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: 15VW165 # Created Sun Dec 22 02:10:33 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 49 observations of 49 # Arc: 16.14y # First observation: 2005/10/11 # Last observation: 2021/12/01 # Chi-squared of fit: 7.50 DOF: 92 RMS: 0.07 # Min/Max residuals: -0.27 0.14 # Exact a, adot, b, bdot, g, gdot: 1.757743E-05 3.758598E-02 8.137278E-07 2.001197E-03 3.359522E-02 -1.563022E-03 # Covariance matrix: 2.4352E-13 -3.5593E-14 3.0465E-15 -1.0766E-15 -1.5707E-14 -2.9232E-14 -3.5593E-14 9.0466E-15 -1.1856E-15 4.2341E-16 2.7183E-15 1.1392E-14 3.0465E-15 -1.1856E-15 1.8879E-13 -1.5428E-14 3.8162E-16 -1.8755E-15 -1.0766E-15 4.2341E-16 -1.5428E-14 1.4624E-15 -2.2217E-16 6.8052E-16 -1.5707E-14 2.7183E-15 3.8162E-16 -2.2217E-16 6.5280E-14 -3.9716E-15 -2.9232E-14 1.1392E-14 -1.8755E-15 6.8052E-16 -3.9716E-15 1.8059E-14 # lat0 lon0 xBary yBary zBary JD0 -4.104789 26.626902 0.148469 -0.070868 -0.989028 2453654.892306 # Heliocentric elements and errors Epoch: 2453654.5000 = 2005/10/11 Mean Anomaly: 244.62200 +/- 0.024 Argument of Peri: 68.04978 +/- 0.021 Long of Asc Node: 78.87743 +/- 0.000 Inclination: 5.00142 +/- 0.000 Eccentricity: 0.05277220 +/- 0.0000 Semi-Major Axis: 30.00671468 +/- 0.0009 Time of Perihelion: 2472896.3400 +/- 4.3 Perihelion: 28.42319444 +/- 0.0009 Aphelion: 31.59023492 +/- 0.0010 Period (y) 164.3750 +/- 0.01 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 27.48963845 +/- 0.0002 Ecliptic Y 13.61679614 +/- 0.0001 Ecliptic Z -2.13065264 +/- 0.0000 Ecliptic XDOT -0.00147385 +/- 0.0000 Ecliptic YDOT 0.00267998 +/- 0.0000 Ecliptic ZDOT 0.00017180 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 30.75123644 +/- 0.0002 Geocenter to KBO 29.76619359 +/- 0.0002 # Hcoef: 8.13
The following table shows the complete astrometric record for 15VW165. 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 (15VW165) followed by the observatory code and reference code for the source of the astrometry.
2005 10 11.391563 01 44 46.36 +06 26 20.1 15VW165 645 C~2lVc 2005 10 11.392392 01 44 46.35 +06 26 20.0 15VW165 645 C~2lVc 2005 10 11.394880 01 44 46.34 +06 26 19.8 15VW165 645 C~2lVc 2005 10 12.384590 01 44 40.31 +06 25 45.6 15VW165 645 C~2lVc 2005 10 12.385419 01 44 40.30 +06 25 45.5 15VW165 645 C~2lVc 2005 10 12.387907 01 44 40.28 +06 25 45.4 15VW165 645 C~2lVc 2015 08 11.63062 03 09 45.936 +14 58 42.42 23.3w 15VW165 568 C~2lVc 2015 08 12.57765 03 09 47.313 +14 58 44.35 23.3w 15VW165 568 C~2lVc 2015 09 07.53691 03 09 39.447 +14 56 35.88 23.3w 15VW165 568 C~2lVc 2015 09 12.53366 03 09 28.106 +14 55 33.25 23.2w 15VW165 568 C~2lVc 2015 10 08.48165 03 07 44.449 +14 47 27.56 23.2w 15VW165 568 C~2lVc 2015 10 08.53987 03 07 44.137 +14 47 26.20 23.1w 15VW165 568 C~2lVc 2015 10 08.55151 03 07 44.069 +14 47 25.83 23.1w 15VW165 568 C~2lVc 2015 10 08.56473 03 07 44.001 +14 47 25.56 23.1w 15VW165 568 C~2lVc 2015 11 06.29678 03 04 48.010 +14 35 14.86 22.8r 15VW165 568 C~2lVc 2015 11 06.36009 03 04 47.578 +14 35 13.24 22.8r 15VW165 568 C~2lVc 2015 11 06.43072 03 04 47.103 +14 35 11.36 22.8r 15VW165 568 C~2lVc 2015 11 06.50005 03 04 46.633 +14 35 09.55 22.8r 15VW165 568 C~2lVc 2015 11 17.29127 03 03 34.476 +14 30 28.72 22.9w 15VW165 568 C~2lVc 2015 11 17.34053 03 03 34.139 +14 30 27.59 23.0w 15VW165 568 C~2lVc 2016 09 06.59240 03 18 14.860 +15 41 03.18 15VW165 568 C~2lVc 2016 09 26.58845 03 17 16.936 +15 36 24.61 23.1w 15VW165 568 C~2lVc 2016 09 26.59251 03 17 16.915 +15 36 24.51 23.1w 15VW165 568 C~2lVc 2016 10 10.39070 03 16 11.806 +15 31 47.24 23.3w 15VW165 568 C~2lVc 2016 10 10.39652 03 16 11.777 +15 31 47.02 23.2w 15VW165 568 C~2lVc 2016 10 10.44903 03 16 11.482 +15 31 45.91 23.2w 15VW165 568 C~2lVc 2016 10 10.45485 03 16 11.453 +15 31 45.79 23.3w 15VW165 568 C~2lVc 2016 10 27.50838 03 14 30.240 +15 25 00.41 23.1w 15VW165 568 C~2lVc 2016 11 03.53341 03 13 44.258 +15 22 03.10 23.1w 15VW165 568 C~2lVc 2016 12 28.38265 03 08 15.708 +15 03 16.75 23.6w 15VW165 568 C~2lVc 2016 12 28.40571 03 08 15.614 +15 03 16.54 23.6w 15VW165 568 C~2lVc 2016 12 29.34821 03 08 11.802 +15 03 06.50 23.2w 15VW165 568 C~2lVc 2016 12 29.36323 03 08 11.752 +15 03 06.33 23.1w 15VW165 568 C~2lVc 2017 01 01.24491 03 08 00.745 +15 02 38.43 22.8w 15VW165 568 C~2lVc 2017 01 01.26044 03 08 00.687 +15 02 38.26 22.8w 15VW165 568 C~2lVc 2017 01 02.35523 03 07 56.741 +15 02 28.70 23.2w 15VW165 568 C~2lVc 2017 01 02.37026 03 07 56.687 +15 02 28.62 23.2w 15VW165 568 C~2lVc 2017 01 26.25843 03 07 08.094 +15 01 45.27 23.0w 15VW165 568 C~2lVc 2017 09 15.57624 03 26 37.390 +16 22 50.56 23.2w 15VW165 568 C~2lVc 2017 09 21.62152 03 26 19.901 +16 21 31.67 23.2w 15VW165 568 C~2lVc 2017 12 16.35462 03 17 56.866 +15 51 17.11 23.1w 15VW165 568 C~2lVc 2021 01 11.155460 03 42 36.248 +17 54 37.93 23.1G 15VW165 G37 C~4UIf 2021 01 11.214990 03 42 36.021 +17 54 37.48 15VW165 G37 C~4UIf 2021 01 11.255460 03 42 35.877 +17 54 36.97 15VW165 G37 C~4UIf 2021 12 01.25270 03 55 37.671 +18 44 21.40 15VW165 304 C~5S8H 2021 12 01.25503 03 55 37.643 +18 44 21.28 15VW165 304 C~5S8H 2021 12 01.25736 03 55 37.629 +18 44 21.48 15VW165 304 C~5S8H 2021 12 01.25958 03 55 37.619 +18 44 21.39 15VW165 304 C~5S8H 2021 12 01.26171 03 55 37.603 +18 44 21.40 15VW165 304 C~5S8H
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 0.01 0.00 0.03
2 0.0000 0.00 -0.06 0.00 -0.04
3 0.0000 0.00 0.02 0.00 -0.15
4 0.0027 0.00 0.12 0.00 0.05
5 0.0027 0.00 0.04 0.00 -0.02
6 0.0027 0.00 -0.02 0.00 -0.03
7 9.8323 0.00 0.05 0.00 0.01
8 9.8349 0.00 0.10 0.00 0.05
9 9.9059 0.00 -0.11 0.00 0.09
10 9.9196 0.00 -0.04 0.00 0.03
11 9.9907 0.00 -0.03 0.00 0.09
12 9.9908 0.00 -0.02 0.00 0.07
13 9.9909 0.00 -0.10 0.00 -0.03
14 9.9909 0.00 -0.05 0.00 0.00
15 10.0696 0.00 0.12 0.00 0.02
16 10.0697 0.00 0.06 0.00 0.06
17 10.0699 0.00 0.13 0.00 0.04
18 10.0701 0.00 0.14 0.00 0.07
19 10.0997 0.00 0.09 0.00 -0.07
20 10.0998 0.00 0.03 0.00 0.04
21 10.9054 0.00 -0.02 0.00 -0.00
22 10.9602 0.00 0.01 0.00 -0.05
23 10.9602 0.00 -0.05 0.00 -0.07
24 10.9979 0.00 0.03 0.00 0.05
25 10.9980 0.00 0.07 0.00 -0.04
26 10.9981 0.00 -0.06 0.00 -0.01
27 10.9981 0.00 -0.02 0.00 -0.00
28 11.0448 0.00 -0.04 0.00 0.01
29 11.0640 0.00 0.03 0.00 0.02
30 11.2142 0.00 -0.06 0.00 -0.02
31 11.2143 0.00 -0.03 0.00 0.03
32 11.2169 0.00 -0.19 0.00 0.04
33 11.2169 0.00 -0.02 0.00 0.03
34 11.2248 0.00 -0.04 0.00 0.08
35 11.2248 0.00 -0.03 0.00 0.05
36 11.2278 0.00 -0.01 0.00 -0.01
37 11.2279 0.00 -0.00 0.00 0.04
38 11.2933 0.00 0.02 0.00 0.01
39 11.9293 0.00 -0.04 0.00 0.06
40 11.9459 0.00 -0.05 0.00 -0.08
41 12.1806 0.00 0.01 0.00 0.00
42 15.2519 0.00 0.12 0.00 -0.02
43 15.2521 0.00 0.02 0.00 -0.05
44 15.2522 0.00 0.10 0.00 -0.27
45 16.1393 0.00 0.08 0.00 -0.08
46 16.1393 0.00 -0.09 0.00 -0.16
47 16.1393 0.00 -0.05 0.00 0.09
48 16.1393 0.00 0.03 0.00 0.04
49 16.1393 0.00 0.02 0.00 0.09
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.
15VW165 quality flag:3 Type: 1:1 1:1 1:1 axisobj 30.317 30.317 30.317 ecceobj 0.048 0.048 0.048 incobj 4.993 4.993 4.993 qmin 27.758 27.758 27.758 qmax 32.625 32.625 32.626 amean 30.110 30.110 30.110 amin 29.807 29.804 29.803 amax 30.451 30.451 30.451 emean 0.048 0.047 0.048 emin 0.023 0.023 0.023 emax 0.072 0.072 0.072 imean 3.497 3.497 3.497 imin 3.288 3.288 3.292 imax 3.772 3.772 3.772 excite_mean 0.078 0.078 0.078 fracstop 1.000 1.000 1.000 cjmean 2.993 2.993 2.993 libcent 0 64.7 64.6 64.4 libamp 0 24.9 24.6 24.5 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 179.1 179.1 179.0 kozaiamp 180.0 179.9 179.8