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: 523642 # Created Sun Jul 27 01:07:07 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 108 observations of 108 # Arc: 15.87y # First observation: 2009/01/21 # Last observation: 2024/12/06 # Chi-squared of fit: 69.16 DOF: 210 RMS: 0.14 # Min/Max residuals: -0.54 0.40 # Exact a, adot, b, bdot, g, gdot: 1.316796E-05 2.094668E-02 8.441718E-06 1.208353E-02 2.414887E-02 -5.386555E-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 18.666986 9.797583 -0.921742 -0.114784 0.339855 2454852.635313 # Heliocentric elements and errors Epoch: 2454852.5000 = 2009/01/21 Mean Anomaly: 307.18896 +/- 0.000 Argument of Peri: 110.52188 +/- 0.000 Long of Asc Node: 341.33720 +/- 0.000 Inclination: 34.43486 +/- 0.000 Eccentricity: 0.21625616 +/- 0.0000 Semi-Major Axis: 45.39410647 +/- 0.0000 Time of Perihelion: 2471240.2707 +/- 0.0 Perihelion: 35.57735151 +/- 0.0000 Aphelion: 55.21086143 +/- 0.0000 Period (y) 305.8492 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 38.15094951 +/- 0.0000 Ecliptic Y 7.51925450 +/- 0.0000 Ecliptic Z 13.25424861 +/- 0.0000 Ecliptic XDOT -0.00140088 +/- 0.0000 Ecliptic YDOT 0.00217019 +/- 0.0000 Ecliptic ZDOT 0.00110232 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.08186922 +/- 0.0000 Geocenter to KBO 41.40999226 +/- 0.0000 # Hcoef: 5.66
The following table shows the complete astrometric record for 523642. 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 (523642) followed by the observatory code and reference code for the source of the astrometry.
2009 01 21.134547 00 05 03.34 +20 57 51.0 21.8V 523642 645 C~2PON 2009 01 21.135376 00 05 03.35 +20 57 50.9 21.7V 523642 645 C~2PON 2009 01 21.137864 00 05 03.34 +20 57 51.1 22.6V 523642 645 C~2PON 2010 09 17.51291 00 16 44.583 +24 09 20.42 21.7r 523642 F51 C~1w3k 2010 09 17.51432 00 16 44.574 +24 09 20.39 21.5r 523642 F51 C~1w3k 2010 09 17.52501 00 16 44.524 +24 09 20.32 21.8r 523642 F51 C~1w3k 2010 09 17.52641 00 16 44.510 +24 09 20.20 21.6r 523642 F51 C~1w3k 2010 10 08.31269 00 14 54.333 +24 01 52.71 21.0G 523642 F51 C~2kMk 2010 10 15.25684 00 14 18.573 +23 58 32.21 21.3r 523642 F51 C~1w3k 2010 10 15.26880 00 14 18.548 +23 58 32.01 21.9r 523642 F51 C~1w3k 2010 11 01.19769 00 12 59.172 +23 49 12.69 22.3G 523642 F51 C~2kMk 2010 11 03.36277 00 12 50.091 +23 47 56.24 22.0i 523642 F51 C~1w3k 2010 11 03.37477 00 12 50.034 +23 47 56.12 21.9i 523642 F51 C~1w3k 2011 09 21.51179 00 20 16.623 +25 19 11.74 21.4r 523642 F51 C~1w3k 2011 09 21.52447 00 20 16.565 +25 19 11.75 21.4i 523642 F51 C~1w3k 2011 09 21.53574 00 20 16.495 +25 19 11.48 21.6i 523642 F51 C~1w3k 2011 09 25.34406 00 19 56.023 +25 18 03.41 22.0g 523642 F51 C~1w3k 2011 10 19.26441 00 17 49.330 +25 07 42.20 21.9w 523642 F51 C~1w3k 2011 10 19.27827 00 17 49.259 +25 07 41.71 21.8w 523642 F51 C~1w3k 2011 10 19.29215 00 17 49.189 +25 07 41.38 21.9w 523642 F51 C~1w3k 2011 10 19.30612 00 17 49.106 +25 07 40.77 22.0w 523642 F51 C~1w3k 2012 10 05.51218 00 22 54.379 +26 25 21.76 21.1i 523642 F51 C~1w3k 2013 08 28.55981 00 30 19.352 +27 43 54.37 21.3i 523642 F51 C~1w3k 2013 08 28.57196 00 30 19.290 +27 43 54.48 21.3i 523642 F51 C~1w3k 2013 09 04.55356 00 29 46.321 +27 44 04.66 22.0g 523642 F51 C~1w3k 2013 09 08.55065 00 29 26.342 +27 43 52.20 22.2g 523642 F51 C~1w3k 2013 09 08.58946 00 29 26.160 +27 43 51.76 21.6r 523642 F51 C~1w3k 2013 10 25.27873 00 25 14.768 +27 27 22.56 21.7G 523642 F51 C~2kMk 2013 11 19.37447 00 23 29.403 +27 11 51.70 20.1G 523642 F51 C~2kMk 2014 10 28.30033 00 29 10.075 +28 37 47.70 20.9G 523642 F51 C~2kMk 2014 12 11.33558 00 26 43.694 +28 09 57.39 21.8G 523642 F51 C~2kMk 2015 10 23.26124 00 33 54.522 +29 53 00.06 22.3G 523642 F51 C~2kMk 2015 10 23.27350 00 33 54.435 +29 52 59.89 21.9G 523642 F51 C~2kMk 2015 10 23.28592 00 33 54.352 +29 52 59.56 21.9G 523642 F51 C~2kMk 2015 10 23.29819 00 33 54.300 +29 52 58.91 22.0G 523642 F51 C~2kMk 2016 01 19.20082 00 31 21.860 +29 04 02.79 21.3G 523642 F51 C~2kMk 2016 07 22.54630 00 45 12.395 +31 01 57.75 21.7G 523642 F51 C~2kMk 2016 07 22.55844 00 45 12.374 +31 01 58.19 21.5G 523642 F51 C~2kMk 2016 07 22.57056 00 45 12.358 +31 01 58.63 22.0G 523642 F51 C~2kMk 2016 07 22.58275 00 45 12.340 +31 01 59.15 21.9G 523642 F51 C~2kMk 2016 10 10.32180 00 39 29.560 +31 11 14.84 21.5G 523642 F51 C~2kMk 2016 10 10.33338 00 39 29.490 +31 11 14.47 22.1G 523642 F51 C~2kMk 2016 10 10.34471 00 39 29.427 +31 11 14.37 22.3G 523642 F51 C~2kMk 2016 10 10.35609 00 39 29.364 +31 11 13.88 21.5G 523642 F51 C~2kMk 2016 11 05.25745 00 37 09.810 +30 57 09.03 21.3G 523642 F51 C~2kMk 2017 08 06.62640 00 49 21.362 +32 20 45.49 21.9G 523642 F51 C~2kMk 2017 10 27.30622 00 42 30.961 +32 15 11.31 21.6G 523642 F51 C~2kMk 2017 10 27.31725 00 42 30.916 +32 15 11.12 22.0G 523642 F51 C~2kMk 2017 11 09.38381 00 41 24.730 +32 07 03.24 22.1G 523642 F51 C~2kMk 2017 11 09.39571 00 41 24.674 +32 07 02.95 22.0G 523642 F51 C~2kMk 2017 11 09.40755 00 41 24.610 +32 07 02.49 22.1G 523642 F51 C~2kMk 2017 11 09.41945 00 41 24.553 +32 07 02.02 21.9G 523642 F51 C~2kMk 2017 11 21.21249 00 40 35.048 +31 58 59.32 21.5G 523642 F51 C~2kMk 2017 11 21.22471 00 40 35.003 +31 58 58.77 21.4G 523642 F51 C~2kMk 2017 11 21.23685 00 40 34.961 +31 58 58.44 21.8G 523642 F51 C~2kMk 2017 11 21.24909 00 40 34.909 +31 58 57.80 21.5G 523642 F51 C~2kMk 2017 12 12.28943 00 39 38.708 +31 44 29.87 21.3G 523642 F51 C~2kMk 2017 12 12.30015 00 39 38.697 +31 44 29.42 21.6G 523642 F51 C~2kMk 2017 12 12.31094 00 39 38.686 +31 44 28.80 21.4G 523642 F51 C~2kMk 2017 12 12.32172 00 39 38.661 +31 44 28.50 21.7G 523642 F51 C~2kMk 2017 12 26.20761 00 39 27.873 +31 35 55.59 22.2G 523642 F51 C~2kMk 2018 01 31.27462 00 40 41.761 +31 22 30.80 22.7G 523642 F51 C~2kMk 2020 08 04.57285 01 04 23.057 +35 50 13.59 21.4i 523642 F51 C~43oU 2020 08 04.58213 01 04 23.038 +35 50 13.72 21.2i 523642 F51 C~43oU 2020 08 04.59138 01 04 23.019 +35 50 14.36 21.2i 523642 F51 C~43oU 2020 08 04.60051 01 04 23.008 +35 50 14.56 21.2i 523642 F51 C~43oU 2020 09 03.50319 01 02 36.540 +36 03 03.71 21.1z 523642 F51 C~47rp 2020 09 03.51397 01 02 36.490 +36 03 03.73 21.1z 523642 F51 C~47rp 2020 09 03.53557 01 02 36.387 +36 03 04.02 21.3z 523642 F51 C~47rp 2020 09 04.55421 01 02 31.398 +36 03 16.12 21.4i 523642 F51 C~49AZ 2020 09 04.57665 01 02 31.254 +36 03 16.10 21.1i 523642 F51 C~49AZ 2020 09 04.58802 01 02 31.208 +36 03 16.34 21.0i 523642 F51 C~49AZ 2020 09 09.41068 01 02 06.583 +36 04 00.29 21.4i 523642 F51 C~4Ijv 2020 09 09.41979 01 02 06.523 +36 04 00.35 21.5i 523642 F51 C~4Ijv 2020 09 09.42894 01 02 06.492 +36 04 00.41 21.2i 523642 F51 C~4Ijv 2020 09 09.43810 01 02 06.443 +36 04 00.60 21.5i 523642 F51 C~4Ijv 2020 09 10.47679 01 02 00.921 +36 04 07.23 21.4i 523642 F51 C~4Ijv 2020 09 10.48909 01 02 00.853 +36 04 07.17 21.3i 523642 F51 C~4Ijv 2020 09 10.50254 01 02 00.796 +36 04 07.17 21.0i 523642 F51 C~4Ijv 2020 09 10.51666 01 02 00.705 +36 04 07.25 21.4i 523642 F51 C~4Ijv 2020 09 27.38238 01 00 23.541 +36 03 31.27 21.3i 523642 F51 C~4Ijv 2020 09 27.39162 01 00 23.455 +36 03 30.90 21.4i 523642 F51 C~4Ijv 2020 09 27.40083 01 00 23.420 +36 03 31.21 21.1i 523642 F51 C~4Ijv 2020 11 03.38971 00 56 38.948 +35 48 11.36 21.0i 523642 F51 C~4MWp 2020 11 03.39943 00 56 38.912 +35 48 11.35 21.2i 523642 F51 C~4MWp 2020 11 03.40911 00 56 38.846 +35 48 11.00 21.3i 523642 F51 C~4MWp 2020 11 03.41885 00 56 38.805 +35 48 10.42 21.1i 523642 F51 C~4MWp 2020 11 04.37871 00 56 33.537 +35 47 34.68 21.4i 523642 F51 C~4MWp 2020 11 04.39690 00 56 33.408 +35 47 33.84 21.2i 523642 F51 C~4MWp 2020 11 04.40600 00 56 33.351 +35 47 33.71 21.2i 523642 F51 C~4MWp 2021 10 14.290756 01 04 03.464 +37 10 48.99 21.2i 523642 F52 C~59OG 2021 10 14.301728 01 04 03.380 +37 10 48.69 21.3i 523642 F52 C~59OG 2021 10 14.312705 01 04 03.312 +37 10 48.33 21.0i 523642 F52 C~59OG 2022 10 17.454604 01 09 21.713 +38 21 34.39 21.5w 523642 F51 C~5yhc 2022 10 17.466603 01 09 21.642 +38 21 34.20 21.6w 523642 F51 C~5yhc 2022 10 17.490735 01 09 21.494 +38 21 33.44 21.5w 523642 F51 C~5yhc 2022 11 01.398581 01 07 47.707 +38 14 13.08 21.6w 523642 F51 C~62mO 2022 11 01.410520 01 07 47.638 +38 14 12.84 21.4w 523642 F51 C~62mO 2022 11 01.422440 01 07 47.552 +38 14 12.23 21.4w 523642 F51 C~62mO 2022 11 01.434375 01 07 47.497 +38 14 11.84 21.3w 523642 F51 C~62mO 2024 09 12.518891 01 24 57.815 +40 46 48.91 21.4w 523642 F52 C~8Gcs 2024 09 12.530840 01 24 57.761 +40 46 49.09 21.4w 523642 F52 C~8Gcs 2024 09 12.542737 01 24 57.689 +40 46 49.29 21.4w 523642 F52 C~8Gcs 2024 09 12.554595 01 24 57.626 +40 46 49.42 21.3w 523642 F52 C~8Gcs 2024 12 06.214355 01 16 36.306 +40 12 48.68 21.1w 523642 F52 C~8W8m 2024 12 06.225884 01 16 36.255 +40 12 48.06 21.6w 523642 F52 C~8W8m 2024 12 06.239757 01 16 36.206 +40 12 47.16 21.2w 523642 F52 C~8W8m 2024 12 06.251370 01 16 36.175 +40 12 46.85 21.3w 523642 F52 C~8W8m
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 0.16 0.00 -0.05
2 0.0000 0.00 0.27 0.00 -0.15
3 0.0000 0.00 -0.01 0.00 0.05
4 1.6547 0.00 -0.07 0.00 0.17
5 1.6547 0.00 -0.09 0.00 0.16
6 1.6547 0.00 0.01 0.00 0.25
7 1.6547 0.00 -0.08 0.00 0.16
8 1.7116 0.00 -0.08 0.00 -0.21
9 1.7307 0.00 -0.18 0.00 -0.11
10 1.7307 0.00 0.36 0.00 0.05
11 1.7770 0.00 -0.17 0.00 -0.14
12 1.7830 0.00 -0.44 0.00 -0.39
13 1.7830 0.00 -0.54 0.00 -0.09
14 2.6650 0.00 -0.02 0.00 -0.11
15 2.6650 0.00 0.15 0.00 0.11
16 2.6650 0.00 0.01 0.00 0.03
17 2.6755 0.00 -0.20 0.00 0.02
18 2.7409 0.00 0.04 0.00 0.17
19 2.7410 0.00 0.03 0.00 0.12
20 2.7410 0.00 0.04 0.00 0.23
21 2.7411 0.00 -0.13 0.00 0.06
22 3.7053 0.00 -0.27 0.00 0.07
23 4.6008 0.00 0.09 0.00 0.03
24 4.6008 0.00 -0.00 0.00 0.09
25 4.6199 0.00 -0.07 0.00 0.16
26 4.6308 0.00 0.05 0.00 0.01
27 4.6310 0.00 0.33 0.00 -0.23
28 4.7588 0.00 -0.03 0.00 -0.03
29 4.8275 0.00 0.15 0.00 -0.02
30 5.7664 0.00 0.25 0.00 0.06
31 5.8869 0.00 0.13 0.00 0.15
32 6.7519 0.00 0.40 0.00 -0.19
33 6.7519 0.00 0.09 0.00 0.04
34 6.7520 0.00 -0.15 0.00 0.12
35 6.7520 0.00 0.07 0.00 -0.13
36 6.9927 0.00 0.39 0.00 -0.01
37 7.5001 0.00 0.07 0.00 0.01
38 7.5001 0.00 -0.01 0.00 -0.03
39 7.5002 0.00 -0.01 0.00 -0.07
40 7.5002 0.00 -0.04 0.00 -0.03
41 7.7185 0.00 -0.07 0.00 -0.01
42 7.7185 0.00 -0.10 0.00 -0.09
43 7.7186 0.00 -0.05 0.00 0.10
44 7.7186 0.00 0.01 0.00 -0.11
45 7.7895 0.00 -0.12 0.00 -0.07
46 8.5407 0.00 0.01 0.00 0.03
47 8.7643 0.00 -0.20 0.00 -0.20
48 8.7644 0.00 0.04 0.00 -0.01
49 8.8001 0.00 0.06 0.00 -0.11
50 8.8002 0.00 0.07 0.00 0.07
51 8.8002 0.00 -0.04 0.00 0.09
52 8.8002 0.00 -0.05 0.00 0.09
53 8.8325 0.00 -0.05 0.00 -0.04
54 8.8326 0.00 -0.03 0.00 -0.08
55 8.8326 0.00 0.03 0.00 0.10
56 8.8326 0.00 -0.05 0.00 -0.04
57 8.8902 0.00 -0.04 0.00 -0.04
58 8.8903 0.00 0.07 0.00 -0.06
59 8.8903 0.00 0.17 0.00 -0.25
60 8.8903 0.00 0.06 0.00 -0.13
61 8.9283 0.00 0.08 0.00 -0.05
62 9.0271 0.00 0.10 0.00 0.13
63 11.5358 0.00 -0.13 0.00 0.08
64 11.5358 0.00 -0.11 0.00 -0.14
65 11.5358 0.00 -0.09 0.00 0.14
66 11.5358 0.00 0.04 0.00 -0.01
67 11.6177 0.00 0.07 0.00 0.21
68 11.6177 0.00 0.12 0.00 0.10
69 11.6178 0.00 0.19 0.00 0.12
70 11.6206 0.00 0.31 0.00 0.11
71 11.6206 0.00 -0.15 0.00 -0.16
72 11.6207 0.00 0.02 0.00 -0.05
73 11.6339 0.00 -0.08 0.00 -0.09
74 11.6339 0.00 -0.25 0.00 -0.10
75 11.6339 0.00 0.02 0.00 -0.11
76 11.6340 0.00 0.02 0.00 0.02
77 11.6368 0.00 -0.13 0.00 0.05
78 11.6368 0.00 -0.14 0.00 -0.08
79 11.6369 0.00 0.10 0.00 -0.16
80 11.6369 0.00 -0.11 0.00 -0.16
81 11.6831 0.00 0.18 0.00 0.03
82 11.6831 0.00 -0.25 0.00 -0.25
83 11.6831 0.00 0.08 0.00 0.15
84 11.7844 0.00 -0.10 0.00 -0.21
85 11.7844 0.00 0.18 0.00 0.14
86 11.7845 0.00 0.01 0.00 0.15
87 11.7845 0.00 0.22 0.00 -0.06
88 11.7871 0.00 0.35 0.00 0.16
89 11.7872 0.00 -0.06 0.00 0.01
90 11.7872 0.00 -0.15 0.00 0.23
91 12.7287 0.00 0.18 0.00 0.09
92 12.7287 0.00 -0.02 0.00 0.04
93 12.7288 0.00 0.03 0.00 -0.08
94 13.7367 0.00 -0.12 0.00 -0.01
95 13.7367 0.00 -0.00 0.00 0.09
96 13.7368 0.00 0.16 0.00 -0.08
97 13.7776 0.00 -0.21 0.00 -0.03
98 13.7776 0.00 -0.15 0.00 0.15
99 13.7777 0.00 -0.34 0.00 -0.04
100 13.7777 0.00 -0.07 0.00 -0.01
101 15.6424 0.00 -0.12 0.00 0.01
102 15.6424 0.00 0.07 0.00 0.04
103 15.6425 0.00 -0.01 0.00 0.09
104 15.6425 0.00 0.04 0.00 0.07
105 15.8743 0.00 0.00 0.00 0.13
106 15.8743 0.00 -0.12 0.00 0.05
107 15.8743 0.00 -0.09 0.00 -0.19
108 15.8744 0.00 0.09 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.
523642 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 45.716 45.716 45.716 ecceobj 0.221 0.221 0.221 incobj 34.418 34.418 34.418 qmin 34.782 34.804 34.799 qmax 56.438 56.388 56.416 amean 45.382 45.381 45.382 amin 44.989 44.996 45.001 amax 45.831 45.834 45.829 emean 0.212 0.212 0.212 emin 0.193 0.193 0.193 emax 0.231 0.231 0.231 imean 35.432 35.432 35.432 imin 35.129 35.124 35.130 imax 35.819 35.833 35.803 excite_mean 0.617 0.617 0.617 fracstop 1.000 1.000 1.000 cjmean 2.619 2.619 2.619 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 200.3 200.3 200.4 kozaiamp 180.0 180.0 180.0