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: 612573 # Created Wed Dec 25 02:07:40 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 32 observations of 33 # Arc: 15.05y # First observation: 2003/08/23 # Last observation: 2018/09/09 # Chi-squared of fit: 81.01 DOF: 58 RMS: 0.28 # Min/Max residuals: -0.52 0.72 # Exact a, adot, b, bdot, g, gdot: 1.297246E-05 2.206153E-02 -1.413430E-06 -7.644191E-04 2.328646E-02 -9.956444E-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 -1.377909 -7.382677 0.396830 -0.022423 -0.934604 2452874.794103 # Heliocentric elements and errors Epoch: 2452874.5000 = 2003/08/23 Mean Anomaly: 269.21131 +/- 0.000 Argument of Peri: 311.19418 +/- 0.000 Long of Asc Node: 138.11697 +/- 0.000 Inclination: 2.41171 +/- 0.000 Eccentricity: 0.05599086 +/- 0.0000 Semi-Major Axis: 43.70633465 +/- 0.0000 Time of Perihelion: 2479490.5893 +/- 0.0 Perihelion: 41.25917940 +/- 0.0000 Aphelion: 46.15348990 +/- 0.0000 Period (y) 288.9514 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 43.44848864 +/- 0.0000 Ecliptic Y -6.02593403 +/- 0.0000 Ecliptic Z -1.03272785 +/- 0.0000 Ecliptic XDOT 0.00020983 +/- 0.0000 Ecliptic YDOT 0.00258193 +/- 0.0000 Ecliptic ZDOT -0.00008686 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.87656225 +/- 0.0000 Geocenter to KBO 42.94347154 +/- 0.0000 # Hcoef: 7.02
The following table shows the complete astrometric record for 612573. 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 (612573) followed by the observatory code and reference code for the source of the astrometry.
2003 08 23.29336 23 35 03.91 -04 11 43.9 22.0R 612573 807 Ci4137 2003 08 24.30508 23 34 59.97 -04 12 10.4 612573 807 Ci4137 2003 08 24.37682 23 34 59.71 -04 12 12.5 612573 807 Ci4137 2003 10 22.15049 23 31 03.22 -04 37 44.3 23.2R 612573 695 Cj4699 2003 10 22.23808 23 31 02.91 -04 37 46.1 612573 695 Cj4699 2003 10 23.19439 23 30 59.81 -04 38 05.3 23.8R 612573 304 Ci9429 2003 10 23.21442 23 30 59.75 -04 38 05.7 612573 304 Ci9429 2004 07 17.37021 23 41 30.92 -03 31 47.8 21.9R 612573 807 Cl8405 2004 07 17.42677 23 41 30.83 -03 31 48.8 612573 807 Cl8405 2004 10 11.21449 23 36 22.07 -04 06 31.2 23.7R 612573 695 Cl8405 2004 10 11.30502 23 36 21.77 -04 06 33.7 612573 695 Cl8405 2004 10 12.18643 23 36 18.42 -04 06 55.2 23.2R 612573 695 Cl8405 2004 10 12.29544 23 36 17.95 -04 06 57.2 612573 695 Cl8405 2007 05 22.12184 23 54 45.32 -02 11 34.6 23.7R 612573 250 S~06Ac 2007 05 22.12878 23 54 45.34 -02 11 34.5 612573 250 S~06Ac 2007 05 22.13573 23 54 45.36 -02 11 34.4 612573 250 S~06Ac 2007 05 22.14267 23 54 45.39 -02 11 34.2 612573 250 S~06Ac 2013 10 05.30395 00 19 43.88 +00 10 49.8 23.2R 612573 695 C~0zdV 2013 10 05.34959 00 19 43.71 +00 10 48.5 612573 695 C~0zdV 2013 10 06.32125 00 19 39.71 +00 10 24.1 612573 695 C~0zdV 2013 10 13.11349 00 19 10.858 +00 07 17.24 23.2i 612573 W84 C~4yD1 2013 11 23.09831 00 16 56.580 -00 06 21.14 23.0i 612573 W84 C~4yD1 2014 10 28.18680 00 23 00.795 +00 29 50.51 23.6r 612573 W84 C~4yD1 2015 10 17.15966 00 28 34.447 +01 03 13.05 23.6r 612573 W84 C~4yD1 2015 11 02.09796 00 27 32.436 +00 56 47.60 23.5r 612573 W84 C~4yD1 2016 09 09.31225 00 36 02.084 +01 49 10.26 23.1r 612573 W84 C~4yD1 2016 09 09.31362 00 36 02.058 +01 49 10.34 22.6i 612573 W84 C~4yD1 2016 10 02.18440 00 34 25.694 +01 38 31.52 23.1i 612573 W84 C~4yD1 2016 11 18.11310 00 31 28.251 +01 20 13.47 23.6r 612573 W84 C~4yD1 2016 11 28.10122 00 31 05.151 +01 18 05.08 23.6r 612573 W84 C~4yD1 2017 08 22.32458 00 41 56.556 +02 25 18.00 23.6i 612573 W84 C~4yD1 2018 09 09.24289 00 45 46.938 +02 46 59.07 22.7z 612573 W84 C~4yD1 2018 10 18.18780 00 43 01.850 +02 29 05.38 22.8z 612573 W84 C~4yD1
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 0.33
2 0.0028 0.00 -0.07 0.00 0.32
3 0.0030 0.00 0.28 0.00 0.10
4 0.1639 0.00 -0.28 0.00 -0.09
5 0.1641 0.00 -0.52 0.00 -0.12
6 0.1667 0.00 -0.20 0.00 -0.34
7 0.1668 0.00 -0.11 0.00 -0.35
8 0.9010 0.00 0.19 0.00 0.50
9 0.9011 0.00 0.37 0.00 0.26
10 1.1360 0.00 -0.05 0.00 0.33
11 1.1362 0.00 0.72 0.00 0.01
12 1.1387 0.00 0.51 0.00 -0.40
13 1.1390 0.00 -0.24 0.00 0.19
14 3.7449 0.00 -0.38 0.00 -0.31
15 3.7449 0.00 -0.41 0.00 -0.33
16 3.7449 0.00 -0.43 0.00 -0.36
17 3.7450 0.00 -0.30 0.00 -0.28
18 10.1191 0.00 -0.17 0.00 0.34
19 10.1193 0.00 0.27 0.00 0.31
20 10.1219 0.00 ( 2.71) 0.00 ( 2.84)
21 10.1405 0.00 0.24 0.00 0.07
22 10.2527 0.00 0.01 0.00 -0.09
23 11.1811 0.00 0.09 0.00 -0.02
24 12.1502 0.00 0.08 0.00 -0.13
25 12.1939 0.00 -0.09 0.00 0.18
26 13.0486 0.00 0.41 0.00 0.04
27 13.0487 0.00 0.11 0.00 0.16
28 13.1113 0.00 0.31 0.00 -0.29
29 13.2398 0.00 -0.23 0.00 0.12
30 13.2671 0.00 -0.34 0.00 -0.36
31 13.9987 0.00 -0.02 0.00 0.08
32 15.0471 0.00 0.04 0.00 0.18
33 15.1537 0.00 -0.23 0.00 -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.
612573 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.151 44.151 44.151 ecceobj 0.056 0.056 0.056 incobj 2.406 2.406 2.406 qmin 40.281 40.271 40.293 qmax 47.774 47.764 47.770 amean 43.920 43.921 43.921 amin 43.576 43.578 43.578 amax 44.293 44.293 44.293 emean 0.063 0.063 0.063 emin 0.046 0.046 0.046 emax 0.079 0.079 0.079 imean 1.971 1.971 1.971 imin 1.205 1.206 1.206 imax 2.658 2.659 2.658 excite_mean 0.072 0.072 0.072 fracstop 1.000 1.000 1.000 cjmean 3.094 3.094 3.094 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 186.6 186.7 186.7 kozaiamp 180.0 180.0 180.0