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: 15BP518
# Created Wed Apr 24 01:16:55 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 96 observations of 96
# Arc: 11.63y
# First observation: 2010/06/24
# Last observation: 2022/02/09
# Chi-squared of fit: 68.40 DOF: 186 RMS: 0.15
# Min/Max residuals: -0.41 0.48
# Exact a, adot, b, bdot, g, gdot:
1.596901E-05 2.476118E-02 1.444918E-07 9.950079E-04 2.458233E-02 3.579334E-03
# Covariance matrix:
2.0633E-13 -5.7239E-14 8.3325E-15 -2.0684E-15 -3.7869E-14 -1.5220E-13
-5.7239E-14 2.5732E-14 -1.4649E-15 1.0996E-15 -3.5788E-15 7.2936E-14
8.3325E-15 -1.4649E-15 7.7184E-14 -1.2604E-14 -5.4173E-15 -6.0575E-15
-2.0684E-15 1.0996E-15 -1.2604E-14 2.6206E-15 -2.2474E-16 3.4483E-15
-3.7869E-14 -3.5788E-15 -5.4173E-15 -2.2474E-16 4.6449E-14 4.8248E-16
-1.5220E-13 7.2936E-14 -6.0575E-15 3.4483E-15 4.8248E-16 2.3266E-13
# lat0 lon0 xBary yBary zBary JD0
9.944163 -178.346748 -1.014251 -0.002013 0.011124 2455371.774846
# Heliocentric elements and errors
Epoch: 2455372.5000 = 2010/06/25
Mean Anomaly: 59.39712 +/- 0.007
Argument of Peri: 359.45376 +/- 0.009
Long of Asc Node: 104.91845 +/- 0.001
Inclination: 10.15550 +/- 0.000
Eccentricity: 0.17899692 +/- 0.0000
Semi-Major Axis: 43.46983426 +/- 0.0020
Time of Perihelion: 2438100.4745 +/- 2.4
Perihelion: 35.68886762 +/- 0.0019
Aphelion: 51.25080090 +/- 0.0026
Period (y) 286.6092 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -40.00709839 +/- 0.0004
Ecliptic Y -2.17206189 +/- 0.0000
Ecliptic Z 7.02495268 +/- 0.0001
Ecliptic XDOT -0.00029247 +/- 0.0000
Ecliptic YDOT -0.00276130 +/- 0.0000
Ecliptic ZDOT 0.00017796 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.67710486 +/- 0.0003
Geocenter to KBO 40.67958723 +/- 0.0004
# Hcoef: 5.94
The following table shows the complete astrometric record for 15BP518. 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 (15BP518) followed by the observatory code and reference code for the source of the astrometry.
2010 06 24.27408 12 21 59.458 +08 27 39.30 22.6G 15BP518 F51 C~2rYJ 2010 06 30.30040 12 22 04.318 +08 25 34.13 21.9G 15BP518 F51 C~2rYJ 2010 07 01.31395 12 22 05.439 +08 25 11.16 22.4G 15BP518 F51 C~2rYJ 2011 04 01.33756 12 31 06.766 +07 46 59.07 22.1w 15BP518 F51 C~1vYB 2011 04 01.39761 12 31 06.478 +07 47 00.79 22.0w 15BP518 F51 C~1vYB 2011 04 01.41185 12 31 06.411 +07 47 01.14 22.1w 15BP518 F51 C~1vYB 2012 01 19.66053 12 40 24.951 +06 38 55.22 21.8G 15BP518 F51 C~2rYJ 2012 04 21.42923 12 34 55.402 +07 23 40.89 22.1w 15BP518 F51 C~1vYB 2012 04 21.44364 12 34 55.336 +07 23 41.13 22.0w 15BP518 F51 C~1vYB 2012 04 21.45811 12 34 55.268 +07 23 41.27 22.0w 15BP518 F51 C~1vYB 2012 04 21.47264 12 34 55.212 +07 23 41.55 22.2w 15BP518 F51 C~1vYB 2012 04 23.43324 12 34 47.057 +07 24 20.65 22.1G 15BP518 F51 C~2rYJ 2012 06 16.31324 12 32 33.587 +07 27 28.20 22.8G 15BP518 F51 C~2rYJ 2013 01 11.61219 12 45 39.486 +06 05 10.91 22.8G 15BP518 F51 C~2rYJ 2013 04 17.33286 12 40 32.409 +06 50 15.10 21.6G 15BP518 F51 C~2rYJ 2013 04 28.31897 12 39 46.459 +06 53 55.96 21.9G 15BP518 F51 C~2rYJ 2013 04 30.34806 12 39 38.482 +06 54 31.02 22.9G 15BP518 F51 C~2rYJ 2014 02 10.49623 12 50 12.021 +05 45 11.41 21.7i 15BP518 F51 C~1w41 2014 02 10.51004 12 50 12.006 +05 45 11.85 21.6i 15BP518 F51 C~1w41 2014 02 26.56918 12 49 23.432 +05 53 24.67 22.2w 15BP518 F51 C~1vYB 2014 02 26.58140 12 49 23.393 +05 53 25.13 22.3w 15BP518 F51 C~1vYB 2014 02 26.59366 12 49 23.354 +05 53 25.54 22.2w 15BP518 F51 C~1vYB 2014 02 26.60590 12 49 23.304 +05 53 25.97 22.4w 15BP518 F51 C~1vYB 2014 02 27.49254 12 49 20.163 +05 53 54.60 22.3w 15BP518 F51 C~1w41 2014 02 27.50481 12 49 20.117 +05 53 54.93 22.1w 15BP518 F51 C~1w41 2014 02 27.51712 12 49 20.060 +05 53 55.39 22.4w 15BP518 F51 C~1w41 2014 02 27.52945 12 49 20.033 +05 53 55.90 22.5w 15BP518 F51 C~1w41 2014 04 04.37806 12 46 47.324 +06 12 42.53 21.8w 15BP518 F51 C~1w41 2014 04 04.39205 12 46 47.255 +06 12 43.01 21.9w 15BP518 F51 C~1w41 2014 04 23.30126 12 45 23.285 +06 20 28.13 21.9w 15BP518 F51 C~1w41 2014 04 23.33770 12 45 23.131 +06 20 28.77 21.7w 15BP518 F51 C~1w41 2014 04 29.25824 12 44 58.809 +06 22 21.58 22.1w 15BP518 F51 C~1vYB 2014 04 29.27012 12 44 58.743 +06 22 21.59 22.1w 15BP518 F51 C~1vYB 2014 04 29.28202 12 44 58.716 +06 22 21.94 21.9w 15BP518 F51 C~1vYB 2014 04 29.29391 12 44 58.664 +06 22 22.01 21.9w 15BP518 F51 C~1vYB 2014 05 17.39862 12 43 54.766 +06 26 07.76 21.7G 15BP518 F51 C~2rYJ 2015 01 06.61943 12 55 49.914 +05 01 23.52 22.6G 15BP518 F51 C~2rYJ 2015 01 19.58602 12 55 52.172 +05 04 43.85 22.2G 15BP518 F51 C~2rYJ 2015 01 19.59956 12 55 52.176 +05 04 44.25 22.1G 15BP518 F51 C~2rYJ 2015 01 19.61305 12 55 52.172 +05 04 44.84 22.6G 15BP518 F51 C~2rYJ 2015 01 19.62658 12 55 52.154 +05 04 45.11 22.1G 15BP518 F51 C~2rYJ 2015 01 21.61088 12 55 51.118 +05 05 23.70 22.3w 15BP518 F51 C~1vYB 2015 01 21.62317 12 55 51.099 +05 05 23.70 22.3w 15BP518 F51 C~1vYB 2015 01 21.63545 12 55 51.097 +05 05 24.04 22.2w 15BP518 F51 C~1vYB 2015 01 21.64778 12 55 51.089 +05 05 24.41 22.4w 15BP518 F51 C~1vYB 2015 02 18.54080 12 55 00.309 +05 17 22.17 21.9w 15BP518 F51 C~1vYB 2015 02 18.55325 12 55 00.277 +05 17 22.57 22.0w 15BP518 F51 C~1vYB 2015 02 18.56578 12 55 00.223 +05 17 23.01 22.2w 15BP518 F51 C~1vYB 2015 02 18.57819 12 55 00.194 +05 17 23.21 22.3w 15BP518 F51 C~1vYB 2015 02 19.51305 12 54 57.435 +05 17 51.74 22.0w 15BP518 F51 C~1vYB 2015 02 19.52550 12 54 57.409 +05 17 52.22 22.2w 15BP518 F51 C~1vYB 2015 02 19.53796 12 54 57.359 +05 17 52.57 22.0w 15BP518 F51 C~1vYB 2015 03 23.48733 12 52 54.719 +05 34 48.09 22.2w 15BP518 F51 C~1vYB 2015 03 23.49994 12 52 54.648 +05 34 48.52 22.2w 15BP518 F51 C~1vYB 2015 03 23.52511 12 52 54.554 +05 34 49.38 22.0w 15BP518 F51 C~1vYB 2015 03 24.42685 12 52 50.551 +05 35 17.56 22.4w 15BP518 F51 C~1vYB 2015 03 24.44130 12 52 50.476 +05 35 17.75 22.2w 15BP518 F51 C~1vYB 2015 03 24.45579 12 52 50.417 +05 35 18.43 22.2w 15BP518 F51 C~1vYB 2015 03 24.47043 12 52 50.353 +05 35 18.85 22.2w 15BP518 F51 C~1vYB 2015 05 21.27213 12 48 55.074 +05 54 59.15 22.8w 15BP518 F51 C~1vYB 2015 05 21.28643 12 48 55.021 +05 54 59.32 22.0w 15BP518 F51 C~1vYB 2015 05 21.30076 12 48 54.979 +05 54 59.03 22.4w 15BP518 F51 C~1vYB 2015 05 21.31511 12 48 54.945 +05 54 59.59 22.2w 15BP518 F51 C~1vYB 2016 01 24.59090 13 00 52.845 +04 35 02.54 22.5G 15BP518 F51 C~2rYJ 2016 02 02.57043 13 00 42.574 +04 38 24.76 22.5G 15BP518 F51 C~2rYJ 2016 02 05.58748 13 00 37.563 +04 39 40.06 22.3G 15BP518 F51 C~2rYJ 2016 02 05.59904 13 00 37.539 +04 39 40.59 22.1G 15BP518 F51 C~2rYJ 2016 02 05.61056 13 00 37.524 +04 39 40.78 22.8G 15BP518 F51 C~2rYJ 2016 02 05.62210 13 00 37.513 +04 39 41.10 22.0G 15BP518 F51 C~2rYJ 2016 02 15.65645 13 00 15.430 +04 44 15.24 21.1G 15BP518 F51 C~2rYJ 2016 02 16.57816 13 00 13.026 +04 44 42.19 21.9G 15BP518 F51 C~2rYJ 2017 02 25.53529 13 04 48.426 +04 18 04.59 22.7G 15BP518 F51 C~2rYJ 2017 02 25.54672 13 04 48.385 +04 18 04.86 22.5G 15BP518 F51 C~2rYJ 2017 02 25.55817 13 04 48.354 +04 18 04.99 22.5G 15BP518 F51 C~2rYJ 2017 02 25.56963 13 04 48.294 +04 18 05.72 22.5G 15BP518 F51 C~2rYK 2017 03 20.38793 13 03 21.421 +04 30 02.08 22.3G 15BP518 F51 C~2rYK 2017 03 20.40209 13 03 21.334 +04 30 02.51 22.0G 15BP518 F51 C~2rYK 2017 03 20.41624 13 03 21.278 +04 30 03.09 22.1G 15BP518 F51 C~2rYK 2017 03 20.43042 13 03 21.222 +04 30 03.32 21.9G 15BP518 F51 C~2rYK 2017 03 26.54734 13 02 54.577 +04 33 12.01 21.9G 15BP518 F51 C~2rYK 2017 03 29.40036 13 02 41.889 +04 34 37.46 21.2G 15BP518 F51 C~2rYK 2017 03 29.41265 13 02 41.852 +04 34 37.86 21.6G 15BP518 F51 C~2rYK 2017 03 29.42618 13 02 41.791 +04 34 38.48 21.8G 15BP518 F51 C~2rYK 2017 03 29.43852 13 02 41.737 +04 34 38.65 22.0G 15BP518 F51 C~2rYK 2017 04 03.51787 13 02 18.893 +04 37 07.17 22.2G 15BP518 F51 C~2rYK 2017 04 03.52928 13 02 18.845 +04 37 07.42 22.6G 15BP518 F51 C~2rYK 2017 04 03.54072 13 02 18.780 +04 37 07.66 22.3G 15BP518 F51 C~2rYK 2017 04 03.55217 13 02 18.738 +04 37 07.85 22.5G 15BP518 F51 C~2rYK 2018 03 11.51658 13 09 01.435 +03 53 48.73 22.5G 15BP518 F51 C~2rYK 2020 05 16.36468 13 14 19.347 +03 18 21.52 22.0w 15BP518 F52 C~3suY 2020 05 16.37602 13 14 19.320 +03 18 21.44 21.9w 15BP518 F52 C~3suY 2020 05 16.38726 13 14 19.285 +03 18 21.78 22.1w 15BP518 F52 C~3suY 2022 02 09.525580 13 29 58.083 +01 36 43.68 22.3w 15BP518 F52 C~5S4l 2022 02 09.536425 13 29 58.065 +01 36 43.96 22.0w 15BP518 F52 C~5S4l 2022 02 09.547282 13 29 58.032 +01 36 44.13 22.2w 15BP518 F52 C~5S4l 2022 02 09.558162 13 29 58.016 +01 36 44.21 22.1w 15BP518 F52 C~5S4l
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 0.03 0.00 0.10
2 0.0165 0.00 0.02 0.00 -0.11
3 0.0193 0.00 -0.15 0.00 -0.14
4 0.7695 0.00 -0.05 0.00 -0.13
5 0.7697 0.00 -0.13 0.00 -0.14
6 0.7697 0.00 -0.13 0.00 -0.20
7 1.5726 0.00 -0.24 0.00 -0.28
8 1.8266 0.00 0.15 0.00 0.08
9 1.8266 0.00 0.08 0.00 0.02
10 1.8267 0.00 -0.01 0.00 -0.13
11 1.8267 0.00 0.08 0.00 -0.14
12 1.8321 0.00 0.16 0.00 0.16
13 1.9796 0.00 -0.31 0.00 -0.18
14 2.5526 0.00 -0.03 0.00 -0.21
15 2.8147 0.00 -0.20 0.00 0.04
16 2.8447 0.00 -0.03 0.00 -0.41
17 2.8503 0.00 -0.09 0.00 0.48
18 3.6337 0.00 -0.05 0.00 0.07
19 3.6338 0.00 0.25 0.00 0.11
20 3.6777 0.00 0.02 0.00 0.01
21 3.6778 0.00 0.10 0.00 0.08
22 3.6778 0.00 0.18 0.00 0.09
23 3.6778 0.00 0.10 0.00 0.13
24 3.6803 0.00 0.29 0.00 0.23
25 3.6803 0.00 0.28 0.00 0.16
26 3.6803 0.00 0.10 0.00 0.23
27 3.6804 0.00 0.38 0.00 0.34
28 3.7785 0.00 -0.06 0.00 -0.10
29 3.7786 0.00 -0.12 0.00 -0.01
30 3.8303 0.00 0.06 0.00 0.19
31 3.8304 0.00 0.10 0.00 0.08
32 3.8466 0.00 0.14 0.00 0.17
33 3.8467 0.00 -0.13 0.00 -0.03
34 3.8467 0.00 0.19 0.00 0.11
35 3.8467 0.00 0.14 0.00 -0.03
36 3.8963 0.00 0.17 0.00 -0.37
37 4.5376 0.00 -0.26 0.00 -0.05
38 4.5731 0.00 -0.09 0.00 -0.31
39 4.5731 0.00 0.08 0.00 -0.17
40 4.5731 0.00 0.12 0.00 0.16
41 4.5732 0.00 -0.04 0.00 0.18
42 4.5786 0.00 0.10 0.00 0.11
43 4.5786 0.00 -0.06 0.00 -0.14
44 4.5787 0.00 0.04 0.00 -0.05
45 4.5787 0.00 0.05 0.00 0.08
46 4.6551 0.00 -0.06 0.00 0.10
47 4.6551 0.00 0.02 0.00 0.12
48 4.6551 0.00 -0.23 0.00 0.18
49 4.6552 0.00 -0.10 0.00 0.01
50 4.6577 0.00 -0.16 0.00 0.17
51 4.6578 0.00 0.02 0.00 0.27
52 4.6578 0.00 -0.16 0.00 0.24
53 4.7453 0.00 0.04 0.00 -0.15
54 4.7453 0.00 -0.17 0.00 -0.11
55 4.7454 0.00 0.13 0.00 -0.03
56 4.7479 0.00 0.11 0.00 0.15
57 4.7479 0.00 -0.03 0.00 -0.11
58 4.7479 0.00 0.07 0.00 0.12
59 4.7480 0.00 0.11 0.00 0.09
60 4.9062 0.00 0.00 0.00 0.03
61 4.9063 0.00 -0.17 0.00 0.12
62 4.9063 0.00 -0.17 0.00 -0.25
63 4.9063 0.00 -0.05 0.00 0.23
64 5.5861 0.00 0.09 0.00 0.08
65 5.6107 0.00 -0.17 0.00 0.06
66 5.6189 0.00 -0.03 0.00 -0.19
67 5.6190 0.00 -0.06 0.00 0.05
68 5.6190 0.00 0.04 0.00 -0.06
69 5.6190 0.00 0.20 0.00 -0.03
70 5.6465 0.00 0.03 0.00 -0.20
71 5.6490 0.00 0.12 0.00 0.03
72 6.6756 0.00 -0.07 0.00 0.08
73 6.6756 0.00 -0.12 0.00 -0.00
74 6.6757 0.00 -0.02 0.00 -0.22
75 6.6757 0.00 -0.35 0.00 0.16
76 6.7382 0.00 0.20 0.00 0.01
77 6.7382 0.00 -0.19 0.00 -0.01
78 6.7382 0.00 -0.10 0.00 0.13
79 6.7383 0.00 -0.02 0.00 -0.08
80 6.7550 0.00 -0.09 0.00 0.17
81 6.7628 0.00 -0.31 0.00 -0.19
82 6.7629 0.00 -0.03 0.00 -0.16
83 6.7629 0.00 -0.02 0.00 0.06
84 6.7629 0.00 0.01 0.00 -0.14
85 6.7768 0.00 -0.03 0.00 0.06
86 6.7769 0.00 0.04 0.00 -0.02
87 6.7769 0.00 -0.15 0.00 -0.10
88 6.7769 0.00 0.01 0.00 -0.24
89 7.7132 0.00 0.09 0.00 -0.10
90 9.8948 0.00 -0.09 0.00 0.00
91 9.8949 0.00 0.11 0.00 -0.20
92 9.8949 0.00 0.18 0.00 0.01
93 11.6311 0.00 0.13 0.00 0.06
94 11.6311 0.00 0.12 0.00 0.09
95 11.6311 0.00 -0.12 0.00 0.01
96 11.6312 0.00 -0.10 0.00 -0.17
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.
15BP518 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 43.503 43.503 43.503 ecceobj 0.181 0.181 0.181 incobj 10.150 10.150 10.150 qmin 35.304 35.283 35.333 qmax 52.653 52.668 52.533 amean 43.727 43.727 43.726 amin 43.316 43.318 43.324 amax 44.209 44.209 44.209 emean 0.155 0.146 0.145 emin 0.079 0.075 0.079 emax 0.191 0.192 0.190 imean 9.789 10.087 10.141 imin 8.222 8.220 8.224 imax 12.475 12.834 12.601 excite_mean 0.232 0.232 0.232 fracstop 1.000 1.000 1.000 cjmean 3.034 3.034 3.034 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 142.7 168.1 161.6 kozaiamp 180.0 180.0 180.0