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: 04VU131 # Created Wed Dec 25 02:08:42 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 44 observations of 44 # Arc: 13.09y # First observation: 2004/11/09 # Last observation: 2017/12/13 # Chi-squared of fit: 20.74 DOF: 82 RMS: 0.12 # Min/Max residuals: -0.40 0.48 # Exact a, adot, b, bdot, g, gdot: 1.659208E-05 2.551858E-02 2.933652E-07 -3.372938E-04 2.487806E-02 1.714002E-04 # Covariance matrix: 2.3063E-13 -8.2125E-14 -7.6931E-16 8.8666E-16 -5.8422E-14 -2.0332E-13 -8.2125E-14 7.5968E-14 8.4938E-16 -9.7850E-16 5.4247E-14 2.2468E-13 -7.6931E-16 8.4938E-16 1.6895E-13 -1.4813E-14 6.2256E-16 2.5666E-15 8.8666E-16 -9.7850E-16 -1.4813E-14 1.6282E-15 -7.2244E-16 -2.9567E-15 -5.8422E-14 5.4247E-14 6.2256E-16 -7.2244E-16 1.5837E-13 1.6234E-13 -2.0332E-13 2.2468E-13 2.5666E-15 -2.9567E-15 1.6234E-13 6.7896E-13 # lat0 lon0 xBary yBary zBary JD0 -0.136304 37.388938 -0.166373 -0.002225 -0.978795 2453318.875253 # Heliocentric elements and errors Epoch: 2453318.5000 = 2004/11/09 Mean Anomaly: 4.93527 +/- 0.018 Argument of Peri: 183.98944 +/- 0.022 Long of Asc Node: 207.65071 +/- 0.003 Inclination: 0.76813 +/- 0.000 Eccentricity: 0.09407930 +/- 0.0000 Semi-Major Axis: 45.42664038 +/- 0.0029 Time of Perihelion: 2451785.3916 +/- 5.5 Perihelion: 41.15293385 +/- 0.0033 Aphelion: 49.70034691 +/- 0.0038 Period (y) 306.1781 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 32.60896465 +/- 0.0005 Ecliptic Y 25.13562650 +/- 0.0004 Ecliptic Z -0.09561695 +/- 0.0000 Ecliptic XDOT -0.00169154 +/- 0.0000 Ecliptic YDOT 0.00223553 +/- 0.0000 Ecliptic ZDOT -0.00003707 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.17223529 +/- 0.0005 Geocenter to KBO 40.19610042 +/- 0.0006 # Hcoef: 7.36
The following table shows the complete astrometric record for 04VU131. 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 (04VU131) followed by the observatory code and reference code for the source of the astrometry.
2004 11 09.37451 02 20 20.01 +13 50 54.7 23.7g 04VU131 568 C~2obZ 2004 11 09.40092 02 20 19.89 +13 50 54.1 23.7g 04VU131 568 C~2obZ 2004 11 09.42696 02 20 19.77 +13 50 53.3 23.8g 04VU131 568 C~2obZ 2004 11 10.28884 02 20 15.69 +13 50 32.7 23.8g 04VU131 568 C~2obZ 2005 10 25.49229 02 27 16.45 +14 24 05.0 23.3r 04VU131 568 C~2obZ 2005 10 25.53041 02 27 16.28 +14 24 04.2 23.3r 04VU131 568 C~2obZ 2005 10 25.56395 02 27 16.11 +14 24 03.4 23.4r 04VU131 568 C~2obZ 2006 10 23.23208 02 33 13.14 +14 51 32.8 04VU131 675 C~2obZ 2006 10 23.27265 02 33 12.96 +14 51 31.7 04VU131 675 C~2obZ 2006 10 23.31197 02 33 12.75 +14 51 31.3 04VU131 675 C~2obZ 2006 11 25.20987 02 30 35.99 +14 38 54.5 04VU131 695 C~2obZ 2006 11 25.30049 02 30 35.58 +14 38 52.8 04VU131 695 C~2obZ 2015 08 20.54457 03 28 10.909 +18 32 04.07 23.8w 04VU131 568 C~2obZ 2015 08 20.55007 03 28 10.908 +18 32 04.04 23.9w 04VU131 568 C~2obZ 2015 09 07.60044 03 28 06.246 +18 31 35.41 24.0w 04VU131 568 C~2obZ 2015 10 07.49766 03 26 53.214 +18 26 54.53 23.8w 04VU131 568 C~2obZ 2015 10 07.55607 03 26 52.998 +18 26 53.75 23.8w 04VU131 568 C~2obZ 2015 10 09.53675 03 26 45.677 +18 26 26.29 23.8w 04VU131 568 C~2obZ 2015 11 06.31257 03 24 41.457 +18 18 42.86 23.4r 04VU131 568 C~2obZ 2015 11 06.37589 03 24 41.148 +18 18 41.77 23.5r 04VU131 568 C~2obZ 2015 11 06.44667 03 24 40.783 +18 18 40.53 23.6r 04VU131 568 C~2obZ 2015 11 07.46686 03 24 35.701 +18 18 21.55 23.9w 04VU131 568 C~2obZ 2015 11 17.44798 03 23 45.386 +18 15 14.45 23.6w 04VU131 568 C~2obZ 2015 11 17.49527 03 23 45.144 +18 15 13.57 23.7w 04VU131 568 C~2obZ 2015 12 06.31417 03 22 12.668 +18 09 29.47 23.7w 04VU131 568 C~2oba 2015 12 06.44064 03 22 12.068 +18 09 27.18 23.3w 04VU131 568 C~2oba 2015 12 06.44787 03 22 12.008 +18 09 27.21 23.5w 04VU131 568 C~2oba 2015 12 31.33561 03 20 32.699 +18 03 18.58 23.8w 04VU131 568 C~2oba 2016 02 11.26421 03 19 40.131 +18 00 13.23 24.0w 04VU131 568 C~2oba 2016 09 27.53935 03 33 15.657 +18 48 32.29 23.9w 04VU131 568 C~2oba 2016 10 09.53365 03 32 36.025 +18 46 07.74 23.9w 04VU131 568 C~2oba 2016 10 09.60571 03 32 35.751 +18 46 06.69 23.9w 04VU131 568 C~2oba 2016 10 28.47058 03 31 15.108 +18 41 15.91 23.8w 04VU131 568 C~2oba 2016 10 28.49380 03 31 14.994 +18 41 15.43 23.8w 04VU131 568 C~2oba 2016 10 29.53251 03 31 10.066 +18 40 57.76 23.8w 04VU131 568 C~2oba 2016 11 02.58549 03 30 50.492 +18 39 47.47 23.6w 04VU131 568 C~2oba 2016 11 04.45547 03 30 41.324 +18 39 14.49 23.7w 04VU131 568 C~2oba 2016 12 24.34518 03 26 45.624 +18 25 09.17 23.9w 04VU131 568 C~2oba 2016 12 24.36175 03 26 45.567 +18 25 09.03 23.8w 04VU131 568 C~2oba 2017 01 27.31949 03 25 25.919 +18 20 29.11 23.6w 04VU131 568 C~2oba 2017 09 15.55809 03 39 35.021 +19 09 08.31 23.6w 04VU131 568 C~2oba 2017 09 20.60688 03 39 25.455 +19 08 33.13 23.9w 04VU131 568 C~2oba 2017 12 13.36234 03 33 24.977 +18 47 40.13 23.7w 04VU131 568 C~2oba 2017 12 13.40466 03 33 24.790 +18 47 39.46 23.7w 04VU131 568 C~2oba
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 -0.04 0.00 -0.12
2 0.0001 0.00 0.08 0.00 -0.09
3 0.0001 0.00 0.17 0.00 -0.27
4 0.0025 0.00 0.11 0.00 -0.22
5 0.9586 0.00 -0.40 0.00 0.01
6 0.9587 0.00 -0.15 0.00 0.12
7 0.9588 0.00 -0.24 0.00 0.12
8 1.9517 0.00 0.20 0.00 0.16
9 1.9518 0.00 0.45 0.00 -0.02
10 1.9519 0.00 0.16 0.00 0.48
11 2.0420 0.00 -0.05 0.00 -0.11
12 2.0422 0.00 -0.09 0.00 0.13
13 10.7766 0.00 0.03 0.00 -0.01
14 10.7767 0.00 -0.03 0.00 -0.05
15 10.8261 0.00 -0.10 0.00 -0.02
16 10.9079 0.00 -0.03 0.00 -0.07
17 10.9081 0.00 -0.02 0.00 -0.05
18 10.9135 0.00 -0.02 0.00 -0.02
19 10.9896 0.00 -0.05 0.00 -0.06
20 10.9897 0.00 0.10 0.00 0.00
21 10.9899 0.00 -0.00 0.00 0.07
22 10.9927 0.00 -0.00 0.00 -0.02
23 11.0201 0.00 -0.08 0.00 0.00
24 11.0202 0.00 -0.06 0.00 0.02
25 11.0717 0.00 0.07 0.00 -0.03
26 11.0720 0.00 0.08 0.00 -0.12
27 11.0721 0.00 -0.31 0.00 0.03
28 11.1402 0.00 -0.02 0.00 0.01
29 11.2550 0.00 0.01 0.00 0.01
30 11.8827 0.00 -0.04 0.00 -0.01
31 11.9156 0.00 -0.04 0.00 0.02
32 11.9158 0.00 -0.01 0.00 -0.05
33 11.9674 0.00 0.08 0.00 0.05
34 11.9675 0.00 0.05 0.00 -0.04
35 11.9703 0.00 0.08 0.00 0.00
36 11.9814 0.00 -0.03 0.00 0.00
37 11.9865 0.00 0.06 0.00 -0.01
38 12.1231 0.00 -0.03 0.00 -0.04
39 12.1232 0.00 0.06 0.00 0.04
40 12.2161 0.00 0.07 0.00 0.03
41 12.8492 0.00 0.07 0.00 0.05
42 12.8631 0.00 0.03 0.00 0.03
43 13.0924 0.00 0.03 0.00 0.07
44 13.0925 0.00 0.13 0.00 0.06
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.
04VU131 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 46.014 46.014 46.014 ecceobj 0.106 0.106 0.106 incobj 0.764 0.764 0.764 qmin 40.238 40.238 40.238 qmax 51.248 51.248 51.249 amean 45.616 45.616 45.616 amin 45.249 45.249 45.249 amax 46.030 46.031 46.031 emean 0.101 0.101 0.101 emin 0.088 0.088 0.088 emax 0.114 0.114 0.114 imean 2.181 2.181 2.181 imin 1.638 1.638 1.638 imax 2.613 2.613 2.613 excite_mean 0.108 0.108 0.108 fracstop 1.000 1.000 1.000 cjmean 3.107 3.107 3.107 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 197.7 197.6 197.7 kozaiamp 179.9 179.9 179.9