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: 531917 # Created Sun Dec 22 02:07:28 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 110 observations of 110 # Arc: 17.15y # First observation: 2006/11/25 # Last observation: 2024/01/20 # Chi-squared of fit: 102.09 DOF: 214 RMS: 0.17 # Min/Max residuals: -0.71 0.70 # Exact a, adot, b, bdot, g, gdot: 1.907495E-05 3.473628E-02 -1.040129E-07 5.099704E-04 2.953493E-02 5.254759E-04 # 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 -6.696119 111.064170 0.738845 -0.077045 -0.657178 2454064.953210 # Heliocentric elements and errors Epoch: 2454064.5000 = 2006/11/25 Mean Anomaly: 358.31269 +/- 0.000 Argument of Peri: 278.57004 +/- 0.000 Long of Asc Node: 193.85425 +/- 0.000 Inclination: 6.60274 +/- 0.000 Eccentricity: 0.20770421 +/- 0.0000 Semi-Major Axis: 43.56236163 +/- 0.0000 Time of Perihelion: 2454556.7174 +/- 0.0 Perihelion: 34.51427588 +/- 0.0000 Aphelion: 52.61044739 +/- 0.0000 Period (y) 287.5248 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -11.63757355 +/- 0.0000 Ecliptic Y 32.25904635 +/- 0.0000 Ecliptic Z -3.94799137 +/- 0.0000 Ecliptic XDOT -0.00301907 +/- 0.0000 Ecliptic YDOT -0.00111123 +/- 0.0000 Ecliptic ZDOT 0.00004121 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 34.52051806 +/- 0.0000 Geocenter to KBO 33.85823408 +/- 0.0000 # Hcoef: 6.66
The following table shows the complete astrometric record for 531917. 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 (531917) followed by the observatory code and reference code for the source of the astrometry.
2006 11 25.452456 07 26 49.52 +15 10 11.9 21.7V 531917 645 C~2aHj 2006 11 25.453285 07 26 49.52 +15 10 11.9 531917 645 C~2aHj 2006 11 25.455773 07 26 49.51 +15 10 11.9 531917 645 C~2aHj 2010 01 10.40674 07 47 27.816 +14 23 24.94 22.2r 531917 F51 C~1w3t 2010 01 10.41466 07 47 27.765 +14 23 24.91 22.0r 531917 F51 C~1w3t 2010 01 25.50542 07 45 58.623 +14 27 33.75 21.9r 531917 F51 C~1w3t 2010 05 06.30928 07 43 04.415 +14 51 07.04 23.6G 531917 F51 C~2rXw 2010 11 03.61823 07 59 50.022 +14 00 03.02 21.5G 531917 F51 C~2rXw 2011 01 23.53637 07 54 21.768 +14 07 43.55 21.7i 531917 F51 C~1w3t 2011 01 23.54960 07 54 21.667 +14 07 44.09 21.7G 531917 F51 C~2rXw 2011 01 26.47703 07 54 04.589 +14 08 38.40 22.2r 531917 F51 C~1w3t 2011 01 26.48831 07 54 04.528 +14 08 38.47 22.4r 531917 F51 C~1w3t 2011 01 29.45957 07 53 47.368 +14 09 34.90 22.3g 531917 F51 C~1w3t 2012 01 15.54379 08 03 18.808 +13 45 00.89 21.9i 531917 F51 C~1w3t 2012 01 15.55649 08 03 18.725 +13 45 01.29 21.6i 531917 F51 C~1w3t 2012 01 21.52692 08 02 43.661 +13 46 48.65 22.0r 531917 F51 C~1w3t 2012 01 21.53845 08 02 43.580 +13 46 48.69 22.0G 531917 F51 C~2rXw 2013 01 17.48585 08 11 09.739 +13 24 31.86 22.4w 531917 F51 C~1w3t 2013 01 17.50122 08 11 09.635 +13 24 32.26 22.0w 531917 F51 C~1w3t 2013 01 17.51664 08 11 09.547 +13 24 32.40 21.9w 531917 F51 C~1w3t 2013 01 17.53209 08 11 09.447 +13 24 32.73 22.0w 531917 F51 C~1w3t 2013 01 21.47458 08 10 46.409 +13 25 47.76 21.5i 531917 F51 C~1w3t 2013 01 21.48750 08 10 46.340 +13 25 47.87 21.3i 531917 F51 C~1w3t 2013 02 10.41634 08 08 53.331 +13 32 44.68 21.8w 531917 F51 C~1w3t 2013 02 10.43173 08 08 53.246 +13 32 45.18 21.9w 531917 F51 C~1w3t 2013 02 10.44719 08 08 53.166 +13 32 45.35 22.0w 531917 F51 C~1w3t 2013 02 10.46262 08 08 53.080 +13 32 45.71 22.0w 531917 F51 C~1w3t 2013 10 22.64571 08 23 20.489 +12 58 56.74 22.1G 531917 F51 C~2rXw 2013 12 25.60872 08 21 19.988 +12 56 14.39 21.4i 531917 F51 C~1w3t 2013 12 25.62067 08 21 19.922 +12 56 15.02 21.5i 531917 F51 C~1w3t 2014 10 01.61236 08 30 01.228 +12 43 33.07 23.0G 531917 F51 C~2rXw 2014 11 29.51109 08 30 55.925 +12 30 22.29 22.6G 531917 F51 C~2rXw 2014 11 29.52368 08 30 55.903 +12 30 22.24 21.9G 531917 F51 C~2rXw 2014 11 29.53627 08 30 55.881 +12 30 22.44 21.9G 531917 F51 C~2rXw 2014 11 29.54890 08 30 55.849 +12 30 22.19 22.3G 531917 F51 C~2rXw 2015 01 24.53805 08 26 38.476 +12 41 22.84 22.0G 531917 F51 C~2rXw 2015 01 26.50181 08 26 27.125 +12 42 04.79 22.1G 531917 F51 C~2rXw 2015 01 26.51552 08 26 27.046 +12 42 05.22 22.2G 531917 F51 C~2rXw 2015 01 26.52929 08 26 26.976 +12 42 05.41 22.2G 531917 F51 C~2rXw 2015 01 26.54306 08 26 26.892 +12 42 05.80 21.9G 531917 F51 C~2rXw 2015 01 30.33974 08 26 05.043 +12 43 28.75 21.6G 531917 F51 C~2rXw 2015 01 30.35354 08 26 04.911 +12 43 29.55 21.3G 531917 F51 C~2rXw 2015 02 18.28486 08 24 21.003 +12 50 49.15 22.2G 531917 F51 C~2rXw 2015 02 19.28402 08 24 15.911 +12 51 12.55 21.8G 531917 F51 C~2rXw 2015 02 19.28667 08 24 15.912 +12 51 12.78 22.4G 531917 F51 C~2rXw 2015 02 19.29689 08 24 15.857 +12 51 12.99 22.0G 531917 F51 C~2rXw 2015 02 19.29955 08 24 15.844 +12 51 13.05 22.2G 531917 F51 C~2rXw 2015 02 19.30972 08 24 15.772 +12 51 13.24 22.2G 531917 F51 C~2rXw 2015 02 19.31237 08 24 15.771 +12 51 13.34 22.3G 531917 F51 C~2rXw 2015 02 19.32254 08 24 15.726 +12 51 13.56 21.9G 531917 F51 C~2rXw 2015 02 19.32522 08 24 15.699 +12 51 13.62 22.3G 531917 F51 C~2rXw 2015 10 15.57713 08 38 30.510 +12 14 56.82 22.4G 531917 F51 C~2rXw 2016 01 04.54539 08 36 29.507 +12 11 02.37 22.0G 531917 F51 C~2rXw 2016 01 04.55678 08 36 29.453 +12 11 02.62 22.1G 531917 F51 C~2rXw 2016 01 04.56820 08 36 29.390 +12 11 02.80 22.0G 531917 F51 C~2rXw 2016 01 04.57961 08 36 29.331 +12 11 02.97 21.8G 531917 F51 C~2rXw 2016 01 07.54048 08 36 13.844 +12 11 51.02 21.7G 531917 F51 C~2rXw 2016 01 07.55275 08 36 13.786 +12 11 51.06 21.6G 531917 F51 C~2rXw 2016 01 07.56502 08 36 13.715 +12 11 51.89 23.2G 531917 F51 C~2rXw 2016 01 07.57727 08 36 13.666 +12 11 51.80 22.3G 531917 F51 C~2rXw 2016 01 21.35148 08 34 57.329 +12 16 13.75 21.7G 531917 F51 C~2rXw 2016 02 01.35879 08 33 54.235 +12 20 16.76 21.4G 531917 F51 C~2rXw 2016 02 01.36959 08 33 54.192 +12 20 16.98 20.4G 531917 F51 C~2rXw 2016 02 14.30277 08 32 42.107 +12 25 27.36 22.0G 531917 F51 C~2rXw 2016 02 28.26440 08 31 32.164 +12 31 07.19 22.0G 531917 F51 C~2rXw 2016 02 28.27801 08 31 32.089 +12 31 07.60 22.4G 531917 F51 C~2rXw 2016 02 28.29155 08 31 32.029 +12 31 07.83 22.4G 531917 F51 C~2rXw 2016 03 07.26928 08 30 57.746 +12 34 15.53 22.3G 531917 F51 C~2rXw 2016 04 20.28806 08 29 38.520 +12 46 52.51 22.1G 531917 F51 C~2rXw 2017 01 26.37818 08 42 20.146 +11 53 36.52 21.9G 531917 F51 C~2rXw 2017 01 26.38900 08 42 20.093 +11 53 36.89 21.8G 531917 F51 C~2rXw 2017 01 26.39979 08 42 20.019 +11 53 37.01 22.0G 531917 F51 C~2rXw 2017 01 26.41074 08 42 19.950 +11 53 37.17 21.8G 531917 F51 C~2rXw 2017 02 03.46502 08 41 34.029 +11 56 47.22 21.8G 531917 F51 C~2rXw 2017 02 03.47640 08 41 33.961 +11 56 47.60 22.1G 531917 F51 C~2rXw 2017 02 03.48776 08 41 33.907 +11 56 48.09 22.3G 531917 F51 C~2rXw 2017 02 03.49915 08 41 33.841 +11 56 47.95 22.1G 531917 F51 C~2rXw 2017 02 19.23777 08 40 07.941 +12 03 21.17 20.7G 531917 F51 C~2rXw 2017 04 09.32885 08 37 26.907 +12 20 56.48 22.2G 531917 F51 C~2rXw 2017 04 11.36644 08 37 25.341 +12 21 25.44 22.0G 531917 F51 C~2rXw 2017 11 22.55235 08 54 27.735 +11 16 34.02 22.1G 531917 F51 C~2rXw 2017 11 22.56313 08 54 27.724 +11 16 34.27 22.4G 531917 F51 C~2rXw 2017 11 22.57398 08 54 27.701 +11 16 34.14 22.0G 531917 F51 C~2rXw 2017 11 22.58481 08 54 27.679 +11 16 34.12 22.2G 531917 F51 C~2rXw 2017 12 24.49000 08 53 01.671 +11 18 16.47 21.4G 531917 F51 C~2rXw 2018 01 12.55205 08 51 30.146 +11 23 10.37 22.1G 531917 F51 C~2rXw 2018 01 12.56543 08 51 30.074 +11 23 10.57 21.5G 531917 F51 C~2rXw 2018 01 12.57884 08 51 30.009 +11 23 10.92 21.5G 531917 F51 C~2rXw 2018 01 12.59232 08 51 29.948 +11 23 11.16 20.9G 531917 F51 C~2rXw 2018 02 18.32283 08 48 06.153 +11 37 40.21 21.8G 531917 F51 C~2rXw 2020 01 23.41499 09 06 05.762 +10 33 58.83 22.0w 531917 F51 C~3i3d 2020 01 23.42656 09 06 05.710 +10 33 59.27 22.0w 531917 F51 C~3i3d 2020 01 23.43808 09 06 05.638 +10 33 59.61 21.9w 531917 F51 C~3i3d 2020 01 23.44966 09 06 05.577 +10 33 59.73 22.0w 531917 F51 C~3i3d 2021 01 16.44174 09 14 18.839 +10 04 26.46 21.8w 531917 F51 C~4YAj 2021 01 16.45287 09 14 18.790 +10 04 26.95 21.9w 531917 F51 C~4YAj 2021 01 16.46396 09 14 18.734 +10 04 27.05 21.9w 531917 F51 C~4YAj 2021 02 07.378135 09 12 19.413 +10 13 22.41 21.9w 531917 F51 C~4w8j 2021 02 07.389770 09 12 19.352 +10 13 23.11 22.1w 531917 F51 C~4w8j 2021 02 07.401465 09 12 19.300 +10 13 23.26 22.1w 531917 F51 C~4w8j 2022 12 26.452230 09 30 57.682 +09 02 40.50 21.9G 531917 G37 C~6B0y 2022 12 26.495330 09 30 57.569 +09 02 40.29 531917 G37 C~6B0y 2022 12 26.538000 09 30 57.366 +09 02 40.93 531917 G37 C~6B0y 2023 01 23.427065 09 28 53.921 +09 10 54.49 22.0w 531917 F52 C~6DAH 2023 01 23.439186 09 28 53.862 +09 10 54.74 21.7w 531917 F52 C~6DAH 2023 01 23.451384 09 28 53.804 +09 10 54.90 21.9w 531917 F52 C~6DAH 2023 01 23.463631 09 28 53.729 +09 10 55.30 21.8w 531917 F52 C~6DAH 2024 01 20.393963 09 36 39.583 +08 41 00.89 22.0w 531917 F51 C~7ljI 2024 01 20.411279 09 36 39.530 +08 41 00.58 22.2w 531917 F51 C~7ljI 2024 01 20.422962 09 36 39.467 +08 41 01.28 21.9w 531917 F51 C~7ljI
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 0.09
2 0.0000 0.00 -0.04 0.00 0.09
3 0.0000 0.00 -0.05 0.00 0.10
4 3.1265 0.00 -0.03 0.00 0.04
5 3.1265 0.00 -0.08 0.00 -0.11
6 3.1678 0.00 -0.06 0.00 -0.02
7 3.4438 0.00 0.57 0.00 -0.21
8 3.9402 0.00 0.02 0.00 -0.07
9 4.1618 0.00 0.16 0.00 -0.31
10 4.1618 0.00 -0.17 0.00 -0.01
11 4.1698 0.00 -0.06 0.00 0.10
12 4.1698 0.00 0.03 0.00 -0.04
13 4.1780 0.00 0.05 0.00 0.08
14 5.1392 0.00 -0.03 0.00 -0.08
15 5.1392 0.00 -0.14 0.00 0.11
16 5.1556 0.00 -0.13 0.00 0.04
17 5.1556 0.00 -0.31 0.00 -0.13
18 6.1466 0.00 0.27 0.00 0.06
19 6.1466 0.00 0.08 0.00 0.18
20 6.1467 0.00 0.13 0.00 0.03
21 6.1467 0.00 0.01 0.00 0.08
22 6.1575 0.00 -0.18 0.00 0.11
23 6.1575 0.00 -0.06 0.00 -0.03
24 6.2121 0.00 0.04 0.00 -0.02
25 6.2121 0.00 0.02 0.00 0.15
26 6.2122 0.00 0.08 0.00 -0.02
27 6.2122 0.00 0.05 0.00 0.01
28 6.9081 0.00 0.10 0.00 -0.14
29 7.0832 0.00 0.06 0.00 -0.10
30 7.0833 0.00 -0.04 0.00 0.39
31 7.8499 0.00 0.02 0.00 0.08
32 8.0111 0.00 -0.17 0.00 -0.07
33 8.0111 0.00 -0.03 0.00 -0.12
34 8.0112 0.00 0.11 0.00 0.09
35 8.0112 0.00 0.11 0.00 -0.16
36 8.1645 0.00 -0.05 0.00 0.04
37 8.1699 0.00 -0.11 0.00 -0.08
38 8.1699 0.00 -0.08 0.00 0.06
39 8.1700 0.00 0.08 0.00 -0.05
40 8.1700 0.00 0.03 0.00 0.05
41 8.1804 0.00 0.24 0.00 -0.35
42 8.1804 0.00 -0.53 0.00 0.14
43 8.2323 0.00 0.10 0.00 0.08
44 8.2350 0.00 -0.15 0.00 -0.14
45 8.2350 0.00 0.07 0.00 0.02
46 8.2350 0.00 0.03 0.00 -0.01
47 8.2350 0.00 0.04 0.00 -0.01
48 8.2351 0.00 -0.25 0.00 -0.07
49 8.2351 0.00 -0.06 0.00 -0.03
50 8.2351 0.00 0.05 0.00 -0.05
51 8.2351 0.00 -0.15 0.00 -0.05
52 8.8874 0.00 -0.10 0.00 0.08
53 9.1091 0.00 -0.05 0.00 -0.12
54 9.1091 0.00 0.04 0.00 -0.05
55 9.1091 0.00 -0.01 0.00 -0.04
56 9.1092 0.00 0.01 0.00 -0.05
57 9.1173 0.00 0.03 0.00 -0.06
58 9.1173 0.00 0.15 0.00 -0.22
59 9.1174 0.00 0.08 0.00 0.40
60 9.1174 0.00 0.34 0.00 0.11
61 9.1551 0.00 -0.11 0.00 0.32
62 9.1852 0.00 -0.12 0.00 -0.68
63 9.1853 0.00 0.18 0.00 -0.71
64 9.2207 0.00 0.11 0.00 0.07
65 9.2589 0.00 0.08 0.00 0.05
66 9.2589 0.00 -0.09 0.00 0.13
67 9.2590 0.00 -0.04 0.00 0.04
68 9.2808 0.00 0.01 0.00 0.00
69 9.4013 0.00 -0.10 0.00 0.01
70 10.1709 0.00 -0.00 0.00 -0.02
71 10.1709 0.00 0.14 0.00 0.10
72 10.1710 0.00 -0.03 0.00 -0.03
73 10.1710 0.00 -0.11 0.00 -0.12
74 10.1931 0.00 0.06 0.00 -0.06
75 10.1931 0.00 0.02 0.00 0.05
76 10.1931 0.00 0.19 0.00 0.26
77 10.1931 0.00 0.19 0.00 -0.15
78 10.2362 0.00 0.17 0.00 0.48
79 10.3706 0.00 0.05 0.00 0.32
80 10.3762 0.00 -0.17 0.00 0.13
81 10.9927 0.00 -0.05 0.00 -0.08
82 10.9928 0.00 -0.03 0.00 0.22
83 10.9928 0.00 -0.19 0.00 0.15
84 10.9928 0.00 -0.34 0.00 0.18
85 11.0802 0.00 0.08 0.00 0.04
86 11.1324 0.00 -0.04 0.00 -0.03
87 11.1324 0.00 -0.04 0.00 -0.09
88 11.1324 0.00 0.07 0.00 0.01
89 11.1325 0.00 0.25 0.00 -0.01
90 11.2330 0.00 -0.13 0.00 -0.28
91 13.1607 0.00 -0.21 0.00 -0.13
92 13.1608 0.00 -0.02 0.00 0.04
93 13.1608 0.00 -0.14 0.00 0.11
94 13.1608 0.00 -0.09 0.00 -0.04
95 14.1437 0.00 -0.09 0.00 -0.10
96 14.1437 0.00 0.06 0.00 0.16
97 14.1438 0.00 0.09 0.00 0.02
98 14.2038 0.00 -0.16 0.00 -0.10
99 14.2038 0.00 -0.09 0.00 0.28
100 14.2038 0.00 0.13 0.00 0.11
101 16.0849 0.00 0.12 0.00 0.29
102 16.0850 0.00 0.70 0.00 -0.38
103 16.0851 0.00 -0.10 0.00 -0.20
104 16.1615 0.00 -0.20 0.00 0.05
105 16.1615 0.00 -0.13 0.00 0.01
106 16.1615 0.00 -0.03 0.00 -0.12
107 16.1616 0.00 -0.18 0.00 -0.01
108 17.1525 0.00 -0.26 0.00 0.31
109 17.1525 0.00 0.25 0.00 -0.38
110 17.1526 0.00 0.19 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.
531917 quality flag:3 Type: 7:4EEE 7:4EEE 7:4EEE axisobj 43.888 43.888 43.888 ecceobj 0.213 0.213 0.213 incobj 6.601 6.601 6.601 qmin 34.043 34.043 34.043 qmax 53.875 53.876 53.875 amean 43.727 43.727 43.726 amin 43.279 43.306 43.294 amax 44.236 44.236 44.236 emean 0.169 0.167 0.167 emin 0.126 0.126 0.126 emax 0.219 0.219 0.219 imean 9.487 9.574 9.561 imin 6.664 6.664 6.664 imax 11.509 11.505 11.512 excite_mean 0.237 0.237 0.237 fracstop 1.000 1.000 1.000 cjmean 3.030 3.030 3.030 libcent 0 182.6 182.4 183.8 libamp 0 98.0 98.1 99.1 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 268.8 268.2 268.1 kozaiamp 34.7 34.5 34.6