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: 536921 # Created Sat Apr 27 01:08:47 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 58 observations of 58 # Arc: 12.13y # First observation: 2011/04/30 # Last observation: 2023/06/15 # Chi-squared of fit: 97.49 DOF: 110 RMS: 0.23 # Min/Max residuals: -1.58 0.88 # Exact a, adot, b, bdot, g, gdot: 1.796187E-05 3.195899E-02 3.565497E-06 6.479751E-03 2.912009E-02 1.441710E-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 17.198186 -152.508953 -0.208568 0.292267 -0.944439 2455681.895196 # Heliocentric elements and errors Epoch: 2455682.5000 = 2011/05/01 Mean Anomaly: 19.21773 +/- 0.000 Argument of Peri: 31.76147 +/- 0.000 Long of Asc Node: 152.89201 +/- 0.000 Inclination: 20.15454 +/- 0.000 Eccentricity: 0.12786580 +/- 0.0000 Semi-Major Axis: 40.03079932 +/- 0.0000 Time of Perihelion: 2450744.0652 +/- 0.0 Perihelion: 34.91222905 +/- 0.0000 Aphelion: 45.14936959 +/- 0.0000 Period (y) 253.2792 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -29.87724559 +/- 0.0000 Ecliptic Y -15.78506499 +/- 0.0000 Ecliptic Z 10.15389455 +/- 0.0000 Ecliptic XDOT 0.00143004 +/- 0.0000 Ecliptic YDOT -0.00263616 +/- 0.0000 Ecliptic ZDOT 0.00062209 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.28338985 +/- 0.0000 Geocenter to KBO 34.34057428 +/- 0.0000 # Hcoef: 7.05
The following table shows the complete astrometric record for 536921. 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 (536921) followed by the observatory code and reference code for the source of the astrometry.
2011 04 30.39443 14 06 34.123 +05 30 05.26 22.3w 536921 F51 C~1vYW 2011 04 30.40799 14 06 34.061 +05 30 05.52 22.5w 536921 F51 C~1vYW 2011 04 30.42305 14 06 33.969 +05 30 06.08 22.5w 536921 F51 C~1vYW 2011 04 30.43667 14 06 33.900 +05 30 06.29 22.6w 536921 F51 C~1vYW 2012 03 29.46474 14 16 34.400 +04 53 37.99 22.3G 536921 F51 C~2rYO 2012 03 29.47907 14 16 34.333 +04 53 38.58 22.8G 536921 F51 C~2rYO 2012 03 29.49351 14 16 34.278 +04 53 39.08 22.2G 536921 F51 C~2rYO 2012 03 29.50803 14 16 34.205 +04 53 39.96 22.3G 536921 F51 C~2rYO 2012 04 20.42494 14 14 45.491 +05 07 17.07 22.8G 536921 F51 C~2rYO 2012 04 26.43240 14 14 13.894 +05 10 23.22 22.6G 536921 F51 C~2rYO 2012 08 04.26497 14 10 04.976 +05 01 18.02 22.5G 536921 F51 C~2rYO 2014 04 05.42553 14 30 43.138 +04 20 39.87 21.6w 536921 F51 C~1wc3 2014 04 05.43779 14 30 43.049 +04 20 41.93 22.4w 536921 F51 C~1vYW 2014 04 05.45005 14 30 42.999 +04 20 42.45 22.7w 536921 F51 C~1vYW 2014 04 05.46231 14 30 42.921 +04 20 43.01 22.5w 536921 F51 C~1vYW 2014 05 05.40402 14 28 10.053 +04 37 02.73 22.1G 536921 F51 C~2rYO 2014 05 25.38568 14 26 30.049 +04 43 04.67 22.5w 536921 F51 C~1vYW 2014 05 25.39872 14 26 29.977 +04 43 04.63 22.5w 536921 F51 C~1vYW 2014 05 25.41174 14 26 29.932 +04 43 04.86 22.6w 536921 F51 C~1vYW 2014 05 25.42485 14 26 29.854 +04 43 05.03 22.8w 536921 F51 C~1vYW 2014 05 31.45983 14 26 02.732 +04 43 57.78 23.1G 536921 F51 C~2rYO 2014 06 22.37444 14 24 44.482 +04 43 18.72 22.6G 536921 F51 C~2rYO 2014 07 02.31043 14 24 21.925 +04 41 02.93 23.4G 536921 F51 C~2rYO 2015 02 15.62137 14 40 11.953 +03 28 46.27 21.7G 536921 F51 C~2rYO 2015 02 16.56314 14 40 11.589 +03 29 20.67 23.4G 536921 F51 C~2rYO 2015 02 16.57654 14 40 11.593 +03 29 20.95 22.9G 536921 F51 C~2rYO 2015 02 16.58991 14 40 11.577 +03 29 21.57 22.9G 536921 F51 C~2rYO 2015 02 16.60332 14 40 11.587 +03 29 22.17 22.3G 536921 F51 C~2rYO 2015 03 22.50734 14 38 58.858 +03 52 10.47 22.7w 536921 F51 C~1vYW 2015 03 22.52098 14 38 58.791 +03 52 10.69 22.7w 536921 F51 C~1vYW 2015 03 22.53474 14 38 58.756 +03 52 11.87 22.7w 536921 F51 C~1vYW 2015 03 22.54845 14 38 58.674 +03 52 11.82 22.5w 536921 F51 C~1vYW 2015 04 13.45940 14 37 22.900 +04 06 36.84 22.2G 536921 F51 C~2rYO 2015 04 23.49839 14 36 31.874 +04 12 20.10 22.2w 536921 F51 C~1vYW 2015 04 23.51265 14 36 31.810 +04 12 20.37 22.5w 536921 F51 C~1vYW 2015 04 23.52685 14 36 31.725 +04 12 20.88 22.6w 536921 F51 C~1vYW 2015 04 23.54109 14 36 31.659 +04 12 21.59 22.3w 536921 F51 C~1vYW 2015 04 24.53087 14 36 26.476 +04 12 52.36 22.5G 536921 F51 C~2rYO 2015 04 24.54506 14 36 26.400 +04 12 52.88 22.6G 536921 F51 C~2rYO 2015 04 24.55925 14 36 26.339 +04 12 53.38 23.0G 536921 F51 C~2rYO 2015 04 24.57348 14 36 26.268 +04 12 53.96 22.3G 536921 F51 C~2rYO 2016 02 05.64161 14 47 14.746 +03 04 18.05 22.2G 536921 F51 C~2rYO 2016 03 16.63389 14 46 29.282 +03 29 33.74 23.0G 536921 F51 C~2rYO 2016 04 01.51056 14 45 30.017 +03 40 22.17 23.1G 536921 F51 C~2rYO 2016 05 03.40846 14 42 52.227 +03 58 22.40 22.8G 536921 F51 C~2rYO 2016 06 03.35603 14 40 18.664 +04 06 35.34 22.2G 536921 F51 C~2rYO 2016 06 03.36769 14 40 18.617 +04 06 35.33 22.3G 536921 F51 C~2rYO 2016 06 03.37932 14 40 18.556 +04 06 35.27 23.1G 536921 F51 C~2rYO 2016 07 01.30716 14 38 44.619 +04 04 01.48 22.5G 536921 F51 C~2rYO 2016 07 17.27835 14 38 21.477 +03 58 25.43 22.5G 536921 F51 C~2rYO 2017 05 18.29223 14 48 50.234 +03 44 26.76 22.5G 536921 F51 C~2rYO 2018 04 10.32145 14 59 17.400 +03 07 08.20 22.5R 536921 G37 C~2bHP 2018 04 10.40599 14 59 17.019 +03 07 11.11 536921 G37 C~2bHP 2018 04 10.44996 14 59 16.832 +03 07 12.82 536921 G37 C~2bHP 2018 05 19.166460 14 55 59.23 +03 25 21.5 21.3G 536921 705 C~2rAO 2018 05 19.235450 14 55 58.90 +03 25 22.7 21.3G 536921 705 C~2rAO 2023 06 15.195070 15 29 10.227 +01 52 55.96 22.8G 536921 G37 C~6wTg 2023 06 15.239040 15 29 10.025 +01 52 55.86 536921 G37 C~6wTg
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 -0.12 0.00 0.04
2 0.0000 0.00 0.03 0.00 -0.07
3 0.0001 0.00 -0.14 0.00 0.08
4 0.0001 0.00 -0.09 0.00 -0.08
5 0.9146 0.00 -0.20 0.00 0.03
6 0.9147 0.00 -0.21 0.00 0.03
7 0.9147 0.00 -0.03 0.00 -0.06
8 0.9148 0.00 -0.12 0.00 0.23
9 0.9748 0.00 -0.02 0.00 0.22
10 0.9912 0.00 0.04 0.00 -0.11
11 1.2645 0.00 0.88 0.00 -0.03
12 2.9323 0.00 0.37 0.00 -1.58
13 2.9324 0.00 -0.09 0.00 0.00
14 2.9324 0.00 0.04 0.00 0.04
15 2.9324 0.00 -0.25 0.00 0.13
16 3.0144 0.00 0.05 0.00 -0.00
17 3.0691 0.00 0.25 0.00 0.23
18 3.0691 0.00 0.10 0.00 0.05
19 3.0692 0.00 0.35 0.00 0.14
20 3.0692 0.00 0.11 0.00 0.16
21 3.0857 0.00 -0.14 0.00 0.07
22 3.1457 0.00 -0.09 0.00 0.46
23 3.1729 0.00 -0.17 0.00 0.16
24 3.7980 0.00 0.31 0.00 -0.13
25 3.8006 0.00 -0.07 0.00 0.08
26 3.8006 0.00 0.10 0.00 -0.13
27 3.8007 0.00 -0.04 0.00 0.00
28 3.8007 0.00 0.21 0.00 0.12
29 3.8935 0.00 0.10 0.00 0.19
30 3.8936 0.00 -0.13 0.00 -0.16
31 3.8936 0.00 0.12 0.00 0.45
32 3.8936 0.00 -0.33 0.00 -0.17
33 3.9536 0.00 -0.10 0.00 0.01
34 3.9811 0.00 -0.03 0.00 0.14
35 3.9812 0.00 0.15 0.00 -0.05
36 3.9812 0.00 0.00 0.00 0.01
37 3.9812 0.00 0.14 0.00 0.27
38 3.9839 0.00 -0.25 0.00 -0.21
39 3.9840 0.00 -0.26 0.00 -0.13
40 3.9840 0.00 -0.05 0.00 -0.08
41 3.9841 0.00 0.02 0.00 0.06
42 4.7700 0.00 0.16 0.00 -0.07
43 4.8795 0.00 0.06 0.00 -0.30
44 4.9230 0.00 -0.00 0.00 -0.10
45 5.0103 0.00 0.09 0.00 0.08
46 5.0950 0.00 -0.12 0.00 0.10
47 5.0951 0.00 -0.05 0.00 0.03
48 5.0951 0.00 -0.18 0.00 -0.08
49 5.1716 0.00 -0.22 0.00 0.17
50 5.2153 0.00 0.01 0.00 -0.12
51 6.0504 0.00 -0.15 0.00 -0.08
52 6.9457 0.00 -0.32 0.00 0.14
53 6.9460 0.00 -0.14 0.00 -0.08
54 6.9461 0.00 0.12 0.00 0.01
55 7.0521 0.00 -0.15 0.00 -0.08
56 7.0523 0.00 0.31 0.00 -0.05
57 12.1254 0.00 0.07 0.00 0.11
58 12.1255 0.00 0.04 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.
536921 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 39.959 39.959 39.959 ecceobj 0.126 0.126 0.126 incobj 20.162 20.162 20.162 qmin 34.052 34.000 33.991 qmax 46.746 46.700 46.754 amean 40.218 40.227 40.218 amin 39.833 39.866 39.838 amax 40.626 40.625 40.624 emean 0.130 0.131 0.131 emin 0.111 0.113 0.111 emax 0.151 0.152 0.153 imean 19.564 19.573 19.544 imin 18.547 18.528 18.546 imax 20.598 20.559 20.609 excite_mean 0.359 0.360 0.359 fracstop 1.000 1.000 1.000 cjmean 2.908 2.908 2.908 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 175.8 180.3 175.3 kozaiamp 180.0 179.8 179.9