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: 612985 # Created Sun Dec 22 02:07:48 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 62 observations of 62 # Arc: 15.02y # First observation: 2005/05/10 # Last observation: 2020/05/15 # Chi-squared of fit: 129.50 DOF: 118 RMS: 0.26 # Min/Max residuals: -0.65 0.71 # Exact a, adot, b, bdot, g, gdot: 1.321136E-05 1.855846E-02 2.625177E-06 4.696357E-03 2.191505E-02 7.193898E-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 -1.280904 -140.058708 -0.171203 -0.022062 -0.991707 2453500.703813 # Heliocentric elements and errors Epoch: 2453500.5000 = 2005/05/10 Mean Anomaly: 152.96533 +/- 0.000 Argument of Peri: 197.15063 +/- 0.000 Long of Asc Node: 225.09916 +/- 0.000 Inclination: 14.22986 +/- 0.000 Eccentricity: 0.10234622 +/- 0.0000 Semi-Major Axis: 42.65674717 +/- 0.0000 Time of Perihelion: 2410262.0081 +/- 0.0 Perihelion: 38.29099054 +/- 0.0000 Aphelion: 47.02250380 +/- 0.0000 Period (y) 278.6056 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -35.63100108 +/- 0.0000 Ecliptic Y -30.05691381 +/- 0.0000 Ecliptic Z -1.01991675 +/- 0.0000 Ecliptic XDOT 0.00141020 +/- 0.0000 Ecliptic YDOT -0.00185078 +/- 0.0000 Ecliptic ZDOT 0.00058461 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 46.62643050 +/- 0.0000 Geocenter to KBO 45.63076643 +/- 0.0000 # Hcoef: 6.06
The following table shows the complete astrometric record for 612985. 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 (612985) followed by the observatory code and reference code for the source of the astrometry.
2005 05 10.20307 14 28 27.18 -16 00 39.1 21.0R 612985 807 Cn5431 2005 05 11.03883 14 28 23.64 -16 00 19.3 612985 807 Cn5431 2005 05 11.12793 14 28 23.26 -16 00 17.3 612985 807 Cn5431 2005 06 02.33776 14 26 56.11 -15 51 59.9 22.5R 612985 568 Cn6562 2005 06 02.37203 14 26 55.99 -15 51 59.2 612985 568 Cn6562 2005 06 07.16824 14 26 39.76 -15 50 22.1 22.3R 612985 304 Cn6562 2005 06 07.21273 14 26 39.61 -15 50 21.1 612985 304 Cn6562 2005 07 09.06779 14 25 28.05 -15 42 21.7 22.3R 612985 304 Cn8899 2005 07 09.12024 14 25 28.02 -15 42 21.2 612985 304 Cn8899 2005 08 08.00979 14 25 31.62 -15 40 27.6 21.1R 612985 807 Co4001 2005 08 09.01813 14 25 33.01 -15 40 30.1 612985 807 Co4001 2005 08 10.01076 14 25 34.46 -15 40 33.1 612985 807 Co4001 2006 04 22.26917 14 34 19.34 -16 12 28.3 22.2R 612985 304 Cr3594 2006 04 22.32154 14 34 19.10 -16 12 27.5 612985 304 Cr3594 2006 04 26.22973 14 34 02.35 -16 10 58.1 21.0R 612985 807 Cr3594 2006 04 26.31446 14 34 01.98 -16 10 56.0 612985 807 Cr3594 2006 04 28.09123 14 33 54.30 -16 10 15.5 612985 807 Cr3594 2008 04 05.36194 14 44 32.47 -16 26 26.6 23.2R 612985 688 Cy5744 2008 04 05.45512 14 44 32.10 -16 26 24.1 612985 688 Cy5744 2008 04 14.04476 14 43 58.47 -16 23 30.4 23.1R 612985 250 S~06As 2008 04 14.05865 14 43 58.42 -16 23 30.1 612985 250 S~06As 2008 04 14.06490 14 43 58.39 -16 23 30.0 612985 250 S~06As 2008 04 14.07115 14 43 58.36 -16 23 29.9 612985 250 S~06As 2011 06 02.33879 14 54 09.840 -16 15 58.12 22.8G 612985 F51 C~2rXi 2011 07 19.26639 14 52 10.184 -16 05 25.49 22.6G 612985 F51 C~2rXi 2012 05 14.44223 14 59 56.141 -16 24 41.04 22.2G 612985 F51 C~2rXi 2013 04 13.47686 15 06 39.650 -16 37 25.64 23.3G 612985 F51 C~2rXi 2013 05 09.41359 15 04 50.426 -16 28 39.67 22.7G 612985 F51 C~2rXi 2013 05 18.34941 15 04 11.486 -16 25 35.16 22.0G 612985 F51 C~2rXi 2014 03 28.61922 15 12 05.957 -16 43 41.31 23.5G 612985 F51 C~2rXi 2014 05 10.45217 15 09 18.295 -16 30 10.29 22.3G 612985 F51 C~2rXi 2014 06 03.40768 15 07 36.665 -16 22 20.98 22.6G 612985 F51 C~2rXi 2014 06 19.33617 15 06 39.082 -16 17 55.81 22.8G 612985 F51 C~2rXi 2014 06 21.38053 15 06 32.568 -16 17 25.90 612985 F51 C~2rXi 2014 07 01.31602 15 06 04.634 -16 15 15.62 22.6G 612985 F51 C~2rXj 2014 07 03.32096 15 05 59.777 -16 14 52.74 22.3G 612985 F51 C~2rXj 2015 01 24.65422 15 17 02.757 -16 51 11.51 22.9G 612985 F51 C~2rXj 2015 02 24.63722 15 17 32.167 -16 50 47.53 22.8G 612985 F51 C~2rXj 2015 02 24.64819 15 17 32.166 -16 50 47.26 22.8G 612985 F51 C~2rXj 2015 05 20.06929 15 13 08.78 -16 28 29.9 23.1V 612985 W84 C~1Til 2015 05 22.15654 15 12 59.76 -16 27 49.2 612985 W84 C~1Til 2015 05 23.06947 15 12 55.85 -16 27 31.7 612985 W84 C~1Til 2015 05 24.06954 15 12 51.55 -16 27 12.4 612985 W84 C~1Til 2015 05 24.45327 15 12 49.917 -16 27 05.23 23.2G 612985 F51 C~2rXj 2015 05 25.40896 15 12 45.860 -16 26 46.94 22.2G 612985 F51 C~2rXj 2015 06 11.31684 15 11 38.099 -16 21 43.67 22.6G 612985 F51 C~2rXj 2015 06 16.40081 15 11 19.866 -16 20 22.68 22.8G 612985 F51 C~2rXj 2015 07 19.28565 15 09 59.353 -16 14 20.40 22.6G 612985 F51 C~2rXj 2016 03 07.62420 15 21 49.844 -16 50 00.93 23.1G 612985 F51 C~2rXj 2016 03 17.59955 15 21 32.528 -16 48 09.70 22.6G 612985 F51 C~2rXj 2016 05 07.48393 15 18 32.347 -16 33 31.19 22.2G 612985 F51 C~2rXj 2017 02 05.64974 15 26 16.255 -16 52 54.58 23.1G 612985 F51 C~2rXj 2017 03 25.58425 15 25 44.043 -16 46 55.59 21.6G 612985 F51 C~2rXj 2017 03 27.63069 15 25 38.581 -16 46 26.02 22.8G 612985 F51 C~2rXj 2017 04 05.53101 15 25 11.653 -16 44 06.74 22.8G 612985 F51 C~2rXj 2017 04 26.49116 15 23 52.408 -16 37 51.56 22.6G 612985 F51 C~2rXj 2017 04 27.51510 15 23 48.134 -16 37 31.97 22.8G 612985 F51 C~2rXj 2017 05 19.41472 15 22 12.929 -16 30 31.43 24.0G 612985 F51 C~2rXj 2018 05 19.46318 15 26 45.610 -16 31 01.77 22.7G 612985 F51 C~2rXj 2020 05 15.44604 15 36 04.365 -16 31 51.54 22.3w 612985 F51 C~3smC 2020 05 15.46815 15 36 04.245 -16 31 51.22 22.3w 612985 F51 C~3smC 2020 05 15.47912 15 36 04.172 -16 31 51.10 22.4w 612985 F51 C~3smC
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 0.09 0.00 0.14
2 0.0023 0.00 0.03 0.00 0.23
3 0.0025 0.00 0.07 0.00 0.14
4 0.0633 0.00 0.02 0.00 -0.09
5 0.0634 0.00 0.06 0.00 -0.10
6 0.0766 0.00 0.08 0.00 -0.12
7 0.0767 0.00 0.04 0.00 -0.00
8 0.1639 0.00 -0.63 0.00 -0.33
9 0.1640 0.00 -0.17 0.00 -0.35
10 0.2459 0.00 0.14 0.00 -0.15
11 0.2486 0.00 -0.07 0.00 -0.18
12 0.2514 0.00 -0.28 0.00 -0.34
13 0.9502 0.00 -0.46 0.00 0.26
14 0.9504 0.00 -0.65 0.00 -0.13
15 0.9611 0.00 0.01 0.00 -0.05
16 0.9613 0.00 0.03 0.00 0.09
17 0.9662 0.00 -0.11 0.00 -0.41
18 2.9053 0.00 0.03 0.00 -0.03
19 2.9055 0.00 -0.17 0.00 0.66
20 2.9291 0.00 0.61 0.00 0.50
21 2.9291 0.00 0.71 0.00 0.51
22 2.9291 0.00 0.64 0.00 0.48
23 2.9291 0.00 0.57 0.00 0.45
24 6.0620 0.00 -0.02 0.00 -0.15
25 6.1905 0.00 -0.00 0.00 -0.53
26 7.0123 0.00 -0.03 0.00 -0.10
27 7.9268 0.00 -0.37 0.00 -0.17
28 7.9978 0.00 -0.23 0.00 0.07
29 8.0223 0.00 0.01 0.00 0.13
30 8.8827 0.00 0.33 0.00 -0.43
31 9.0000 0.00 0.08 0.00 -0.17
32 9.0656 0.00 -0.12 0.00 -0.08
33 9.1092 0.00 0.29 0.00 -0.17
34 9.1148 0.00 -0.07 0.00 -0.26
35 9.1420 0.00 0.06 0.00 -0.06
36 9.1475 0.00 0.13 0.00 -0.06
37 9.7097 0.00 -0.22 0.00 -0.09
38 9.7945 0.00 -0.10 0.00 -0.11
39 9.7945 0.00 -0.03 0.00 0.09
40 10.0256 0.00 -0.65 0.00 0.35
41 10.0314 0.00 -0.38 0.00 0.31
42 10.0339 0.00 -0.18 0.00 0.10
43 10.0366 0.00 -0.37 0.00 0.10
44 10.0376 0.00 -0.10 0.00 0.06
45 10.0403 0.00 0.07 0.00 0.04
46 10.0866 0.00 0.12 0.00 0.19
47 10.1005 0.00 0.16 0.00 -0.01
48 10.1905 0.00 0.18 0.00 -0.06
49 10.8266 0.00 -0.09 0.00 -0.07
50 10.8539 0.00 0.02 0.00 -0.03
51 10.9932 0.00 0.03 0.00 -0.12
52 11.7439 0.00 -0.06 0.00 -0.12
53 11.8751 0.00 -0.18 0.00 -0.04
54 11.8807 0.00 0.04 0.00 -0.04
55 11.9051 0.00 -0.05 0.00 0.39
56 11.9625 0.00 -0.08 0.00 -0.07
57 11.9653 0.00 0.12 0.00 0.03
58 12.0252 0.00 0.11 0.00 -0.17
59 13.0247 0.00 -0.07 0.00 0.13
60 15.0150 0.00 0.52 0.00 0.09
61 15.0151 0.00 0.21 0.00 0.01
62 15.0151 0.00 -0.15 0.00 -0.07
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.
612985 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 42.210 42.210 42.210 ecceobj 0.112 0.112 0.112 incobj 14.315 14.315 14.315 qmin 36.204 36.204 36.206 qmax 49.035 49.042 49.034 amean 42.532 42.532 42.532 amin 42.166 42.162 42.164 amax 42.927 42.929 42.936 emean 0.119 0.119 0.119 emin 0.093 0.093 0.092 emax 0.144 0.144 0.144 imean 15.333 15.333 15.333 imin 14.417 14.417 14.412 imax 16.300 16.299 16.299 excite_mean 0.290 0.290 0.290 fracstop 1.000 1.000 1.000 cjmean 2.984 2.984 2.984 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 186.6 186.7 186.6 kozaiamp 180.0 180.0 180.0