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: 23UP43 # Created Sun Dec 22 02:11:25 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 33 observations of 33 # Arc: 9.16y # First observation: 2015/09/05 # Last observation: 2024/11/01 # Chi-squared of fit: 21.81 DOF: 60 RMS: 0.14 # Min/Max residuals: -0.47 0.43 # Exact a, adot, b, bdot, g, gdot: 2.337714E-05 9.470909E-02 6.537334E-06 2.389921E-02 6.255888E-02 -3.972226E-02 # Covariance matrix: 7.2224E-13 -1.7227E-13 9.9751E-14 -3.4145E-14 -6.0513E-15 -3.0602E-14 -1.7227E-13 5.1965E-14 -3.5525E-14 1.2117E-14 1.0480E-14 1.0606E-14 9.9751E-14 -3.5525E-14 3.7932E-13 -5.3971E-14 -6.6364E-15 -8.2739E-15 -3.4145E-14 1.2117E-14 -5.3971E-14 9.2437E-15 2.0807E-15 2.8309E-15 -6.0513E-15 1.0480E-14 -6.6364E-15 2.0807E-15 3.7001E-14 7.4882E-16 -3.0602E-14 1.0606E-14 -8.2739E-15 2.8309E-15 7.4882E-16 2.5296E-15 # lat0 lon0 xBary yBary zBary JD0 -11.843484 -3.760682 0.244666 -0.201292 -0.960699 2457270.738224 # Heliocentric elements and errors Epoch: 2457270.5000 = 2015/09/05 Mean Anomaly: 321.47264 +/- 0.124 Argument of Peri: 47.06587 +/- 0.000 Long of Asc Node: 32.47241 +/- 0.000 Inclination: 18.12393 +/- 0.000 Eccentricity: 0.43611217 +/- 0.0000 Semi-Major Axis: 21.63208676 +/- 0.0000 Time of Perihelion: 2461203.3986 +/- 12.7 Perihelion: 12.19807049 +/- 0.0010 Aphelion: 31.06610302 +/- 0.0010 Period (y) 100.6134 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 16.57083969 +/- 0.0000 Ecliptic Y -1.33488577 +/- 0.0000 Ecliptic Z -3.28063942 +/- 0.0000 Ecliptic XDOT -0.00121357 +/- 0.0000 Ecliptic YDOT 0.00422706 +/- 0.0000 Ecliptic ZDOT 0.00138051 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 16.94528803 +/- 0.0000 Geocenter to KBO 15.98513723 +/- 0.0000 # Hcoef: 11.51
The following table shows the complete astrometric record for 23UP43. 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 (23UP43) followed by the observatory code and reference code for the source of the astrometry.
2015 09 05.237435 00 05 20.18 -12 20 50.4 23UP43 W84 C~8SnB 2017 10 17.240678 00 35 44.707 -05 21 39.46 23.2r 23UP43 W84 C~8SnB 2018 10 10.270606 00 58 17.846 -00 53 23.14 23.0r 23UP43 W84 C~8SnB 2018 10 10.271988 00 58 17.832 -00 53 23.17 22.5i 23UP43 W84 C~8SnB 2018 10 10.273367 00 58 17.810 -00 53 23.14 23.2g 23UP43 W84 C~8SnB 2019 11 28.21663 01 12 30.18 +03 26 11.0 23.5g 23UP43 T09 C~8SnB 2019 11 28.30796 01 12 29.50 +03 26 10.5 23.6g 23UP43 T09 C~8SnB 2019 11 28.38831 01 12 28.87 +03 26 10.2 24.0g 23UP43 T09 C~8SnB 2019 11 28.44158 01 12 28.44 +03 26 10.0 23.9g 23UP43 T09 C~8SnB 2022 08 23.524525 02 52 12.26 +19 50 36.4 23UP43 T14 C~8SnB 2022 08 23.527832 02 52 12.27 +19 50 36.5 23UP43 T14 C~8SnB 2022 08 23.531123 02 52 12.27 +19 50 36.5 23UP43 T14 C~8SnB 2022 08 23.534414 02 52 12.27 +19 50 36.8 23UP43 T14 C~8SnB 2023 01 19.208571 02 30 04.71 +19 22 29.9 23UP43 T14 C~8SnB 2023 10 19.405754 03 21 29.189 +25 30 24.84 22.2G 23UP43 V00 C~7XUo 2023 10 19.412530 03 21 29.117 +25 30 24.88 22.0G 23UP43 V00 C~7XUo 2023 10 19.419182 03 21 29.020 +25 30 24.91 21.9G 23UP43 V00 C~7XUo 2023 10 19.425784 03 21 28.940 +25 30 24.80 22.6G 23UP43 V00 C~7XUo 2023 11 11.326009 03 15 53.867 +25 25 45.01 22.1G 23UP43 V00 C~7XUo 2023 11 11.332132 03 15 53.759 +25 25 44.72 21.8G 23UP43 V00 C~7XUo 2023 11 11.338242 03 15 53.680 +25 25 44.47 21.8G 23UP43 V00 C~7XUo 2023 11 11.344351 03 15 53.572 +25 25 44.58 20.9G 23UP43 V00 C~7XUo 2023 11 11.44265 03 15 52.01 +25 25 41.6 22.5R 23UP43 291 C~7XUp 2023 11 11.45132 03 15 51.90 +25 25 41.4 22.8R 23UP43 291 C~7XUp 2023 11 11.45998 03 15 51.74 +25 25 41.4 22.8R 23UP43 291 C~7XUp 2023 11 21.21081 03 13 19.89 +25 21 09.5 22.5G 23UP43 291 C~7XUp 2023 11 21.23707 03 13 19.49 +25 21 08.5 22.7G 23UP43 291 C~7XUp 2023 11 23.40056 03 12 46.21 +25 19 59.8 22.2R 23UP43 291 C~7XUp 2023 11 23.41334 03 12 46.01 +25 19 59.3 22.0R 23UP43 291 C~7XUp 2023 11 23.42620 03 12 45.82 +25 19 58.8 22.4R 23UP43 291 C~7XUp 2024 11 01.401090 03 59 43.422 +30 39 40.12 22.2G 23UP43 G37 C~8SnB 2024 11 01.447640 03 59 42.732 +30 39 40.47 23UP43 G37 C~8SnB 2024 11 01.495580 03 59 42.016 +30 39 41.01 23UP43 G37 C~8SnC
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 -0.05
2 2.1164 0.00 0.03 0.00 -0.08
3 3.0966 0.00 0.06 0.00 -0.09
4 3.0966 0.00 0.10 0.00 -0.05
5 3.0966 0.00 0.02 0.00 0.05
6 4.2299 0.00 -0.13 0.00 -0.12
7 4.2302 0.00 0.17 0.00 -0.05
8 4.2304 0.00 -0.07 0.00 0.15
9 4.2305 0.00 -0.47 0.00 0.28
10 6.9659 0.00 -0.08 0.00 0.15
11 6.9659 0.00 0.06 0.00 0.09
12 6.9659 0.00 0.05 0.00 -0.06
13 6.9659 0.00 0.04 0.00 0.08
14 7.3730 0.00 -0.09 0.00 -0.02
15 8.1209 0.00 -0.30 0.00 -0.02
16 8.1209 0.00 -0.02 0.00 0.02
17 8.1210 0.00 -0.14 0.00 0.05
18 8.1210 0.00 -0.02 0.00 -0.06
19 8.1837 0.00 0.14 0.00 0.21
20 8.1837 0.00 -0.02 0.00 0.07
21 8.1837 0.00 0.26 0.00 -0.03
22 8.1837 0.00 0.09 0.00 0.23
23 8.1840 0.00 0.02 0.00 -0.30
24 8.1840 0.00 0.43 0.00 -0.28
25 8.1840 0.00 0.08 0.00 -0.06
26 8.2107 0.00 -0.15 0.00 -0.04
27 8.2108 0.00 0.04 0.00 -0.23
28 8.2167 0.00 -0.08 0.00 0.07
29 8.2168 0.00 -0.11 0.00 -0.00
30 8.2168 0.00 0.02 0.00 -0.07
31 9.1586 0.00 -0.14 0.00 0.13
32 9.1587 0.00 -0.05 0.00 -0.03
33 9.1588 0.00 -0.07 0.00 0.02
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.
23UP43 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 21.724 21.724 21.724 ecceobj 0.437 0.437 0.437 incobj 18.105 18.105 18.105 qmin 12.048 11.960 11.965 qmax 31.911 32.939 31.765 amean 21.746 22.067 21.711 amin 21.493 21.492 21.422 amax 22.172 22.658 21.983 emean 0.437 0.442 0.438 emin 0.429 0.421 0.426 emax 0.444 0.458 0.447 imean 17.409 17.530 17.211 imin 17.141 16.977 16.869 imax 17.758 19.195 17.758 excite_mean 0.530 0.535 0.528 fracstop 0.003 0.010 0.003 cjmean 2.838 2.825 2.840 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 72.9 107.1 76.0 kozaiamp 26.4 58.5 29.5