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: 23XQ45 # Created Wed May 21 01:11:40 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 80 observations of 80 # Arc: 6.32y # First observation: 2019/01/09 # Last observation: 2025/05/04 # Chi-squared of fit: 66.46 DOF: 154 RMS: 0.16 # Min/Max residuals: -0.68 0.77 # Exact a, adot, b, bdot, g, gdot: 3.425601E-05 2.021860E-01 5.609022E-06 3.546248E-02 9.339774E-02 -5.642973E-02 # Covariance matrix: 3.6686E-13 -5.8925E-11 1.6935E-14 -9.4413E-12 -2.2368E-12 -2.0289E-11 -5.8925E-11 1.1518E-07 -9.5347E-12 1.8294E-08 1.2960E-08 3.8539E-08 1.6935E-14 -9.5347E-12 3.2667E-13 -2.9354E-12 1.5868E-12 -3.7641E-12 -9.4413E-12 1.8294E-08 -2.9354E-12 3.5278E-09 2.0175E-09 6.1640E-09 -2.2368E-12 1.2960E-08 1.5868E-12 2.0175E-09 2.4068E-09 4.1624E-09 -2.0289E-11 3.8539E-08 -3.7641E-12 6.1640E-09 4.1624E-09 1.3004E-08 # lat0 lon0 xBary yBary zBary JD0 30.685701 128.413560 0.336580 0.475612 -0.801292 2458492.979082 # Heliocentric elements and errors Epoch: 2458492.5000 = 2019/01/09 Mean Anomaly: 348.16726 +/- 0.000 Argument of Peri: 120.52581 +/- 0.000 Long of Asc Node: 57.51189 +/- 0.000 Inclination: 29.99292 +/- 0.000 Eccentricity: 0.57516949 +/- 0.0000 Semi-Major Axis: 23.71921721 +/- 0.0000 Time of Perihelion: 2459879.3569 +/- 0.0 Perihelion: 10.07664725 +/- 0.0000 Aphelion: 37.36178717 +/- 0.0000 Period (y) 115.5204 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -6.03574410 +/- 0.0000 Ecliptic Y 8.14622117 +/- 0.0000 Ecliptic Z 5.46404507 +/- 0.0000 Ecliptic XDOT -0.00342256 +/- 0.0000 Ecliptic YDOT -0.00521478 +/- 0.0000 Ecliptic ZDOT 0.00004961 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 11.51735846 +/- 0.0000 Geocenter to KBO 10.70703082 +/- 0.0000 # Hcoef: 11.79
The following table shows the complete astrometric record for 23XQ45. 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 (23XQ45) followed by the observatory code and reference code for the source of the astrometry.
2019 01 09.478281 09 28 35.769 +47 24 47.47 22.9G 23XQ45 F51 C~8rAn 2019 01 09.491915 09 28 35.539 +47 24 49.40 22.3G 23XQ45 F51 C~8rAn 2019 01 09.505585 09 28 35.342 +47 24 51.33 22.7G 23XQ45 F51 C~8rAn 2019 01 09.519267 09 28 35.102 +47 24 53.31 22.6G 23XQ45 F51 C~8rAn 2019 01 14.468565 09 27 13.066 +47 36 37.08 21.9G 23XQ45 F51 C~8rAn 2021 02 13.544003 11 33 54.377 +38 45 05.07 22.5G 23XQ45 F51 C~8rAn 2021 02 13.556184 11 33 54.232 +38 45 07.02 22.3G 23XQ45 F51 C~8rAn 2021 02 13.568353 11 33 54.062 +38 45 09.53 22.7G 23XQ45 F51 C~8rAn 2021 02 13.580532 11 33 53.849 +38 45 10.50 22.5G 23XQ45 F51 C~8rAn 2022 02 06.505526 12 33 03.235 +29 38 12.05 21.8G 23XQ45 F52 C~8rAn 2022 02 06.516286 12 33 03.157 +29 38 13.74 21.8G 23XQ45 F52 C~8rAn 2022 02 06.527126 12 33 03.052 +29 38 15.00 22.1G 23XQ45 F52 C~8rAn 2023 03 25.526563 13 13 03.501 +20 47 39.83 21.5G 23XQ45 F52 C~8rAn 2023 03 30.521455 13 11 38.624 +20 52 54.48 21.8G 23XQ45 F52 C~8rAn 2023 03 30.534310 13 11 38.401 +20 52 55.63 22.0G 23XQ45 F52 C~8rAn 2023 03 30.547135 13 11 38.158 +20 52 56.22 22.0G 23XQ45 F52 C~8rAn 2023 03 30.560084 13 11 37.949 +20 52 56.81 21.7G 23XQ45 F52 C~8rAn 2023 04 24.297536 13 04 30.851 +20 59 49.48 21.6w 23XQ45 F52 C~8rAn 2023 04 24.309613 13 04 30.640 +20 59 48.83 21.7w 23XQ45 F52 C~8rAn 2023 04 24.321745 13 04 30.450 +20 59 48.51 21.8w 23XQ45 F52 C~8rAn 2023 04 24.333848 13 04 30.231 +20 59 48.54 21.8w 23XQ45 F52 C~8rAn 2023 12 11.526310 13 52 25.352 +09 05 12.62 22.8G 23XQ45 V00 C~8rAn 2023 12 11.531198 13 52 25.468 +09 05 12.19 22.8G 23XQ45 V00 C~8rAn 2023 12 11.536085 13 52 25.547 +09 05 11.44 23.2G 23XQ45 V00 C~8rAn 2023 12 11.540969 13 52 25.651 +09 05 11.29 22.3G 23XQ45 V00 C~8rAn 2024 01 22.610954 14 02 06.938 +08 49 55.14 22.0G 23XQ45 F51 C~8rAn 2024 01 22.624196 14 02 07.025 +08 49 55.39 22.2G 23XQ45 F51 C~8rAn 2024 01 22.637427 14 02 07.111 +08 49 55.88 21.9G 23XQ45 F51 C~8rAn 2024 01 22.650742 14 02 07.190 +08 49 56.13 22.1G 23XQ45 F51 C~8rAn 2024 03 17.589359 13 58 51.444 +09 49 30.93 21.8G 23XQ45 F52 C~8rAn 2024 03 17.599744 13 58 51.294 +09 49 31.43 21.3G 23XQ45 F52 C~8rAn 2024 03 17.610129 13 58 51.189 +09 49 32.33 21.2G 23XQ45 F52 C~8rAn 2024 03 17.620550 13 58 51.024 +09 49 33.11 21.4G 23XQ45 F52 C~8rAn 2024 03 19.543770 13 58 26.020 +09 51 55.91 21.8G 23XQ45 F51 C~8rAn 2024 03 19.544591 13 58 26.009 +09 51 55.87 21.6G 23XQ45 F51 C~8rAn 2024 04 01.371680 13 55 18.802 +10 06 05.87 21.8G 23XQ45 F52 C~8rAn 2024 04 01.384035 13 55 18.608 +10 06 06.65 21.6G 23XQ45 F52 C~8rAn 2024 04 01.396413 13 55 18.408 +10 06 07.35 21.6G 23XQ45 F52 C~8rAn 2024 04 01.408778 13 55 18.219 +10 06 08.13 21.8G 23XQ45 F52 C~8rAn 2024 04 10.377705 13 52 51.984 +10 13 32.49 22.0G 23XQ45 F51 C~8rAn 2024 04 10.388224 13 52 51.794 +10 13 32.85 21.8G 23XQ45 F51 C~8rAn 2024 04 10.398735 13 52 51.607 +10 13 33.19 21.3G 23XQ45 F51 C~8rAn 2024 04 10.409331 13 52 51.441 +10 13 33.67 21.7G 23XQ45 F51 C~8rAn 2024 04 28.312001 13 47 49.007 +10 19 31.46 22.0G 23XQ45 F51 C~8rAn 2024 04 28.324968 13 47 48.788 +10 19 31.18 21.9G 23XQ45 F51 C~8rAn 2024 04 28.337978 13 47 48.561 +10 19 31.39 21.7G 23XQ45 F51 C~8rAn 2024 04 28.350951 13 47 48.350 +10 19 31.02 22.0G 23XQ45 F51 C~8rAn 2024 04 28.399076 13 47 47.520 +10 19 30.78 21.3G 23XQ45 F51 C~8rAn 2024 05 03.359439 13 46 26.368 +10 18 43.56 21.7G 23XQ45 V00 C~8rAn 2024 05 03.365072 13 46 26.260 +10 18 43.70 21.8G 23XQ45 V00 C~8rAn 2024 05 03.370679 13 46 26.173 +10 18 43.52 21.5G 23XQ45 V00 C~8rAn 2024 05 03.376294 13 46 26.080 +10 18 43.42 21.7G 23XQ45 V00 C~8rAn 2024 05 28.398653 13 40 40.516 +09 57 00.88 21.7G 23XQ45 F51 C~8rAn 2024 05 28.409364 13 40 40.390 +09 56 59.73 21.9G 23XQ45 F51 C~8rAn 2024 06 01.358495 13 39 59.604 +09 50 53.00 21.9G 23XQ45 F51 C~8rAn 2024 06 01.370083 13 39 59.490 +09 50 51.98 22.0G 23XQ45 F51 C~8rAn 2024 06 01.381612 13 39 59.376 +09 50 50.61 22.3G 23XQ45 F51 C~8rAn 2025 02 25.563267 14 39 37.420 -00 41 42.66 22.2G 23XQ45 F52 C~8rAn 2025 02 25.575494 14 39 37.357 -00 41 42.32 22.3G 23XQ45 F52 C~8rAn 2025 02 25.587675 14 39 37.327 -00 41 41.95 22.6G 23XQ45 F52 C~8rAn 2025 03 03.629454 14 39 11.363 -00 38 20.04 21.8G 23XQ45 F51 C~8rAn 2025 03 03.637636 14 39 11.311 -00 38 19.83 22.3G 23XQ45 F51 C~8rAn 2025 03 03.645772 14 39 11.264 -00 38 19.49 22.0G 23XQ45 F51 C~8rAn 2025 03 08.536917 14 38 40.892 -00 35 13.07 22.1G 23XQ45 F52 C~8rAn 2025 03 08.549100 14 38 40.790 -00 35 12.93 21.7G 23XQ45 F52 C~8rAn 2025 03 08.561331 14 38 40.713 -00 35 12.02 21.8G 23XQ45 F52 C~8rAn 2025 04 07.506305 14 33 00.521 -00 13 45.46 21.3G 23XQ45 F51 C~8rAn 2025 04 07.518110 14 33 00.342 -00 13 44.79 21.7G 23XQ45 F51 C~8rAn 2025 04 24.410856 14 28 32.148 -00 04 52.36 21.5w 23XQ45 F51 C~8rAn 2025 04 24.423381 14 28 31.934 -00 04 52.01 21.9w 23XQ45 F51 C~8rAn 2025 04 24.435954 14 28 31.720 -00 04 51.86 21.8w 23XQ45 F51 C~8rAn 2025 04 24.522050 14 28 30.281 -00 04 49.97 21.8G 23XQ45 F51 C~8rAn 2025 04 24.522690 14 28 30.256 -00 04 49.88 21.7G 23XQ45 F51 C~8rAn 2025 05 02.396757 14 26 19.518 -00 02 44.69 21.6w 23XQ45 F51 C~8sxk 2025 05 02.409757 14 26 19.278 -00 02 44.61 21.7w 23XQ45 F51 C~8sxk 2025 05 02.422759 14 26 19.076 -00 02 44.69 21.7w 23XQ45 F51 C~8sxk 2025 05 02.435757 14 26 18.852 -00 02 44.53 21.8w 23XQ45 F51 C~8sxk 2025 05 04.394140 14 25 46.492 -00 02 28.86 21.8w 23XQ45 F51 C~8sxk 2025 05 04.407435 14 25 46.264 -00 02 28.73 21.7w 23XQ45 F51 C~8sxk 2025 05 04.420854 14 25 46.038 -00 02 28.72 21.6w 23XQ45 F51 C~8sxk
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 0.04 0.00 0.08
2 0.0000 0.00 -0.09 0.00 -0.01
3 0.0001 0.00 0.29 0.00 -0.10
4 0.0001 0.00 0.03 0.00 -0.14
5 0.0137 0.00 -0.15 0.00 0.05
6 2.0974 0.00 -0.68 0.00 -0.41
7 2.0974 0.00 0.07 0.00 -0.10
8 2.0974 0.00 0.45 0.00 0.77
9 2.0975 0.00 0.18 0.00 0.11
10 3.0774 0.00 -0.12 0.00 -0.13
11 3.0774 0.00 0.04 0.00 -0.03
12 3.0775 0.00 -0.20 0.00 -0.37
13 4.2055 0.00 0.06 0.00 -0.17
14 4.2191 0.00 0.04 0.00 -0.17
15 4.2192 0.00 0.08 0.00 0.27
16 4.2192 0.00 -0.18 0.00 0.16
17 4.2193 0.00 0.10 0.00 0.04
18 4.2870 0.00 0.07 0.00 0.13
19 4.2870 0.00 -0.06 0.00 -0.22
20 4.2870 0.00 0.13 0.00 -0.23
21 4.2871 0.00 -0.11 0.00 0.10
22 4.9200 0.00 -0.07 0.00 0.22
23 4.9201 0.00 0.22 0.00 0.15
24 4.9201 0.00 -0.04 0.00 -0.23
25 4.9201 0.00 0.08 0.00 -0.02
26 5.0353 0.00 0.04 0.00 0.08
27 5.0353 0.00 0.07 0.00 -0.05
28 5.0353 0.00 0.10 0.00 0.06
29 5.0354 0.00 0.01 0.00 -0.07
30 5.1858 0.00 0.24 0.00 0.23
31 5.1858 0.00 0.04 0.00 -0.05
32 5.1859 0.00 0.50 0.00 0.08
33 5.1859 0.00 0.07 0.00 0.08
34 5.1911 0.00 0.05 0.00 0.03
35 5.1911 0.00 0.05 0.00 -0.07
36 5.2263 0.00 -0.14 0.00 -0.06
37 5.2263 0.00 -0.08 0.00 0.00
38 5.2263 0.00 -0.10 0.00 -0.02
39 5.2264 0.00 0.05 0.00 0.05
40 5.2509 0.00 0.12 0.00 0.07
41 5.2510 0.00 -0.04 0.00 -0.00
42 5.2510 0.00 -0.15 0.00 -0.10
43 5.2510 0.00 0.08 0.00 -0.05
44 5.3000 0.00 -0.01 0.00 0.20
45 5.3001 0.00 -0.00 0.00 -0.05
46 5.3001 0.00 -0.10 0.00 0.19
47 5.3001 0.00 0.03 0.00 -0.16
48 5.3003 0.00 -0.18 0.00 -0.27
49 5.3138 0.00 0.19 0.00 -0.15
50 5.3139 0.00 -0.04 0.00 0.08
51 5.3139 0.00 0.03 0.00 -0.00
52 5.3139 0.00 0.01 0.00 -0.01
53 5.3824 0.00 0.11 0.00 0.06
54 5.3824 0.00 0.01 0.00 -0.15
55 5.3932 0.00 -0.10 0.00 0.11
56 5.3933 0.00 -0.05 0.00 0.23
57 5.3933 0.00 -0.02 0.00 0.00
58 6.1303 0.00 0.10 0.00 0.23
59 6.1303 0.00 -0.19 0.00 0.20
60 6.1303 0.00 0.00 0.00 0.19
61 6.1469 0.00 0.15 0.00 0.03
62 6.1469 0.00 0.07 0.00 -0.06
63 6.1469 0.00 0.06 0.00 -0.01
64 6.1603 0.00 -0.04 0.00 -0.01
65 6.1604 0.00 -0.22 0.00 -0.35
66 6.1604 0.00 -0.02 0.00 0.07
67 6.2424 0.00 -0.10 0.00 -0.35
68 6.2424 0.00 -0.09 0.00 -0.14
69 6.2887 0.00 0.00 0.00 -0.08
70 6.2887 0.00 -0.03 0.00 -0.00
71 6.2887 0.00 -0.05 0.00 -0.12
72 6.2890 0.00 0.19 0.00 -0.11
73 6.2890 0.00 -0.02 0.00 -0.03
74 6.3105 0.00 0.13 0.00 0.21
75 6.3106 0.00 -0.18 0.00 0.16
76 6.3106 0.00 0.09 0.00 -0.05
77 6.3106 0.00 0.03 0.00 -0.01
78 6.3160 0.00 0.01 0.00 -0.02
79 6.3160 0.00 -0.06 0.00 0.03
80 6.3161 0.00 -0.06 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.
23XQ45 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 23.834 23.833 23.834 ecceobj 0.573 0.573 0.573 incobj 29.887 29.887 29.887 qmin 10.053 10.053 10.053 qmax 39.017 39.011 39.016 amean 24.038 24.119 24.187 amin 23.517 23.715 23.639 amax 24.645 24.627 24.644 emean 0.571 0.570 0.577 emin 0.548 0.558 0.563 emax 0.587 0.587 0.587 imean 29.710 30.186 29.430 imin 28.898 28.898 28.898 imax 30.661 31.266 29.956 excite_mean 0.756 0.760 0.758 fracstop 0.002 0.005 0.001 cjmean 2.520 2.512 2.513 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 130.5 132.6 127.4 kozaiamp 10.4 10.2 7.3