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: 612060 # Created Sun Dec 22 02:07:42 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 32 observations of 34 # Arc: 14.88y # First observation: 1998/04/28 # Last observation: 2013/03/13 # Chi-squared of fit: 129.15 DOF: 58 RMS: 0.36 # Min/Max residuals: -0.97 2.08 # Exact a, adot, b, bdot, g, gdot: 1.881425E-05 3.643493E-02 1.502944E-06 5.637387E-03 3.132163E-02 -3.925277E-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 -0.079241 -166.408457 -0.409060 -0.001500 -0.925442 2450931.801491 # Heliocentric elements and errors Epoch: 2450932.5000 = 1998/04/29 Mean Anomaly: 335.10394 +/- 0.000 Argument of Peri: 35.65331 +/- 0.000 Long of Asc Node: 194.81034 +/- 0.000 Inclination: 8.80588 +/- 0.000 Eccentricity: 0.18590411 +/- 0.0000 Semi-Major Axis: 39.13026986 +/- 0.0000 Time of Perihelion: 2457115.4504 +/- 0.0 Perihelion: 31.85579179 +/- 0.0000 Aphelion: 46.40474794 +/- 0.0000 Period (y) 244.7809 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -31.82770838 +/- 0.0000 Ecliptic Y -8.12095131 +/- 0.0000 Ecliptic Z -0.04409674 +/- 0.0000 Ecliptic XDOT 0.00108322 +/- 0.0000 Ecliptic YDOT -0.00300642 +/- 0.0000 Ecliptic ZDOT 0.00049316 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 32.84750400 +/- 0.0000 Geocenter to KBO 31.92692275 +/- 0.0000 # Hcoef: 8.35
The following table shows the complete astrometric record for 612060. 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 (612060) followed by the observatory code and reference code for the source of the astrometry.
1998 04 28.30076 12 49 54.21 -05 26 12.1 23.4R 612060 568 Ca4478 1998 04 28.36758 12 49 53.88 -05 26 10.1 23.4R 612060 568 Ca4478 1998 04 28.44050 12 49 53.52 -05 26 07.6 23.4R 612060 568 Ca4478 1998 05 01.34968 12 49 39.48 -05 24 29.1 23.4R 612060 568 Ca4478 1998 05 01.36130 12 49 39.44 -05 24 28.8 23.4R 612060 568 Ca4478 1998 05 01.37333 12 49 39.38 -05 24 28.2 23.4R 612060 568 Ca4478 1998 05 22.32191 12 48 14.83 -05 14 22.1 23.4R 612060 568 Ca4478 1998 05 22.33353 12 48 14.80 -05 14 21.5 23.4R 612060 568 Ca4478 1998 05 22.34517 12 48 14.75 -05 14 21.1 23.4R 612060 568 Ca4478 1998 06 30.30472 12 47 24.42 -05 06 48.6 23.4R 612060 568 Ca4478 1999 01 22.53850 13 04 41.22 -06 42 58.5 23.0R 612060 568 Ca5540 1999 01 24.60212 13 04 40.24 -06 42 44.5 612060 568 Ca5540 1999 03 10.58587 13 02 29.92 -06 26 34.1 23.4R 612060 568 Ca4825 1999 03 10.60646 13 02 29.79 -06 26 33.2 23.4R 612060 568 Ca4825 1999 04 08.49389 12 59 56.72 -06 09 01.4 22.8R 612060 568 Ca4825 1999 04 08.52123 12 59 56.55 -06 09 00.1 22.8R 612060 568 Ca4825 1999 05 05.91788 12 57 33.75 -05 52 39.6 612060 950 Ca4825 1999 05 05.98698 12 57 33.43 -05 52 38.0 612060 950 Ca4825 1999 05 06.03852 12 57 33.15 -05 52 35.9 612060 950 Ca4825 2001 04 27.33472 13 14 56.67 -06 57 28.8 22.8R 612060 568 Cd0712 2001 04 27.44260 13 14 56.09 -06 57 25.0 612060 568 Cd0712 2001 05 19.29265 13 13 12.61 -06 45 59.8 22.9R 612060 568 Ce6434 2001 05 20.29071 13 13 08.61 -06 45 33.3 612060 568 Ce6434 2001 05 20.37596 13 13 08.27 -06 45 31.1 612060 568 Ce6434 2006 05 26.214231 13 55 35.62 -09 06 41.1 612060 645 C~1S6l 2006 05 26.215061 13 55 35.62 -09 06 41.1 612060 645 C~1S6l 2006 05 26.217549 13 55 35.61 -09 06 41.1 612060 645 C~1S6l 2007 04 22.24032 14 07 27.22 -09 51 14.7 21.8R 612060 807 C~0sOh 2007 04 22.30373 14 07 26.85 -09 51 12.6 612060 807 C~0sOh 2013 03 12.41695 15 04 12.64 -12 31 31.7 23.4R 612060 695 C~0ucn 2013 03 12.49883 15 04 12.43 -12 31 29.8 612060 695 C~0ucn 2013 03 13.45994 15 04 09.91 -12 31 08.8 612060 695 C~0ucn 2013 05 14.33024 14 59 04.83 -12 02 26.1 23.1R 612060 G37 C~0snV 2013 05 14.37672 14 59 04.55 -12 02 24.7 612060 G37 C~0snV
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 0.03 0.00 0.29
2 0.0002 0.00 0.10 0.00 -0.01
3 0.0004 0.00 0.17 0.00 -0.01
4 0.0083 0.00 -0.21 0.00 -0.03
5 0.0084 0.00 0.04 0.00 -0.12
6 0.0084 0.00 0.01 0.00 0.08
7 0.0658 0.00 -0.20 0.00 -0.37
8 0.0658 0.00 -0.07 0.00 -0.05
9 0.0658 0.00 -0.24 0.00 0.07
10 0.1725 0.00 -0.45 0.00 -0.37
11 0.7371 0.00 0.42 0.00 -0.03
12 0.7428 0.00 0.53 0.00 0.28
13 0.8659 0.00 -0.51 0.00 -0.03
14 0.8660 0.00 -0.97 0.00 0.19
15 0.9451 0.00 0.06 0.00 0.09
16 0.9452 0.00 -0.17 0.00 0.35
17 1.0202 0.00 ( 2.50) 0.00 ( -0.04)
18 1.0204 0.00 ( 2.62) 0.00 ( -0.66)
19 1.0205 0.00 2.08 0.00 -0.21
20 2.9980 0.00 0.09 0.00 -0.01
21 2.9983 0.00 0.13 0.00 0.01
22 3.0582 0.00 -0.04 0.00 0.21
23 3.0609 0.00 -0.02 0.00 0.11
24 3.0611 0.00 0.09 0.00 0.06
25 8.0764 0.00 -0.40 0.00 -0.17
26 8.0764 0.00 -0.34 0.00 -0.19
27 8.0764 0.00 -0.32 0.00 -0.25
28 8.9827 0.00 -0.11 0.00 0.08
29 8.9829 0.00 -0.09 0.00 -0.00
30 14.8723 0.00 0.24 0.00 -0.17
31 14.8725 0.00 0.34 0.00 -0.03
32 14.8752 0.00 -0.06 0.00 0.02
33 15.0446 0.00 0.03 0.00 0.03
34 15.0447 0.00 0.01 0.00 0.15
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.
612060 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.084 39.084 39.084 ecceobj 0.184 0.184 0.184 incobj 8.811 8.811 8.811 qmin 31.001 31.005 31.005 qmax 48.323 48.365 48.324 amean 39.456 39.456 39.456 amin 39.060 39.065 39.059 amax 39.908 39.907 39.903 emean 0.191 0.191 0.191 emin 0.167 0.167 0.167 emax 0.213 0.213 0.214 imean 9.407 9.407 9.407 imin 8.652 8.652 8.652 imax 10.261 10.277 10.263 excite_mean 0.252 0.252 0.252 fracstop 1.000 1.000 1.000 cjmean 2.980 2.980 2.980 libcent 0 180.5 180.5 180.4 libamp 0 62.1 61.2 61.5 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 189.0 188.9 188.9 kozaiamp 180.0 180.0 180.0