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: 24XA11 # Created Tue Jan 21 02:11:45 2025 # Orbit generated from Bernstein formalism # Fitting 31 observations of 31 # Arc: 1.08y # First observation: 2023/12/09 # Last observation: 2025/01/05 Preliminary a, adot, b, bdot, g, gdot: 0.000090 0.240773 -0.000298 -0.141249 0.134309 0.000000 # Chi-squared of fit: 25.61 DOF: 56 RMS: 0.16 # Min/Max residuals: -0.61 0.22 # Exact a, adot, b, bdot, g, gdot: 3.001102E-05 2.131991E-01 -1.800298E-05 -1.255966E-01 1.097065E-01 -1.042458E-01 # Covariance matrix: 3.6714E-13 -4.1614E-13 6.8212E-17 2.8995E-14 -7.9943E-14 -2.0545E-13 -4.1614E-13 6.9251E-11 3.9506E-13 -4.0969E-11 2.5314E-11 2.8520E-10 6.8212E-17 3.9506E-13 3.6712E-13 -6.0016E-13 1.3566E-13 1.6377E-12 2.8995E-14 -4.0969E-11 -6.0016E-13 2.4787E-11 -1.5023E-11 -1.6972E-10 -7.9943E-14 2.5314E-11 1.3566E-13 -1.5023E-11 1.0924E-11 1.0468E-10 -2.0545E-13 2.8520E-10 1.6377E-12 -1.6972E-10 1.0468E-10 1.1815E-09 # lat0 lon0 xBary yBary zBary JD0 22.598647 51.398503 -0.423916 0.339613 -0.816350 2460287.787654 # Heliocentric elements and errors Epoch: 2460280.5000 = 2023/12/02 Mean Anomaly: 347.06782 +/- 0.008 Argument of Peri: 198.99861 +/- 0.010 Long of Asc Node: 263.74483 +/- 0.000 Inclination: 37.13703 +/- 0.000 Eccentricity: 0.58905351 +/- 0.0002 Semi-Major Axis: 20.43535242 +/- 0.0081 Time of Perihelion: 2461492.6064 +/- 0.1 Perihelion: 8.39783640 +/- 0.0051 Aphelion: 32.47286844 +/- 0.0134 Period (y) 92.3807 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 5.47858628 +/- 0.0002 Ecliptic Y 7.53506491 +/- 0.0002 Ecliptic Z 3.50254186 +/- 0.0001 Ecliptic XDOT -0.00490982 +/- 0.0000 Ecliptic YDOT 0.00239107 +/- 0.0000 Ecliptic ZDOT -0.00389342 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 9.95288452 +/- 0.0002 Geocenter to KBO 9.11522735 +/- 0.0003 # Hcoef: 12.20
The following table shows the complete astrometric record for 24XA11. 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 (24XA11) followed by the observatory code and reference code for the source of the astrometry.
2023 12 09.286853 02 45 53.424 +39 45 32.51 21.9G 24XA11 V00 C~8SuK 2023 12 09.291750 02 45 53.341 +39 45 31.54 21.9G 24XA11 V00 C~8SuK 2023 12 09.296643 02 45 53.258 +39 45 30.56 22.1G 24XA11 V00 C~8SuK 2023 12 09.301556 02 45 53.154 +39 45 29.23 22.4G 24XA11 V00 C~8SuK 2024 11 30.423936 04 04 09.315 +35 25 01.35 21.6G 24XA11 F51 C~8SuK 2024 11 30.433427 04 04 09.097 +35 24 59.80 21.5G 24XA11 F51 C~8SuK 2024 11 30.442722 04 04 08.863 +35 24 58.37 22.4G 24XA11 F51 C~8SuK 2024 11 30.452026 04 04 08.678 +35 24 56.94 21.7G 24XA11 F51 C~8SuK 2024 12 04.300804 04 02 44.423 +35 14 29.90 21.3G 24XA11 V00 C~8SuK 2024 12 04.306429 04 02 44.300 +35 14 28.97 21.4G 24XA11 V00 C~8SuK 2024 12 04.314930 04 02 44.117 +35 14 27.64 21.2G 24XA11 V00 C~8SuK 2024 12 04.320542 04 02 43.994 +35 14 26.70 21.3G 24XA11 V00 C~8SuK 2024 12 04.428323 04 02 41.580 +35 14 07.90 24XA11 V00 C~8SuK 2024 12 04.433058 04 02 41.520 +35 14 07.00 24XA11 V00 C~8SuK 2024 12 04.442524 04 02 41.320 +35 14 06.00 21.5G 24XA11 V00 C~8SuK 2024 12 05.395517 04 02 20.781 +35 11 26.73 22.2w 24XA11 F52 C~8SuK 2024 12 05.406470 04 02 20.559 +35 11 24.79 21.9w 24XA11 F52 C~8SuK 2024 12 05.417404 04 02 20.316 +35 11 22.86 21.9w 24XA11 F52 C~8SuK 2024 12 05.527048 04 02 17.913 +35 11 04.26 21.5G 24XA11 F52 C~8SuK 2024 12 05.527855 04 02 17.885 +35 11 04.09 21.5G 24XA11 F52 C~8SuK 2024 12 06.396504 04 01 59.298 +35 08 36.83 21.4G 24XA11 F51 C~8SuK 2024 12 06.397322 04 01 59.302 +35 08 36.91 21.8G 24XA11 F51 C~8SuK 2024 12 07.150480 04 01 43.290 +35 06 27.80 24XA11 691 C~8SuK 2024 12 07.168440 04 01 42.900 +35 06 24.60 22.3R 24XA11 691 C~8SuK 2024 12 07.186410 04 01 42.510 +35 06 21.40 22.1R 24XA11 691 C~8SuK 2024 12 08.310790 04 01 18.670 +35 03 07.20 21.4R 24XA11 291 C~8SuK 2024 12 08.324170 04 01 18.390 +35 03 04.80 21.5R 24XA11 291 C~8SuK 2024 12 08.336080 04 01 18.130 +35 03 02.90 21.8R 24XA11 291 C~8SuK 2025 01 05.231583 03 53 21.504 +33 35 24.01 21.6w 24XA11 F51 C~8Ztm 2025 01 05.256462 03 53 21.189 +33 35 19.25 21.3w 24XA11 F51 C~8Ztm 2025 01 05.268935 03 53 21.050 +33 35 16.58 21.3w 24XA11 F51 C~8Ztm
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 0.15 0.00 -0.02
2 0.0000 -1.22 0.11 -0.61 0.04
3 0.0000 -2.44 0.06 -1.23 0.09
4 0.0000 -4.01 -0.32 -2.10 -0.11
5 0.9778 52284.98 0.08 -28178.41 0.05
6 0.9778 52281.97 0.03 -28179.65 0.02
7 0.9778 52278.75 -0.28 -28180.73 0.11
8 0.9779 52276.18 0.06 -28181.90 0.13
9 0.9884 51106.37 -0.08 -28685.19 0.06
10 0.9884 51104.66 -0.06 -28685.93 0.07
11 0.9884 51102.12 0.02 -28686.99 0.15
12 0.9885 51100.41 0.04 -28687.74 0.15
13 0.9888 51066.77 -0.54 -28702.95 -0.43
14 0.9888 51065.88 0.02 -28703.78 -0.61
15 0.9888 51063.16 0.19 -28704.46 0.01
16 0.9914 50776.93 -0.10 -28832.94 0.17
17 0.9914 50773.81 0.15 -28834.55 0.04
18 0.9915 50770.42 0.11 -28836.12 -0.04
19 0.9918 50736.93 0.19 -28851.09 0.04
20 0.9918 50736.54 0.05 -28851.22 0.02
21 0.9941 50477.03 -0.18 -28970.41 -0.05
22 0.9941 50477.09 0.13 -28970.34 0.14
23 0.9962 50253.17 0.05 -29075.14 0.22
24 0.9963 50247.71 0.01 -29077.75 0.07
25 0.9963 50242.24 -0.02 -29080.36 -0.08
26 0.9994 49908.45 0.01 -29238.06 -0.12
27 0.9994 49904.51 0.10 -29240.03 -0.19
28 0.9995 49900.90 0.07 -29241.52 0.01
29 1.0758 42988.66 0.00 -33723.35 0.06
30 1.0759 42983.86 -0.11 -33727.58 0.14
31 1.0759 42981.66 0.05 -33730.04 -0.16
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.
24XA11 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 20.253 20.276 20.229 ecceobj 0.585 0.585 0.586 incobj 37.233 37.233 37.233 qmin 7.812 8.418 7.576 qmax 75.194 37.331 32.076 amean 29.611 22.008 17.275 amin 19.539 20.276 14.560 amax 41.629 23.009 20.229 emean 0.712 0.608 0.522 emin 0.566 0.585 0.430 emax 0.809 0.622 0.605 imean 36.529 38.518 39.690 imin 34.053 38.201 37.434 imax 39.454 38.984 42.446 excite_mean 0.929 0.871 0.826 fracstop 0.051 0.003 0.023 cjmean 2.151 2.436 2.749 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 184.2 193.7 191.0 kozaiamp 15.2 4.4 36.9