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: 16CP433 # Created Wed May 21 01:10:47 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 27 observations of 27 # Arc: 6.94y # First observation: 2016/01/15 # Last observation: 2022/12/23 # Chi-squared of fit: 21.00 DOF: 48 RMS: 0.16 # Min/Max residuals: -0.35 0.40 # Exact a, adot, b, bdot, g, gdot: 2.237947E-05 6.518720E-02 -8.480880E-06 -2.312188E-02 4.899196E-02 -2.268264E-02 # Covariance matrix: 1.5431E-13 -2.0290E-13 -2.4576E-14 6.0020E-14 1.1832E-13 -2.9104E-13 -2.0290E-13 4.6624E-13 5.7365E-14 -1.4790E-13 -1.7560E-13 7.1036E-13 -2.4576E-14 5.7365E-14 7.4289E-14 -3.1457E-14 -2.5816E-14 8.9000E-14 6.0020E-14 -1.4790E-13 -3.1457E-14 5.8799E-14 4.8042E-14 -2.3151E-13 1.1832E-13 -1.7560E-13 -2.5816E-14 4.8042E-14 3.1768E-13 -2.4610E-13 -2.9104E-13 7.1036E-13 8.9000E-14 -2.3151E-13 -2.4610E-13 1.1102E-12 # lat0 lon0 xBary yBary zBary JD0 -12.431172 139.904971 0.426485 -0.190583 -0.865477 2457402.899639 # Heliocentric elements and errors Epoch: 2457402.5000 = 2016/01/15 Mean Anomaly: 319.43274 +/- 0.005 Argument of Peri: 292.62283 +/- 0.007 Long of Asc Node: 288.80459 +/- 0.000 Inclination: 22.91817 +/- 0.000 Eccentricity: 0.37962032 +/- 0.0000 Semi-Major Axis: 26.40834013 +/- 0.0018 Time of Perihelion: 2462988.2723 +/- 4.6 Perihelion: 16.38319754 +/- 0.0012 Aphelion: 36.43348272 +/- 0.0026 Period (y) 135.7125 +/- 0.01 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -15.65553469 +/- 0.0002 Ecliptic Y 13.73312128 +/- 0.0002 Ecliptic Z -4.39411928 +/- 0.0000 Ecliptic XDOT -0.00118722 +/- 0.0000 Ecliptic YDOT -0.00377008 +/- 0.0000 Ecliptic ZDOT -0.00098895 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 21.28401808 +/- 0.0002 Geocenter to KBO 20.41168693 +/- 0.0002 # Hcoef: 11.98
The following table shows the complete astrometric record for 16CP433. 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 (16CP433) followed by the observatory code and reference code for the source of the astrometry.
2016 01 15.39885 09 13 41.87 +03 01 11.4 25.1z 16CP433 T09 C~8r7V 2016 01 15.40229 09 13 41.84 +03 01 10.8 24.9z 16CP433 T09 C~8r7V 2016 01 15.41379 09 13 41.77 +03 01 11.5 24.7z 16CP433 T09 C~8r7V 2016 01 15.44365 09 13 41.50 +03 01 11.7 24.3z 16CP433 T09 C~8r7V 2016 01 15.45754 09 13 41.40 +03 01 11.4 24.4z 16CP433 T09 C~8r7V 2016 02 06.51074 09 10 23.67 +03 08 12.2 25.2i 16CP433 T09 C~8ne4 2016 02 06.52424 09 10 23.55 +03 08 12.7 25.0i 16CP433 T09 C~8ne4 2016 02 08.45714 09 10 05.71 +03 09 07.6 25.4r 16CP433 T09 C~8ne4 2016 02 08.48123 09 10 05.48 +03 09 08.4 26.0r 16CP433 T09 C~8ne4 2016 02 08.53022 09 10 05.01 +03 09 09.8 25.0r 16CP433 T09 C~8ne4 2016 03 07.33641 09 06 06.77 +03 25 39.9 25.8g 16CP433 T09 C~8ne4 2016 03 07.36199 09 06 06.57 +03 25 41.0 25.6g 16CP433 T09 C~8ne4 2016 03 07.38615 09 06 06.40 +03 25 42.0 25.1g 16CP433 T09 C~8ne4 2016 03 07.39349 09 06 06.35 +03 25 42.0 25.5g 16CP433 T09 C~8ne4 2016 03 07.41935 09 06 06.14 +03 25 43.1 25.5g 16CP433 T09 C~8ne4 2016 11 28.52476 09 30 34.03 +00 50 39.6 25.5r 16CP433 T09 C~8r7V 2016 11 28.56332 09 30 33.99 +00 50 38.1 25.8r 16CP433 T09 C~8r7V 2016 11 28.58230 09 30 33.97 +00 50 36.6 25.1r 16CP433 T09 C~8r7V 2016 11 28.63097 09 30 33.90 +00 50 34.6 25.6r 16CP433 T09 C~8r7V 2016 11 29.506897 09 30 32.90 +00 49 52.2 16CP433 T09 C~8r7V 2016 11 29.63007 09 30 32.70 +00 49 46.7 25.4z 16CP433 T09 C~8r7V 2016 11 29.64415 09 30 32.68 +00 49 45.8 25.7z 16CP433 T09 C~8r7V 2017 02 01.495147 09 23 59.94 +00 37 49.7 16CP433 T09 C~8r7V 2017 02 01.503426 09 23 59.87 +00 37 49.8 16CP433 T09 C~8r7V 2017 02 01.544598 09 23 59.48 +00 37 50.9 16CP433 T09 C~8r7V 2022 12 23.618595 11 01 18.51 -16 01 49.2 16CP433 T14 C~8r7V 2022 12 23.621887 11 01 18.50 -16 01 49.4 16CP433 T14 C~8r7V
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 -0.20 0.00 0.28
2 0.0000 0.00 -0.21 0.00 -0.35
3 0.0000 0.00 0.21 0.00 0.25
4 0.0001 0.00 -0.01 0.00 0.17
5 0.0002 0.00 0.27 0.00 -0.26
6 0.0605 0.00 0.03 0.00 -0.11
7 0.0606 0.00 0.14 0.00 0.02
8 0.0659 0.00 0.08 0.00 -0.13
9 0.0659 0.00 0.02 0.00 -0.03
10 0.0661 0.00 -0.14 0.00 -0.06
11 0.1422 0.00 -0.15 0.00 0.00
12 0.1423 0.00 -0.22 0.00 0.09
13 0.1423 0.00 -0.00 0.00 0.14
14 0.1424 0.00 0.08 0.00 -0.15
15 0.1424 0.00 -0.11 0.00 -0.07
16 0.8710 0.00 -0.06 0.00 0.03
17 0.8711 0.00 0.04 0.00 0.40
18 0.8711 0.00 0.09 0.00 -0.17
19 0.8713 0.00 -0.04 0.00 0.19
20 0.8737 0.00 0.16 0.00 -0.12
21 0.8740 0.00 -0.21 0.00 0.23
22 0.8740 0.00 -0.21 0.00 -0.00
23 1.0489 0.00 0.03 0.00 -0.06
24 1.0489 0.00 0.15 0.00 -0.15
25 1.0490 0.00 0.12 0.00 -0.03
26 6.9383 0.00 0.05 0.00 -0.05
27 6.9383 0.00 -0.05 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.
16CP433 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 26.267 26.267 26.268 ecceobj 0.374 0.374 0.374 incobj 22.917 22.917 22.917 qmin 16.199 16.201 16.171 qmax 37.034 37.381 36.089 amean 26.332 26.479 25.978 amin 25.883 25.879 25.694 amax 26.821 27.080 26.268 emean 0.375 0.372 0.369 emin 0.365 0.364 0.358 emax 0.383 0.382 0.375 imean 24.506 24.509 24.704 imin 24.403 24.325 24.481 imax 24.643 24.767 25.001 excite_mean 0.559 0.557 0.557 fracstop 0.002 0.003 0.003 cjmean 2.721 2.721 2.728 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 298.1 299.2 298.6 kozaiamp 5.7 7.4 5.6