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: 15BP519 # Created Sun Jan 5 02:10:24 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 56 observations of 56 # Arc: 10.80y # First observation: 2014/02/10 # Last observation: 2024/11/28 # Chi-squared of fit: 11.92 DOF: 106 RMS: 0.08 # Min/Max residuals: -0.27 0.50 # Exact a, adot, b, bdot, g, gdot: 1.458805E-05 1.649040E-02 2.971958E-07 3.004974E-04 1.796574E-02 -1.258187E-02 # Covariance matrix: 1.7108E-13 -6.7986E-14 -9.2200E-15 1.7587E-15 -2.5405E-14 -2.6340E-13 -6.7986E-14 3.7439E-14 1.7877E-15 -1.5076E-15 1.7910E-15 1.5646E-13 -9.2200E-15 1.7877E-15 6.8898E-14 -8.0721E-15 1.7377E-14 9.9370E-15 1.7587E-15 -1.5076E-15 -8.0721E-15 1.9164E-15 2.0106E-15 -6.3629E-15 -2.5405E-14 1.7910E-15 1.7377E-14 2.0106E-15 6.2189E-14 1.5376E-14 -2.6340E-13 1.5646E-13 9.9370E-15 -6.3629E-15 1.5376E-14 6.8748E-13 # lat0 lon0 xBary yBary zBary JD0 -54.019905 46.422259 -0.981129 0.065451 0.047336 2456698.607988 # Heliocentric elements and errors Epoch: 2456698.5000 = 2014/02/10 Mean Anomaly: 358.45869 +/- 0.002 Argument of Peri: 347.79980 +/- 0.003 Long of Asc Node: 135.34798 +/- 0.000 Inclination: 54.10684 +/- 0.000 Eccentricity: 0.92600048 +/- 0.0001 Semi-Major Axis: 476.75072335 +/- 0.4374 Time of Perihelion: 2472977.3469 +/- 5209.6 Perihelion: 35.27932651 +/- 0.0459 Aphelion: 918.22212020 +/- 0.8430 Period (y) 10409.8685 +/- 14.32 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 21.77404173 +/- 0.0003 Ecliptic Y 24.31072384 +/- 0.0003 Ecliptic Z -45.04250070 +/- 0.0006 Ecliptic XDOT -0.00257738 +/- 0.0000 Ecliptic YDOT 0.00094032 +/- 0.0000 Ecliptic ZDOT 0.00157863 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 55.62386176 +/- 0.0005 Geocenter to KBO 55.66215508 +/- 0.0008 # Hcoef: 4.23
The following table shows the complete astrometric record for 15BP519. 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 (15BP519) followed by the observatory code and reference code for the source of the astrometry.
2014 02 10.10721 04 01 31.614 -34 58 11.99 21.7Y 15BP519 W84 C~4yW0 2014 11 27.32842 04 09 43.643 -35 15 45.73 22.7g 15BP519 W84 C~4yW0 2014 11 27.33115 04 09 43.632 -35 15 45.72 21.5i 15BP519 W84 C~4yW0 2015 01 17.18674 04 06 29.036 -34 57 37.79 21.6r 15BP519 W84 C~4yW0 2015 01 17.18951 04 06 29.027 -34 57 37.66 22.6g 15BP519 W84 C~4yW0 2015 01 26.13251 04 06 10.101 -34 50 52.46 21.7r 15BP519 W84 C~4yW0 2015 01 27.08971 04 06 08.458 -34 50 06.42 21.2z 15BP519 W84 C~4yW0 2015 01 28.10786 04 06 06.792 -34 49 16.79 21.3z 15BP519 W84 C~4yW0 2015 01 28.12083 04 06 06.768 -34 49 16.17 21.5i 15BP519 W84 C~4yW0 2015 01 30.11816 04 06 03.754 -34 47 37.39 21.5i 15BP519 W84 C~4yW0 2015 02 01.04691 04 06 01.172 -34 46 00.20 21.1z 15BP519 W84 C~4yW0 2015 02 10.10854 04 05 53.273 -34 38 03.05 21.7r 15BP519 W84 C~4yW0 2015 02 11.05026 04 05 52.874 -34 37 11.82 21.7r 15BP519 W84 C~4yW0 2015 02 12.11980 04 05 52.501 -34 36 13.19 22.4g 15BP519 W84 C~4yW0 2015 11 20.33616 04 14 48.579 -34 53 15.70 21.6r 15BP519 W84 C~4yW0 2015 11 20.35065 04 14 48.516 -34 53 15.83 21.5i 15BP519 W84 C~4yW0 2015 12 09.28438 04 13 22.092 -34 53 31.67 22.4g 15BP519 W84 C~4yW0 2016 02 05.07081 04 10 23.109 -34 21 18.95 21.4r 15BP519 W84 C~4yW0 2016 02 05.07220 04 10 23.104 -34 21 18.93 22.0g 15BP519 W84 C~4yW0 2016 11 17.28184 04 19 35.244 -34 29 48.49 21.2Y 15BP519 W84 C~4yW0 2016 12 02.24481 04 18 26.319 -34 31 14.85 21.2i 15BP519 W84 C~4yW0 2016 12 02.24619 04 18 26.315 -34 31 14.87 21.5r 15BP519 W84 C~4yW0 2016 12 02.247576 04 18 26.301 -34 31 14.93 22.1g 15BP519 W84 C~2dZL 2017 01 18.19247 04 15 25.170 -34 12 35.85 21.4z 15BP519 W84 C~4yW0 2017 02 02.14779 04 14 56.001 -34 00 36.19 21.6r 15BP519 W84 C~4yW0 2017 02 02.14916 04 14 55.997 -34 00 36.11 21.3i 15BP519 W84 C~4yW0 2017 02 02.15053 04 14 55.993 -34 00 36.06 22.6g 15BP519 W84 C~4yW0 2017 02 18.025400 04 14 46.203 -33 46 01.12 21.6r 15BP519 W84 C~2dZL 2017 02 18.06246 04 14 46.203 -33 45 59.01 21.6r 15BP519 W84 C~4yW0 2017 08 06.398316 04 26 32.994 -32 54 57.90 15BP519 W84 C~2dZL 2017 08 07.379034 04 26 35.748 -32 55 39.39 15BP519 W84 C~2dZL 2017 08 07.419462 04 26 35.856 -32 55 41.20 15BP519 W84 C~2dZL 2017 12 06.25847 04 22 48.708 -34 06 56.97 21.1z 15BP519 W84 C~4yW0 2017 12 11.29018 04 22 25.549 -34 06 20.65 21.5r 15BP519 W84 C~4yW0 2018 01 10.137691 04 20 25.824 -33 54 22.64 22.4g 15BP519 W84 C~2dZL 2018 01 24.09748 04 19 47.591 -33 44 28.93 21.2z 15BP519 W84 C~4yW0 2018 02 15.101904 04 19 19.707 -33 25 05.52 22.3g 15BP519 W84 C~2dZL 2018 10 22.37760 04 30 47.319 -33 28 23.71 20.9Y 15BP519 W84 C~4yW0 2018 11 29.32106 04 28 06.613 -33 41 33.85 21.5r 15BP519 W84 C~4yW0 2018 12 06.05245 04 27 34.932 -33 41 32.72 22.3g 15BP519 W84 C~4yW0 2022 10 31.23797 04 49 59.36 -31 34 54.1 21.1G 15BP519 X01 C~5z4N 2022 11 01.27007 04 49 55.48 -31 35 27.9 21.0G 15BP519 X01 C~5z4N 2022 12 04.418866 04 47 26.624 -31 44 59.62 20.5i 15BP519 F51 C~678U 2022 12 04.430644 04 47 26.569 -31 44 59.49 20.6i 15BP519 F51 C~678U 2022 12 04.442431 04 47 26.507 -31 44 59.54 20.4i 15BP519 F51 C~678U 2023 01 19.285060 04 44 10.265 -31 27 52.13 21.3w 15BP519 F52 C~6B8e 2023 01 19.294623 04 44 10.228 -31 27 51.87 21.3w 15BP519 F52 C~6B8e 2023 01 19.304156 04 44 10.190 -31 27 51.19 21.2w 15BP519 F52 C~6B8e 2023 01 19.313693 04 44 10.164 -31 27 50.91 21.4w 15BP519 F52 C~6B8e 2024 01 20.239852 04 49 13.084 -30 54 41.65 21.4w 15BP519 F51 C~7grk 2024 01 20.250868 04 49 13.068 -30 54 41.30 21.2w 15BP519 F51 C~7grk 2024 01 20.262689 04 49 13.038 -30 54 40.74 21.3w 15BP519 F51 C~7grk 2024 11 28.416530 04 58 15.463 -30 36 49.87 21.3w 15BP519 F51 C~8SUJ 2024 11 28.427539 04 58 15.408 -30 36 50.07 21.1w 15BP519 F51 C~8SUJ 2024 11 28.438554 04 58 15.356 -30 36 50.09 21.2w 15BP519 F51 C~8SUJ 2024 11 28.449557 04 58 15.303 -30 36 50.23 21.1w 15BP519 F51 C~8SUJ
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 -0.01 0.00 -0.01
2 0.7946 0.00 -0.02 0.00 -0.00
3 0.7946 0.00 -0.00 0.00 0.01
4 0.9338 0.00 0.04 0.00 0.01
5 0.9338 0.00 0.01 0.00 0.02
6 0.9583 0.00 0.03 0.00 0.01
7 0.9609 0.00 0.02 0.00 -0.05
8 0.9637 0.00 0.04 0.00 0.00
9 0.9638 0.00 0.00 0.00 -0.02
10 0.9692 0.00 0.02 0.00 -0.00
11 0.9745 0.00 0.10 0.00 0.02
12 0.9993 0.00 -0.02 0.00 0.00
13 1.0019 0.00 0.04 0.00 -0.00
14 1.0048 0.00 0.00 0.00 0.07
15 1.7748 0.00 -0.04 0.00 -0.00
16 1.7748 0.00 0.02 0.00 0.01
17 1.8266 0.00 -0.02 0.00 -0.01
18 1.9848 0.00 -0.03 0.00 0.01
19 1.9848 0.00 -0.08 0.00 -0.05
20 2.7684 0.00 0.17 0.00 0.13
21 2.8094 0.00 -0.03 0.00 0.03
22 2.8094 0.00 0.01 0.00 0.00
23 2.8094 0.00 -0.10 0.00 -0.06
24 2.9379 0.00 -0.01 0.00 0.02
25 2.9789 0.00 0.05 0.00 0.01
26 2.9789 0.00 0.02 0.00 0.01
27 2.9789 0.00 -0.02 0.00 -0.01
28 3.0224 0.00 0.03 0.00 0.03
29 3.0225 0.00 0.01 0.00 -0.00
30 3.4861 0.00 -0.04 0.00 -0.02
31 3.4888 0.00 -0.01 0.00 0.04
32 3.4889 0.00 -0.03 0.00 -0.03
33 3.8197 0.00 0.08 0.00 0.03
34 3.8335 0.00 -0.02 0.00 0.02
35 3.9152 0.00 -0.08 0.00 0.00
36 3.9534 0.00 -0.03 0.00 -0.04
37 4.0137 0.00 -0.02 0.00 0.00
38 4.6962 0.00 -0.06 0.00 0.07
39 4.8000 0.00 -0.04 0.00 -0.01
40 4.8185 0.00 -0.09 0.00 0.04
41 8.7204 0.00 0.13 0.00 0.00
42 8.7232 0.00 0.50 0.00 -0.27
43 8.8140 0.00 -0.07 0.00 -0.09
44 8.8140 0.00 -0.02 0.00 0.05
45 8.8141 0.00 -0.08 0.00 0.01
46 8.9396 0.00 0.12 0.00 0.03
47 8.9396 0.00 0.03 0.00 -0.13
48 8.9396 0.00 -0.08 0.00 0.14
49 8.9396 0.00 -0.02 0.00 -0.00
50 9.9415 0.00 -0.22 0.00 0.13
51 9.9415 0.00 0.08 0.00 0.00
52 9.9416 0.00 0.20 0.00 0.04
53 10.7989 0.00 -0.12 0.00 0.04
54 10.7990 0.00 -0.13 0.00 -0.07
55 10.7990 0.00 -0.09 0.00 -0.00
56 10.7990 0.00 -0.07 0.00 -0.05
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.
15BP519 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 488.644 488.597 488.691 ecceobj 0.927 0.927 0.927 incobj 54.100 54.100 54.100 qmin 32.634 32.807 32.884 qmax 1105.108 973.699 975.510 amean 482.631 445.090 448.148 amin 423.622 407.788 419.610 amax 570.196 504.664 505.451 emean 0.927 0.921 0.921 emin 0.914 0.911 0.913 emax 0.938 0.931 0.930 imean 52.700 52.760 52.735 imin 49.898 50.288 50.311 imax 55.543 55.316 55.355 excite_mean 1.221 1.217 1.217 fracstop 1.000 1.000 1.000 cjmean 1.887 1.887 1.887 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 349.1 349.5 349.0 kozaiamp 1.8 1.9 1.6