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: 612237 # Created Sun Nov 24 02:07:39 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 67 observations of 67 # Arc: 17.27y # First observation: 2001/08/19 # Last observation: 2018/11/26 # Chi-squared of fit: 93.27 DOF: 128 RMS: 0.21 # Min/Max residuals: -0.75 0.68 # Exact a, adot, b, bdot, g, gdot: 1.380565E-05 2.285747E-02 -1.946579E-07 -2.793956E-04 2.360184E-02 2.836225E-03 # 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 -1.265784 -7.598003 0.450377 -0.020134 -0.907017 2452140.780533 # Heliocentric elements and errors Epoch: 2452140.5000 = 2001/08/19 Mean Anomaly: 62.02559 +/- 0.000 Argument of Peri: 165.27775 +/- 0.000 Long of Asc Node: 111.80221 +/- 0.000 Inclination: 1.43062 +/- 0.000 Eccentricity: 0.11795447 +/- 0.0000 Semi-Major Axis: 45.25397805 +/- 0.0000 Time of Perihelion: 2432982.4199 +/- 0.0 Perihelion: 39.91606911 +/- 0.0000 Aphelion: 50.59188699 +/- 0.0000 Period (y) 304.4341 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 42.82984182 +/- 0.0000 Ecliptic Y -6.16109520 +/- 0.0000 Ecliptic Z -0.93598305 +/- 0.0000 Ecliptic XDOT 0.00066728 +/- 0.0000 Ecliptic YDOT 0.00258618 +/- 0.0000 Ecliptic ZDOT -0.00003946 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.28076155 +/- 0.0000 Geocenter to KBO 42.36953752 +/- 0.0000 # Hcoef: 6.72
The following table shows the complete astrometric record for 612237. 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 (612237) followed by the observatory code and reference code for the source of the astrometry.
2001 08 19.27979 23 34 05.66 -04 10 39.6 21.9R 612237 807 Cd7925 2001 08 19.36483 23 34 05.33 -04 10 41.9 612237 807 Cd7925 2001 08 20.31539 23 34 01.69 -04 11 06.0 612237 807 Cd7925 2001 08 20.40083 23 34 01.35 -04 11 08.3 612237 807 Cd7925 2001 08 21.31117 23 33 57.92 -04 11 31.7 22.0R 612237 807 Cd7925 2001 08 21.37861 23 33 57.65 -04 11 33.2 612237 807 Cd7925 2001 10 20.26721 23 29 53.79 -04 37 38.2 22.8R 612237 695 Ce0366 2001 10 20.32452 23 29 53.59 -04 37 39.5 612237 695 Ce0366 2002 11 07.11379 23 33 52.46 -04 12 45.7 22.8R 612237 695 Ci2660 2002 11 07.21339 23 33 52.21 -04 12 47.2 612237 695 Ci2660 2003 07 06.56076 23 45 26.56 -02 58 07.0 23.0R 612237 568 Ci2660 2003 07 07.54055 23 45 25.77 -02 58 14.4 612237 568 Ci2660 2003 07 08.54994 23 45 24.90 -02 58 22.1 612237 568 Ci2660 2003 07 09.53490 23 45 23.95 -02 58 30.2 612237 568 Ci2660 2005 08 30.69362 23 52 29.81 -02 15 32.4 22.4R 612237 250 S~06AP 2005 08 30.70034 23 52 29.78 -02 15 32.5 612237 250 S~06AP 2005 08 30.70705 23 52 29.75 -02 15 32.7 612237 250 S~06AP 2006 09 19.310577 23 55 52.55 -01 54 35.7 612237 645 C~1PqX 2006 09 19.311406 23 55 52.54 -01 54 35.7 612237 645 C~1PqX 2006 09 19.313897 23 55 52.54 -01 54 35.7 612237 645 C~1PqX 2013 10 05.31487 00 27 10.87 +01 23 50.6 22.5R 612237 695 C~0zdD 2013 10 05.35984 00 27 10.68 +01 23 49.5 612237 695 C~0zdD 2013 10 06.33591 00 27 06.57 +01 23 23.5 612237 695 C~0zdD 2013 10 13.10179 00 26 38.433 +01 20 23.42 23.6z 612237 W84 C~4yCS 2013 10 13.111563 00 26 38.40 +01 20 23.3 22.9i 612237 W84 C~351I 2013 10 13.11209 00 26 38.40 +01 20 23.3 23.0i 612237 W84 C~3cV0 2013 10 13.11209 00 26 38.400 +01 20 23.35 23.0i 612237 W84 C~4yCS 2013 10 28.074525 00 25 40.02 +01 14 17.4 23.0r 612237 W84 C~351I 2013 10 28.07505 00 25 40.02 +01 14 17.4 23.0r 612237 W84 C~3cV0 2013 10 28.07505 00 25 40.024 +01 14 17.39 22.7r 612237 W84 C~4yCS 2013 11 08.167558 00 25 02.42 +01 10 27.5 23.2r 612237 W84 C~351I 2013 11 08.16809 00 25 02.42 +01 10 27.5 23.2r 612237 W84 C~3cV0 2013 11 08.16809 00 25 02.420 +01 10 27.50 23.3r 612237 W84 C~4yCS 2013 11 22.08391 00 24 25.228 +01 06 48.13 23.9g 612237 W84 C~4yCS 2013 11 22.094803 00 24 25.20 +01 06 48.0 23.4r 612237 W84 C~351I 2013 11 22.09533 00 24 25.20 +01 06 48.0 23.7r 612237 W84 C~3cV0 2013 11 22.096204 00 24 25.19 +01 06 47.8 22.9i 612237 W84 C~351I 2013 11 22.09673 00 24 25.19 +01 06 47.8 23.0i 612237 W84 C~3cV0 2013 11 22.09673 00 24 25.192 +01 06 47.84 22.9i 612237 W84 C~4yCS 2014 08 18.31206 00 34 44.846 +02 12 37.23 22.4z 612237 W84 C~4yCS 2014 10 28.18822 00 30 12.002 +01 42 59.89 23.6r 612237 W84 C~4yCS 2016 09 09.280058 00 42 27.72 +03 00 38.5 23.1r 612237 W84 C~351I 2016 09 09.28058 00 42 27.723 +03 00 38.46 23.6r 612237 W84 C~4yCS 2016 09 09.28058 00 42 27.72 +03 00 38.5 23.5r 612237 W84 C~3cV0 2016 09 09.281424 00 42 27.71 +03 00 38.5 22.7i 612237 W84 C~351I 2016 09 09.28195 00 42 27.71 +03 00 38.5 23.1i 612237 W84 C~3cV0 2016 09 09.28332 00 42 27.701 +03 00 38.35 24.4g 612237 W84 C~4yCS 2016 11 08.14374 00 38 30.115 +02 35 34.27 23.2i 612237 W84 C~4yCS 2016 11 08.144583 00 38 30.10 +02 35 34.2 22.5z 612237 W84 C~351I 2016 11 08.14512 00 38 30.110 +02 35 34.12 22.8z 612237 W84 C~4yCS 2016 11 18.080810 00 38 00.29 +02 32 37.4 23.1r 612237 W84 C~351I 2016 11 18.08134 00 38 00.29 +02 32 37.4 23.4r 612237 W84 C~3cV0 2016 11 18.08271 00 38 00.287 +02 32 37.40 24.3g 612237 W84 C~4yCS 2016 11 26.101748 00 37 40.69 +02 30 45.3 23.2r 612237 W84 C~351I 2016 11 26.10227 00 37 40.69 +02 30 45.3 23.2r 612237 W84 C~3cV0 2016 11 26.10227 00 37 40.690 +02 30 45.23 22.8r 612237 W84 C~4yCS 2016 11 26.10867 00 37 40.676 +02 30 45.20 23.5i 612237 W84 C~4yCS 2016 11 26.11004 00 37 40.662 +02 30 44.86 24.3g 612237 W84 C~4yCS 2016 11 30.09140 00 37 32.616 +02 30 00.71 22.8z 612237 W84 C~4yCS 2017 08 28.276620 00 47 37.35 +03 33 17.1 23.1i 612237 W84 C~351I 2017 08 28.27714 00 47 37.349 +03 33 17.04 23.1i 612237 W84 C~4yCS 2017 08 28.277998 00 47 37.34 +03 33 17.0 22.9r 612237 W84 C~351I 2017 08 28.27853 00 47 37.344 +03 33 17.00 23.0r 612237 W84 C~4yCS 2018 10 18.19480 00 48 44.990 +03 39 41.55 22.6i 612237 W84 C~4yCS 2018 10 18.19616 00 48 44.991 +03 39 41.59 22.9z 612237 W84 C~4yCS 2018 11 26.07249 00 46 32.561 +03 26 26.44 23.6r 612237 W84 C~4yCS 2018 11 26.07387 00 46 32.558 +03 26 26.58 24.1g 612237 W84 C~4yCS
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 0.29 0.00 0.12
2 0.0002 0.00 0.24 0.00 -0.02
3 0.0028 0.00 -0.27 0.00 0.07
4 0.0031 0.00 -0.40 0.00 -0.05
5 0.0056 0.00 0.45 0.00 -0.08
6 0.0057 0.00 0.36 0.00 0.16
7 0.1697 0.00 0.22 0.00 0.10
8 0.1699 0.00 0.17 0.00 -0.03
9 1.2179 0.00 0.18 0.00 -0.02
10 1.2182 0.00 0.04 0.00 -0.16
11 1.8789 0.00 -0.65 0.00 -0.09
12 1.8816 0.00 -0.75 0.00 -0.43
13 1.8844 0.00 -0.46 0.00 -0.36
14 1.8871 0.00 -0.56 0.00 -0.37
15 4.0312 0.00 0.41 0.00 0.39
16 4.0313 0.00 0.36 0.00 0.47
17 4.0313 0.00 0.31 0.00 0.45
18 5.0843 0.00 -0.03 0.00 -0.02
19 5.0843 0.00 -0.12 0.00 0.00
20 5.0843 0.00 0.04 0.00 0.07
21 12.1288 0.00 -0.10 0.00 0.25
22 12.1289 0.00 -0.06 0.00 0.36
23 12.1316 0.00 -0.13 0.00 0.68
24 12.1501 0.00 -0.13 0.00 -0.24
25 12.1501 0.00 -0.01 0.00 -0.11
26 12.1501 0.00 0.02 0.00 -0.05
27 12.1501 0.00 0.02 0.00 -0.10
28 12.1911 0.00 0.04 0.00 0.08
29 12.1911 0.00 0.13 0.00 0.08
30 12.1911 0.00 0.07 0.00 0.09
31 12.2215 0.00 0.03 0.00 0.04
32 12.2215 0.00 0.06 0.00 0.05
33 12.2215 0.00 0.06 0.00 0.05
34 12.2596 0.00 0.10 0.00 -0.02
35 12.2596 0.00 0.05 0.00 -0.02
36 12.2596 0.00 0.07 0.00 -0.01
37 12.2596 0.00 -0.05 0.00 -0.20
38 12.2596 0.00 -0.00 0.00 -0.15
39 12.2596 0.00 -0.03 0.00 -0.19
40 12.9967 0.00 0.39 0.00 0.06
41 13.1907 0.00 0.12 0.00 -0.09
42 15.0582 0.00 0.20 0.00 0.00
43 15.0582 0.00 0.23 0.00 0.01
44 15.0582 0.00 0.27 0.00 -0.03
45 15.0582 0.00 0.12 0.00 0.04
46 15.0582 0.00 0.15 0.00 0.05
47 15.0582 0.00 0.10 0.00 -0.07
48 15.2221 0.00 -0.03 0.00 0.01
49 15.2221 0.00 -0.21 0.00 -0.04
50 15.2221 0.00 -0.04 0.00 -0.11
51 15.2493 0.00 -0.05 0.00 -0.07
52 15.2493 0.00 -0.02 0.00 -0.06
53 15.2493 0.00 -0.01 0.00 -0.04
54 15.2712 0.00 -0.13 0.00 0.01
55 15.2712 0.00 -0.11 0.00 -0.05
56 15.2712 0.00 -0.11 0.00 0.02
57 15.2713 0.00 -0.11 0.00 -0.01
58 15.2713 0.00 -0.27 0.00 -0.33
59 15.2822 0.00 -0.23 0.00 -0.02
60 16.0246 0.00 0.14 0.00 0.09
61 16.0246 0.00 0.15 0.00 0.04
62 16.0246 0.00 0.05 0.00 0.02
63 16.0246 0.00 0.14 0.00 0.03
64 17.1634 0.00 -0.08 0.00 0.00
65 17.1634 0.00 0.02 0.00 0.08
66 17.2698 0.00 -0.22 0.00 -0.13
67 17.2698 0.00 -0.21 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.
612237 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.506 45.506 45.505 ecceobj 0.121 0.121 0.121 incobj 1.430 1.430 1.430 qmin 39.275 39.242 39.262 qmax 51.627 51.653 51.616 amean 45.274 45.275 45.274 amin 44.900 44.907 44.901 amax 45.682 45.692 45.694 emean 0.116 0.116 0.116 emin 0.100 0.100 0.100 emax 0.130 0.130 0.130 imean 0.910 0.910 0.910 imin 0.183 0.183 0.183 imax 1.511 1.511 1.511 excite_mean 0.117 0.117 0.117 fracstop 1.000 1.000 1.000 cjmean 3.100 3.100 3.100 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 166.1 165.9 166.2 kozaiamp 179.9 180.0 180.0