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: 768325 # Created Tue Apr 1 01:07:52 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: 1.458801E-05 1.649040E-02 2.971988E-07 3.004974E-04 1.796574E-02 -1.258187E-02 # 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 -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 +/- 0.000 Argument of Peri: 347.79980 +/- 0.000 Long of Asc Node: 135.34798 +/- 0.000 Inclination: 54.10684 +/- 0.000 Eccentricity: 0.92600047 +/- 0.0000 Semi-Major Axis: 476.75066846 +/- 0.0000 Time of Perihelion: 2472977.3469 +/- 0.0 Perihelion: 35.27932666 +/- 0.0000 Aphelion: 918.22201027 +/- 0.0000 Period (y) 10409.8667 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 21.77404172 +/- 0.0000 Ecliptic Y 24.31072382 +/- 0.0000 Ecliptic Z -45.04250066 +/- 0.0000 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 55.62386172 +/- 0.0000 Geocenter to KBO 55.66215504 +/- 0.0000 # Hcoef: 4.23
The following table shows the complete astrometric record for 768325. 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 (768325) 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 768325 W84 C~4yW0 2014 11 27.32842 04 09 43.643 -35 15 45.73 22.7g 768325 W84 C~4yW0 2014 11 27.33115 04 09 43.632 -35 15 45.72 21.5i 768325 W84 C~4yW0 2015 01 17.18674 04 06 29.036 -34 57 37.79 21.6r 768325 W84 C~4yW0 2015 01 17.18951 04 06 29.027 -34 57 37.66 22.6g 768325 W84 C~4yW0 2015 01 26.13251 04 06 10.101 -34 50 52.46 21.7r 768325 W84 C~4yW0 2015 01 27.08971 04 06 08.458 -34 50 06.42 21.2z 768325 W84 C~4yW0 2015 01 28.10786 04 06 06.792 -34 49 16.79 21.3z 768325 W84 C~4yW0 2015 01 28.12083 04 06 06.768 -34 49 16.17 21.5i 768325 W84 C~4yW0 2015 01 30.11816 04 06 03.754 -34 47 37.39 21.5i 768325 W84 C~4yW0 2015 02 01.04691 04 06 01.172 -34 46 00.20 21.1z 768325 W84 C~4yW0 2015 02 10.10854 04 05 53.273 -34 38 03.05 21.7r 768325 W84 C~4yW0 2015 02 11.05026 04 05 52.874 -34 37 11.82 21.7r 768325 W84 C~4yW0 2015 02 12.11980 04 05 52.501 -34 36 13.19 22.4g 768325 W84 C~4yW0 2015 11 20.33616 04 14 48.579 -34 53 15.70 21.6r 768325 W84 C~4yW0 2015 11 20.35065 04 14 48.516 -34 53 15.83 21.5i 768325 W84 C~4yW0 2015 12 09.28438 04 13 22.092 -34 53 31.67 22.4g 768325 W84 C~4yW0 2016 02 05.07081 04 10 23.109 -34 21 18.95 21.4r 768325 W84 C~4yW0 2016 02 05.07220 04 10 23.104 -34 21 18.93 22.0g 768325 W84 C~4yW0 2016 11 17.28184 04 19 35.244 -34 29 48.49 21.2Y 768325 W84 C~4yW0 2016 12 02.24481 04 18 26.319 -34 31 14.85 21.2i 768325 W84 C~4yW0 2016 12 02.24619 04 18 26.315 -34 31 14.87 21.5r 768325 W84 C~4yW0 2016 12 02.247576 04 18 26.301 -34 31 14.93 22.1g 768325 W84 C~2dZL 2017 01 18.19247 04 15 25.170 -34 12 35.85 21.4z 768325 W84 C~4yW0 2017 02 02.14779 04 14 56.001 -34 00 36.19 21.6r 768325 W84 C~4yW0 2017 02 02.14916 04 14 55.997 -34 00 36.11 21.3i 768325 W84 C~4yW0 2017 02 02.15053 04 14 55.993 -34 00 36.06 22.6g 768325 W84 C~4yW0 2017 02 18.025400 04 14 46.203 -33 46 01.12 21.6r 768325 W84 C~2dZL 2017 02 18.06246 04 14 46.203 -33 45 59.01 21.6r 768325 W84 C~4yW0 2017 08 06.398316 04 26 32.994 -32 54 57.90 768325 W84 C~2dZL 2017 08 07.379034 04 26 35.748 -32 55 39.39 768325 W84 C~2dZL 2017 08 07.419462 04 26 35.856 -32 55 41.20 768325 W84 C~2dZL 2017 12 06.25847 04 22 48.708 -34 06 56.97 21.1z 768325 W84 C~4yW0 2017 12 11.29018 04 22 25.549 -34 06 20.65 21.5r 768325 W84 C~4yW0 2018 01 10.137691 04 20 25.824 -33 54 22.64 22.4g 768325 W84 C~2dZL 2018 01 24.09748 04 19 47.591 -33 44 28.93 21.2z 768325 W84 C~4yW0 2018 02 15.101904 04 19 19.707 -33 25 05.52 22.3g 768325 W84 C~2dZL 2018 10 22.37760 04 30 47.319 -33 28 23.71 20.9Y 768325 W84 C~4yW0 2018 11 29.32106 04 28 06.613 -33 41 33.85 21.5r 768325 W84 C~4yW0 2018 12 06.05245 04 27 34.932 -33 41 32.72 22.3g 768325 W84 C~4yW0 2022 10 31.23797 04 49 59.36 -31 34 54.1 21.1G 768325 X01 C~5z4N 2022 11 01.27007 04 49 55.48 -31 35 27.9 21.0G 768325 X01 C~5z4N 2022 12 04.418866 04 47 26.624 -31 44 59.62 20.5i 768325 F51 C~678U 2022 12 04.430644 04 47 26.569 -31 44 59.49 20.6i 768325 F51 C~678U 2022 12 04.442431 04 47 26.507 -31 44 59.54 20.4i 768325 F51 C~678U 2023 01 19.285060 04 44 10.265 -31 27 52.13 21.3w 768325 F52 C~6B8e 2023 01 19.294623 04 44 10.228 -31 27 51.87 21.3w 768325 F52 C~6B8e 2023 01 19.304156 04 44 10.190 -31 27 51.19 21.2w 768325 F52 C~6B8e 2023 01 19.313693 04 44 10.164 -31 27 50.91 21.4w 768325 F52 C~6B8e 2024 01 20.239852 04 49 13.084 -30 54 41.65 21.4w 768325 F51 C~7grk 2024 01 20.250868 04 49 13.068 -30 54 41.30 21.2w 768325 F51 C~7grk 2024 01 20.262689 04 49 13.038 -30 54 40.74 21.3w 768325 F51 C~7grk 2024 11 28.416530 04 58 15.463 -30 36 49.87 21.3w 768325 F51 C~8SUJ 2024 11 28.427539 04 58 15.408 -30 36 50.07 21.1w 768325 F51 C~8SUJ 2024 11 28.438554 04 58 15.356 -30 36 50.09 21.2w 768325 F51 C~8SUJ 2024 11 28.449557 04 58 15.303 -30 36 50.23 21.1w 768325 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.
768325 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 32.713 32.804 32.758 qmax 1063.106 960.633 1014.997 amean 468.364 440.700 453.778 amin 427.505 393.681 412.613 amax 549.204 498.021 525.165 emean 0.924 0.920 0.922 emin 0.915 0.908 0.913 emax 0.936 0.929 0.933 imean 52.713 52.764 52.731 imin 50.154 50.327 50.176 imax 55.353 55.240 55.338 excite_mean 1.220 1.216 1.218 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 349.3 349.1 349.3 kozaiamp 2.2 1.8 1.5