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: 538691 # Created Wed Dec 25 02:07:28 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 93 observations of 93 # Arc: 10.97y # First observation: 2011/03/15 # Last observation: 2022/03/02 # Chi-squared of fit: 104.26 DOF: 180 RMS: 0.19 # Min/Max residuals: -0.59 0.48 # Exact a, adot, b, bdot, g, gdot: 1.392195E-05 2.020555E-02 5.220792E-07 -8.044254E-04 2.236844E-02 -8.592729E-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 -6.001401 178.982872 0.081234 -0.104075 -0.989730 2455635.908966 # Heliocentric elements and errors Epoch: 2455636.5000 = 2011/03/16 Mean Anomaly: 219.98251 +/- 0.000 Argument of Peri: 33.75907 +/- 0.000 Long of Asc Node: 290.20033 +/- 0.000 Inclination: 6.29934 +/- 0.000 Eccentricity: 0.07182551 +/- 0.0000 Semi-Major Axis: 43.22768260 +/- 0.0000 Time of Perihelion: 2496012.3014 +/- 0.0 Perihelion: 40.12283237 +/- 0.0000 Aphelion: 46.33253283 +/- 0.0000 Period (y) 284.2177 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -45.44333913 +/- 0.0000 Ecliptic Y 0.88723896 +/- 0.0000 Ecliptic Z -4.67408758 +/- 0.0000 Ecliptic XDOT 0.00006950 +/- 0.0000 Ecliptic YDOT -0.00246875 +/- 0.0000 Ecliptic ZDOT -0.00008690 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.69172686 +/- 0.0000 Geocenter to KBO 44.70591451 +/- 0.0000 # Hcoef: 6.04
The following table shows the complete astrometric record for 538691. 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 (538691) followed by the observatory code and reference code for the source of the astrometry.
2011 03 15.40820 11 46 41.779 -05 06 01.79 22.1G 538691 F51 C~2rYQ 2011 03 31.36048 11 45 35.265 -04 58 50.49 22.6G 538691 F51 C~2rYQ 2011 03 31.37603 11 45 35.192 -04 58 49.99 22.6G 538691 F51 C~2rYQ 2011 03 31.39258 11 45 35.135 -04 58 49.55 22.5G 538691 F51 C~2rYQ 2011 03 31.40811 11 45 35.051 -04 58 49.16 22.9G 538691 F51 C~2rYQ 2011 05 19.27149 11 43 06.696 -04 39 07.97 21.5G 538691 F51 C~2rYQ 2012 02 28.50090 11 51 55.338 -05 42 16.25 22.9G 538691 F51 C~2rYQ 2012 03 02.45886 11 51 43.523 -05 41 10.53 23.2G 538691 F51 C~2rYQ 2012 03 20.36745 11 50 29.002 -05 33 41.90 23.0G 538691 F51 C~2rYQ 2012 03 20.38208 11 50 28.932 -05 33 42.37 23.5G 538691 F51 C~2rYQ 2012 03 20.39671 11 50 28.857 -05 33 41.65 22.3G 538691 F51 C~2rYQ 2012 03 20.41132 11 50 28.802 -05 33 40.76 23.0G 538691 F51 C~2rYQ 2013 03 06.43616 11 55 40.688 -06 09 50.50 22.5G 538691 F51 C~2rYR 2013 04 05.33533 11 53 36.323 -05 56 41.35 21.0G 538691 F51 C~2rYR 2013 12 10.63442 12 02 16.275 -06 44 19.31 23.0G 538691 F51 C~2rYR 2014 01 04.64721 12 02 31.657 -06 49 52.11 22.6G 538691 F51 C~2rYR 2014 02 26.50719 12 00 26.704 -06 42 54.50 22.5w 538691 F51 C~1va8 2014 02 26.53193 12 00 26.613 -06 42 53.84 22.9w 538691 F51 C~1va8 2014 02 26.54430 12 00 26.561 -06 42 53.53 22.8w 538691 F51 C~1va8 2014 02 28.45652 12 00 19.162 -06 42 13.55 22.7w 538691 F51 C~1va8 2014 02 28.46858 12 00 19.110 -06 42 13.32 22.4w 538691 F51 C~1va8 2014 02 28.48066 12 00 19.059 -06 42 13.22 22.6w 538691 F51 C~1va8 2014 02 28.49275 12 00 19.007 -06 42 12.87 22.7w 538691 F51 C~1va8 2014 03 06.45205 11 59 55.228 -06 40 00.54 22.3w 538691 F51 C~1w4v 2014 03 06.46397 11 59 55.162 -06 40 00.20 22.5w 538691 F51 C~1w4v 2014 04 28.33414 11 56 26.996 -06 16 37.63 22.0G 538691 F51 C~2rYR 2014 04 29.33505 11 56 23.884 -06 16 12.33 22.5G 538691 F51 C~2rYR 2014 05 04.30633 11 56 09.300 -06 14 11.46 22.2G 538691 F51 C~2rYR 2014 05 24.27203 11 55 26.416 -06 07 21.05 22.8w 538691 F51 C~1va8 2014 05 24.28532 11 55 26.376 -06 07 20.62 22.7w 538691 F51 C~1va8 2014 05 24.29860 11 55 26.376 -06 07 20.52 22.4w 538691 F51 C~1va8 2014 05 24.31185 11 55 26.353 -06 07 20.40 22.6w 538691 F51 C~1va8 2015 01 23.53453 12 06 21.858 -07 19 52.74 22.8w 538691 F51 C~1va8 2015 01 23.54987 12 06 21.839 -07 19 52.94 22.5w 538691 F51 C~1va8 2015 01 23.56526 12 06 21.805 -07 19 52.80 22.6w 538691 F51 C~1va8 2015 01 23.58067 12 06 21.760 -07 19 52.66 22.6w 538691 F51 C~1va8 2015 01 25.57287 12 06 17.949 -07 19 44.65 22.4G 538691 F51 C~2rYR 2015 02 15.55483 12 05 21.416 -07 16 12.46 22.5G 538691 F51 C~2rYR 2015 02 16.49975 12 05 18.280 -07 15 57.93 22.4w 538691 F51 C~1va8 2015 02 16.51247 12 05 18.220 -07 15 57.47 22.5w 538691 F51 C~1va8 2015 02 16.52515 12 05 18.187 -07 15 57.43 22.3w 538691 F51 C~1va8 2015 02 16.53783 12 05 18.144 -07 15 57.29 22.6w 538691 F51 C~1va8 2015 02 27.54039 12 04 38.342 -07 12 37.48 22.2w 538691 F51 C~1va8 2015 02 27.55293 12 04 38.305 -07 12 37.05 22.4w 538691 F51 C~1va8 2015 02 27.56546 12 04 38.254 -07 12 37.03 22.8w 538691 F51 C~1va8 2015 02 27.57799 12 04 38.199 -07 12 36.81 22.5w 538691 F51 C~1va8 2015 03 30.41644 12 02 30.930 -06 59 55.10 22.3G 538691 F51 C~2rYR 2016 01 18.60531 12 10 43.622 -07 49 34.53 21.6G 538691 F51 C~2rYR 2016 02 03.56584 12 10 12.376 -07 48 26.51 23.0G 538691 F51 C~2rYR 2016 02 10.52266 12 09 53.226 -07 47 13.89 22.6G 538691 F51 C~2rYR 2016 02 18.60618 12 09 27.372 -07 45 19.33 22.7G 538691 F51 C~2rYR 2016 03 01.47747 12 08 43.913 -07 41 38.72 22.1G 538691 F51 C~2rYR 2016 03 02.46729 12 08 40.035 -07 41 17.82 21.7G 538691 F51 C~2rYR 2016 03 10.40604 12 08 08.052 -07 38 18.58 22.5G 538691 F51 C~2rYR 2016 03 10.41832 12 08 07.996 -07 38 18.36 22.9G 538691 F51 C~2rYR 2016 03 10.43055 12 08 07.951 -07 38 18.00 22.4G 538691 F51 C~2rYR 2016 03 10.44277 12 08 07.902 -07 38 17.83 22.6G 538691 F51 C~2rYR 2016 03 11.47555 12 08 03.624 -07 37 52.83 22.6G 538691 F51 C~2rYR 2016 03 11.50182 12 08 03.506 -07 37 52.35 22.6G 538691 F51 C~2rYR 2016 03 13.43972 12 07 55.477 -07 37 05.05 22.0G 538691 F51 C~2rYR 2016 03 13.45480 12 07 55.409 -07 37 04.83 22.2G 538691 F51 C~2rYR 2016 03 13.46983 12 07 55.331 -07 37 04.43 22.4G 538691 F51 C~2rYR 2016 03 29.22896 12 06 48.86 -07 30 10.8 23.4V 538691 W84 C~1qoK 2016 03 29.23590 12 06 48.87 -07 30 10.9 538691 W84 C~1qoK 2016 03 29.24284 12 06 48.87 -07 30 11.0 538691 W84 C~1qoK 2016 03 30.25362 12 06 44.56 -07 29 42.7 538691 W84 C~1qoK 2016 03 30.26056 12 06 44.55 -07 29 42.7 538691 W84 C~1qoK 2016 03 30.26750 12 06 44.56 -07 29 42.7 538691 W84 C~1qoK 2016 03 31.21393 12 06 40.56 -07 29 16.3 538691 W84 C~1qoK 2016 03 31.22087 12 06 40.56 -07 29 16.4 538691 W84 C~1qoK 2016 03 31.22781 12 06 40.56 -07 29 16.3 538691 W84 C~1qoK 2016 04 01.36426 12 06 35.793 -07 28 45.16 22.3G 538691 F51 C~2rYR 2016 04 01.37656 12 06 35.743 -07 28 44.65 22.6G 538691 F51 C~2rYR 2016 04 01.38887 12 06 35.698 -07 28 44.50 22.3G 538691 F51 C~2rYR 2016 04 01.40120 12 06 35.646 -07 28 44.03 22.4G 538691 F51 C~2rYR 2016 04 02.36674 12 06 31.631 -07 28 17.32 23.1G 538691 F51 C~2rYR 2016 04 02.37840 12 06 31.565 -07 28 17.09 22.9G 538691 F51 C~2rYR 2016 04 02.39008 12 06 31.533 -07 28 16.61 22.8G 538691 F51 C~2rYR 2016 04 02.40178 12 06 31.497 -07 28 16.41 23.2G 538691 F51 C~2rYR 2017 01 28.59681 12 14 39.913 -08 18 38.13 22.4G 538691 F51 C~2rYR 2017 01 28.60842 12 14 39.886 -08 18 38.32 22.2G 538691 F51 C~2rYR 2017 01 28.62004 12 14 39.864 -08 18 38.39 22.4G 538691 F51 C~2rYR 2017 01 28.63164 12 14 39.835 -08 18 38.00 23.0G 538691 F51 C~2rYR 2017 03 19.39447 12 11 48.928 -08 04 39.14 22.3G 538691 F51 C~2rYR 2017 03 19.40654 12 11 48.875 -08 04 39.33 21.9G 538691 F51 C~2rYR 2017 04 20.32857 12 09 38.766 -07 50 06.47 22.8G 538691 F51 C~2rYR 2017 04 20.34099 12 09 38.734 -07 50 06.16 22.5G 538691 F51 C~2rYR 2017 04 20.35340 12 09 38.673 -07 50 05.86 22.5G 538691 F51 C~2rYR 2018 02 11.57128 12 18 22.064 -08 46 12.74 22.9G 538691 F51 C~2rYR 2018 03 11.42904 12 16 41.610 -08 37 51.27 22.7G 538691 F51 C~2rYR 2022 03 02.406140 12 34 39.292 -10 38 36.22 22.5G 538691 G37 C~5V3p 2022 03 02.446910 12 34 39.135 -10 38 35.79 538691 G37 C~5V3p 2022 03 02.487080 12 34 38.981 -10 38 34.87 538691 G37 C~5V3p
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 -0.02 0.00 -0.24
2 0.0437 0.00 0.06 0.00 0.04
3 0.0437 0.00 -0.07 0.00 0.11
4 0.0438 0.00 0.11 0.00 0.09
5 0.0438 0.00 -0.19 0.00 0.05
6 0.1776 0.00 -0.28 0.00 -0.45
7 0.9585 0.00 0.08 0.00 0.14
8 0.9666 0.00 0.01 0.00 -0.11
9 1.0156 0.00 0.17 0.00 0.27
10 1.0157 0.00 0.06 0.00 -0.59
11 1.0157 0.00 -0.12 0.00 -0.26
12 1.0158 0.00 -0.01 0.00 0.24
13 1.9768 0.00 0.02 0.00 -0.16
14 2.0587 0.00 -0.46 0.00 -0.16
15 2.7412 0.00 -0.36 0.00 0.11
16 2.8097 0.00 -0.03 0.00 -0.03
17 2.9544 0.00 -0.02 0.00 -0.20
18 2.9545 0.00 0.07 0.00 -0.05
19 2.9545 0.00 0.02 0.00 0.01
20 2.9597 0.00 0.12 0.00 0.09
21 2.9598 0.00 0.06 0.00 0.07
22 2.9598 0.00 0.02 0.00 -0.09
23 2.9598 0.00 -0.04 0.00 0.01
24 2.9762 0.00 0.13 0.00 -0.09
25 2.9762 0.00 -0.11 0.00 -0.03
26 3.1209 0.00 -0.24 0.00 -0.18
27 3.1237 0.00 -0.25 0.00 -0.03
28 3.1373 0.00 0.28 0.00 -0.47
29 3.1920 0.00 0.25 0.00 0.13
30 3.1920 0.00 -0.05 0.00 0.34
31 3.1920 0.00 0.26 0.00 0.21
32 3.1921 0.00 0.21 0.00 0.11
33 3.8607 0.00 -0.07 0.00 0.24
34 3.8608 0.00 0.08 0.00 -0.01
35 3.8608 0.00 0.02 0.00 0.08
36 3.8608 0.00 -0.21 0.00 0.16
37 3.8663 0.00 0.06 0.00 0.16
38 3.9237 0.00 -0.01 0.00 0.11
39 3.9263 0.00 0.26 0.00 -0.06
40 3.9264 0.00 0.01 0.00 0.20
41 3.9264 0.00 0.18 0.00 0.04
42 3.9264 0.00 0.19 0.00 -0.02
43 3.9566 0.00 -0.00 0.00 0.05
44 3.9566 0.00 0.18 0.00 0.22
45 3.9566 0.00 0.15 0.00 -0.01
46 3.9567 0.00 0.06 0.00 -0.05
47 4.0411 0.00 0.14 0.00 -0.06
48 4.8465 0.00 -0.06 0.00 0.43
49 4.8902 0.00 0.06 0.00 0.08
50 4.9093 0.00 0.11 0.00 -0.08
51 4.9314 0.00 -0.27 0.00 -0.25
52 4.9639 0.00 0.01 0.00 -0.07
53 4.9666 0.00 -0.18 0.00 -0.03
54 4.9884 0.00 -0.02 0.00 -0.00
55 4.9884 0.00 -0.09 0.00 -0.08
56 4.9884 0.00 0.01 0.00 -0.01
57 4.9885 0.00 0.04 0.00 -0.13
58 4.9913 0.00 -0.07 0.00 0.13
59 4.9914 0.00 -0.17 0.00 -0.02
60 4.9967 0.00 0.17 0.00 0.06
61 4.9967 0.00 0.11 0.00 -0.09
62 4.9967 0.00 -0.10 0.00 -0.06
63 5.0399 0.00 -0.56 0.00 0.37
64 5.0399 0.00 0.03 0.00 0.08
65 5.0399 0.00 0.48 0.00 -0.21
66 5.0427 0.00 -0.59 0.00 0.35
67 5.0427 0.00 -0.30 0.00 0.16
68 5.0427 0.00 0.29 0.00 -0.03
69 5.0453 0.00 -0.41 0.00 0.32
70 5.0453 0.00 0.03 0.00 0.03
71 5.0454 0.00 0.48 0.00 -0.07
72 5.0485 0.00 -0.10 0.00 -0.14
73 5.0485 0.00 -0.07 0.00 0.03
74 5.0485 0.00 0.03 0.00 -0.16
75 5.0486 0.00 0.04 0.00 -0.03
76 5.0512 0.00 -0.10 0.00 -0.05
77 5.0513 0.00 -0.36 0.00 -0.14
78 5.0513 0.00 -0.10 0.00 0.01
79 5.0513 0.00 0.10 0.00 -0.11
80 5.8759 0.00 0.10 0.00 0.21
81 5.8760 0.00 0.07 0.00 -0.04
82 5.8760 0.00 0.12 0.00 -0.17
83 5.8760 0.00 0.06 0.00 0.16
84 6.0123 0.00 0.11 0.00 0.14
85 6.0123 0.00 0.09 0.00 -0.36
86 6.0997 0.00 -0.01 0.00 0.07
87 6.0997 0.00 0.21 0.00 0.04
88 6.0998 0.00 -0.01 0.00 -0.00
89 6.9135 0.00 0.15 0.00 0.09
90 6.9898 0.00 -0.23 0.00 0.45
91 10.9651 0.00 -0.03 0.00 -0.08
92 10.9652 0.00 -0.08 0.00 -0.40
93 10.9653 0.00 -0.12 0.00 -0.21
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.
538691 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.222 43.222 43.222 ecceobj 0.072 0.072 0.072 incobj 6.295 6.295 6.295 qmin 39.417 39.477 39.479 qmax 47.552 47.626 47.639 amean 43.437 43.437 43.437 amin 43.096 43.095 43.096 amax 43.795 43.797 43.799 emean 0.071 0.071 0.071 emin 0.055 0.054 0.055 emax 0.088 0.088 0.088 imean 8.003 8.003 8.003 imin 7.270 7.268 7.271 imax 8.688 8.691 8.688 excite_mean 0.156 0.156 0.156 fracstop 1.000 1.000 1.000 cjmean 3.065 3.065 3.065 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 176.0 176.1 176.3 kozaiamp 180.0 180.0 180.0