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: 612795 # Created Sun Apr 28 01:09:18 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 23 observations of 23 # Arc: 13.25y # First observation: 2004/08/14 # Last observation: 2017/11/15 # Chi-squared of fit: 26.55 DOF: 40 RMS: 0.19 # Min/Max residuals: -0.72 0.31 # Exact a, adot, b, bdot, g, gdot: 1.409660E-05 2.407653E-02 -1.219787E-07 -4.358501E-04 2.434480E-02 1.491599E-04 # 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 -0.514619 -17.293088 0.361913 -0.008430 -0.950376 2453231.798423 # Heliocentric elements and errors Epoch: 2453232.5000 = 2004/08/15 Mean Anomaly: 356.47698 +/- 0.000 Argument of Peri: 209.56486 +/- 0.000 Long of Asc Node: 136.44553 +/- 0.000 Inclination: 1.15699 +/- 0.000 Eccentricity: 0.03607160 +/- 0.0000 Semi-Major Axis: 43.59342944 +/- 0.0000 Time of Perihelion: 2454261.3276 +/- 0.0 Perihelion: 42.02094475 +/- 0.0000 Aphelion: 45.16591414 +/- 0.0000 Period (y) 287.8325 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.01408063 +/- 0.0000 Ecliptic Y -12.83612733 +/- 0.0000 Ecliptic Z -0.36895701 +/- 0.0000 Ecliptic XDOT 0.00081855 +/- 0.0000 Ecliptic YDOT 0.00257343 +/- 0.0000 Ecliptic ZDOT -0.00004906 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.02414861 +/- 0.0000 Geocenter to KBO 41.07655967 +/- 0.0000 # Hcoef: 6.86
The following table shows the complete astrometric record for 612795. 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 (612795) followed by the observatory code and reference code for the source of the astrometry.
2004 08 14.29768 22 57 01.64 -07 15 58.2 21.5R 612795 807 Cl2777 2004 08 14.40415 22 57 01.18 -07 16 00.9 612795 807 Cl2777 2004 08 15.34845 22 56 57.26 -07 16 25.7 612795 807 Cl2777 2004 09 13.23951 22 54 50.32 -07 29 36.7 22.6R 612795 304 Cl4404 2004 09 13.28756 22 54 50.10 -07 29 38.0 612795 304 Cl4404 2006 10 19.17414 23 02 50.72 -06 43 15.5 22.3R 612795 695 Ct0488 2006 10 19.26624 23 02 50.42 -06 43 17.0 612795 695 Ct0488 2006 10 20.16577 23 02 47.58 -06 43 34.6 612795 695 Ct0488 2014 08 18.28289 23 48 04.500 -02 06 22.68 22.7z 612795 W84 C~52FZ 2016 08 15.25732 23 58 21.295 -01 02 15.93 22.3z 612795 W84 C~52FZ 2016 10 06.05316 23 54 46.241 -01 25 57.03 22.9z 612795 W84 C~52FZ 2016 10 07.05381 23 54 41.984 -01 26 24.24 22.3i 612795 W84 C~52FZ 2016 10 07.08247 23 54 41.868 -01 26 25.22 24.1g 612795 W84 C~52FZ 2016 10 09.14158 23 54 33.197 -01 27 21.24 23.3r 612795 W84 C~52FZ 2017 07 30.48504 00 04 09.17 -00 25 34.4 23.6r 612795 T09 C~7dBy 2017 07 30.52658 00 04 09.09 -00 25 35.2 23.3r 612795 T09 C~7dBy 2017 07 30.59058 00 04 08.92 -00 25 36.4 23.3r 612795 T09 C~7dBy 2017 08 18.30775 00 03 15.210 -00 31 46.33 22.6i 612795 W84 C~52FZ 2017 08 18.30913 00 03 15.202 -00 31 46.27 23.8g 612795 W84 C~52FZ 2017 09 18.22502 00 01 10.366 -00 45 37.66 24.0g 612795 W84 C~52FZ 2017 10 17.18644 23 59 05.787 -00 59 07.15 23.5r 612795 W84 C~52FZ 2017 11 10.04642 23 57 45.423 -01 07 35.98 23.5r 612795 W84 C~52FZ 2017 11 15.03651 23 57 33.099 -01 08 51.77 22.8i 612795 W84 C~52FZ
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 0.31 0.00 0.09
2 0.0003 0.00 0.08 0.00 0.14
3 0.0029 0.00 -0.26 0.00 -0.08
4 0.0820 0.00 0.08 0.00 0.11
5 0.0821 0.00 0.02 0.00 0.12
6 2.1790 0.00 0.26 0.00 -0.12
7 2.1792 0.00 0.19 0.00 0.14
8 2.1817 0.00 -0.72 0.00 -0.45
9 10.0095 0.00 0.08 0.00 0.07
10 12.0026 0.00 0.14 0.00 0.12
11 12.1444 0.00 0.08 0.00 -0.19
12 12.1472 0.00 0.02 0.00 0.10
13 12.1473 0.00 0.13 0.00 -0.10
14 12.1529 0.00 0.14 0.00 -0.15
15 12.9588 0.00 -0.18 0.00 0.28
16 12.9589 0.00 0.07 0.00 0.14
17 12.9590 0.00 -0.25 0.00 -0.04
18 13.0103 0.00 -0.06 0.00 -0.10
19 13.0103 0.00 -0.11 0.00 -0.01
20 13.0949 0.00 -0.13 0.00 0.22
21 13.1742 0.00 0.02 0.00 0.00
22 13.2396 0.00 0.15 0.00 -0.19
23 13.2532 0.00 0.09 0.00 -0.03
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.
612795 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.034 44.034 44.034 ecceobj 0.046 0.046 0.046 incobj 1.154 1.154 1.154 qmin 41.144 41.145 41.144 qmax 46.745 46.744 46.745 amean 43.851 43.851 43.851 amin 43.510 43.507 43.514 amax 44.198 44.198 44.198 emean 0.042 0.042 0.042 emin 0.026 0.026 0.026 emax 0.058 0.058 0.058 imean 1.485 1.485 1.485 imin 0.774 0.774 0.774 imax 2.106 2.105 2.106 excite_mean 0.050 0.050 0.050 fracstop 1.000 1.000 1.000 cjmean 3.097 3.097 3.097 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 186.3 186.4 186.3 kozaiamp 180.0 180.0 180.0