.00 -0.02 0.00 0.15
82 11.0746 0.00 -0.08 0.00 0.18
83 11.0746 0.00 0.01 0.00 0.22
84 11.0987 0.00 0.25 0.00 -0.03
85 11.0988 0.00 0.25 0.00 0.15
86 11.0989 0.00 0.14 0.00 -0.09
87 12.8147 0.00 0.06 0.00 0.01
88 12.8147 0.00 0.04 0.00 -0.07
89 12.8147 0.00 -0.13 0.00 0.05
90 12.8175 0.00 0.04 0.00 0.01
91 12.8175 0.00 -0.13 0.00 -0.07
92 12.8175 0.00 -0.14 0.00 -0.26
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.
15BC519 quality flag:3 Type: 5:2EEE 5:2EEE 5:2EEE axisobj 55.626 55.625 55.626 ecceobj 0.417 0.417 0.417 incobj 1.721 1.721 1.721 qmin 31.692 31.688 31.682 qmax 80.669 80.666 80.628 amean 55.463 55.462 55.462 amin 54.660 54.669 54.675 amax 56.494 56.491 56.456 emean 0.418 0.418 0.418 emin 0.407 0.407 0.406 emax 0.429 0.429 0.429 imean 2.553 2.553 2.555 imin 2.414 2.413 2.396 imax 2.750 2.750 2.748 excite_mean 0.420 0.420 0.420 fracstop 1.000 1.000 1.000 cjmean 3.007 3.007 3.007 libcent 0 180.0 179.2 179.9 libamp 0 113.6 113.7 110.5 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 131.4 131.5 126.0 kozaiamp 180.0 180.0 180.0