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: 15VX165 # Created Fri Nov 22 02:10:32 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 29 observations of 29 # Arc: 5.31y # First observation: 2015/08/20 # Last observation: 2020/12/09 # Chi-squared of fit: 14.25 DOF: 52 RMS: 0.12 # Min/Max residuals: -0.54 0.55 # Exact a, adot, b, bdot, g, gdot: 1.660281E-05 3.149705E-02 -5.300212E-06 -9.635660E-03 3.099318E-02 1.085701E-03 # Covariance matrix: 2.2866E-13 -1.0882E-13 -1.2163E-14 3.5330E-14 1.1550E-13 -6.9124E-13 -1.0882E-13 2.7888E-13 4.1385E-14 -9.5341E-14 5.2637E-14 1.9366E-12 -1.2163E-14 4.1385E-14 8.5404E-14 -5.4264E-14 1.0319E-14 3.4920E-13 3.5330E-14 -9.5341E-14 -5.4264E-14 8.9598E-14 -1.6254E-14 -8.0930E-13 1.1550E-13 5.2637E-14 1.0319E-14 -1.6254E-14 1.4787E-13 3.5732E-13 -6.9124E-13 1.9366E-12 3.4920E-13 -8.0930E-13 3.5732E-13 1.6422E-11 # lat0 lon0 xBary yBary zBary JD0 -1.731468 54.155112 1.013220 -0.001465 -0.052845 2457255.056669 # Heliocentric elements and errors Epoch: 2457254.5000 = 2015/08/20 Mean Anomaly: 179.25810 +/- 0.087 Argument of Peri: 6.50521 +/- 0.086 Long of Asc Node: 226.75494 +/- 0.000 Inclination: 17.15528 +/- 0.000 Eccentricity: 0.07539005 +/- 0.0000 Semi-Major Axis: 30.06486298 +/- 0.0015 Time of Perihelion: 2427272.2956 +/- 14.7 Perihelion: 27.79827155 +/- 0.0019 Aphelion: 32.33145441 +/- 0.0021 Period (y) 164.8531 +/- 0.01 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 19.73392458 +/- 0.0002 Ecliptic Y 25.59167678 +/- 0.0003 Ecliptic Z -0.97504624 +/- 0.0000 Ecliptic XDOT -0.00221631 +/- 0.0000 Ecliptic YDOT 0.00167982 +/- 0.0000 Ecliptic ZDOT -0.00085364 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 32.33129109 +/- 0.0003 Geocenter to KBO 32.26516358 +/- 0.0004 # Hcoef: 8.92
The following table shows the complete astrometric record for 15VX165. 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 (15VX165) followed by the observatory code and reference code for the source of the astrometry.
2015 08 20.55588 03 28 55.038 +17 07 54.56 24.5w 15VX165 568 C~2lVc 2015 09 07.60452 03 28 51.079 +17 04 58.06 24.1w 15VX165 568 C~2lVc 2015 09 12.45550 03 28 43.246 +17 03 46.39 24.3w 15VX165 568 C~2lVc 2015 10 09.54258 03 27 11.525 +16 54 23.53 24.1w 15VX165 568 C~2lVc 2015 11 06.31779 03 24 35.305 +16 41 28.06 24.0r 15VX165 568 C~2lVc 2015 11 06.38117 03 24 34.905 +16 41 26.32 24.2r 15VX165 568 C~2lVc 2015 11 06.45191 03 24 34.449 +16 41 24.14 23.9r 15VX165 568 C~2lVc 2015 11 06.46851 03 24 34.361 +16 41 23.66 24.0r 15VX165 568 C~2lVc 2015 11 07.47269 03 24 28.042 +16 40 53.94 24.0w 15VX165 568 C~2lVc 2015 11 17.45383 03 23 24.624 +16 35 58.45 23.9w 15VX165 568 C~2lVc 2015 11 17.54213 03 23 24.051 +16 35 55.93 24.0w 15VX165 568 C~2lVc 2015 12 06.32006 03 21 27.923 +16 27 06.68 24.1w 15VX165 568 C~2lVc 2015 12 06.45375 03 21 27.125 +16 27 03.19 24.2w 15VX165 568 C~2lVc 2015 12 31.34139 03 19 23.113 +16 17 44.81 24.2w 15VX165 568 C~2lVc 2016 01 07.37652 03 18 58.139 +16 15 51.11 23.9w 15VX165 568 C~2lVc 2016 01 08.23883 03 18 55.466 +16 15 38.49 24.4w 15VX165 568 C~2lVc 2016 02 05.32968 03 18 16.899 +16 12 15.25 24.5w 15VX165 568 C~2lVc 2016 02 11.27580 03 18 21.605 +16 12 23.47 24.3w 15VX165 568 C~2lVc 2016 09 25.61718 03 36 06.241 +16 53 10.22 24.4w 15VX165 568 C~2lVc 2016 10 10.55675 03 35 06.170 +16 47 26.72 24.2w 15VX165 568 C~2lVc 2016 10 10.60523 03 35 05.937 +16 47 25.47 24.3w 15VX165 568 C~2lVc 2016 10 28.47637 03 33 29.939 +16 39 26.32 24.2w 15VX165 568 C~2lVc 2016 10 29.53828 03 33 23.631 +16 38 56.29 24.4w 15VX165 568 C~2lVc 2016 10 29.55586 03 33 23.524 +16 38 55.96 24.5w 15VX165 568 C~2lVc 2016 11 02.59127 03 32 59.081 +16 37 01.01 23.7w 15VX165 568 C~2lVc 2016 12 24.35153 03 27 50.593 +16 14 34.13 24.4w 15VX165 568 C~2lVc 2017 01 27.33320 03 26 11.342 +16 07 41.21 24.4w 15VX165 568 C~2lVc 2020 12 09.271640 04 01 20.182 +15 47 03.27 24.0G 15VX165 G37 C~4UIf 2020 12 09.314600 04 01 19.839 +15 47 02.50 15VX165 G37 C~4UIf
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 -0.13 0.00 0.05
2 0.0494 0.00 -0.03 0.00 0.11
3 0.0627 0.00 0.08 0.00 -0.00
4 0.1369 0.00 -0.05 0.00 -0.05
5 0.2129 0.00 -0.02 0.00 -0.07
6 0.2131 0.00 0.02 0.00 0.04
7 0.2133 0.00 -0.05 0.00 -0.05
8 0.2133 0.00 0.22 0.00 -0.04
9 0.2161 0.00 -0.00 0.00 -0.02
10 0.2434 0.00 0.02 0.00 -0.01
11 0.2436 0.00 0.01 0.00 0.09
12 0.2950 0.00 0.02 0.00 -0.07
13 0.2954 0.00 0.01 0.00 -0.02
14 0.3635 0.00 0.07 0.00 -0.06
15 0.3828 0.00 -0.07 0.00 0.15
16 0.3852 0.00 -0.02 0.00 -0.08
17 0.4621 0.00 -0.01 0.00 0.03
18 0.4784 0.00 -0.01 0.00 0.04
19 1.1008 0.00 -0.01 0.00 -0.04
20 1.1417 0.00 -0.03 0.00 -0.03
21 1.1418 0.00 -0.02 0.00 -0.05
22 1.1907 0.00 -0.15 0.00 -0.00
23 1.1937 0.00 0.06 0.00 -0.05
24 1.1937 0.00 0.06 0.00 0.12
25 1.2048 0.00 0.23 0.00 -0.01
26 1.3465 0.00 -0.06 0.00 -0.02
27 1.4395 0.00 -0.02 0.00 0.06
28 5.3052 0.00 0.55 0.00 -0.06
29 5.3053 0.00 -0.54 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.
15VX165 quality flag:3 Type: 1:1 1:1 1:1 axisobj 30.276 30.276 30.276 ecceobj 0.069 0.069 0.069 incobj 17.090 17.090 17.090 qmin 27.017 27.017 27.018 qmax 33.303 33.303 33.303 amean 30.110 30.110 30.110 amin 29.837 29.837 29.837 amax 30.424 30.424 30.424 emean 0.076 0.076 0.076 emin 0.054 0.054 0.054 emax 0.098 0.098 0.098 imean 17.969 17.970 17.969 imin 17.766 17.766 17.766 imax 18.163 18.163 18.163 excite_mean 0.318 0.318 0.318 fracstop 1.000 1.000 1.000 cjmean 2.895 2.895 2.895 libcent 0 61.2 61.2 61.2 libamp 0 16.3 16.3 16.3 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 176.8 176.8 176.8 kozaiamp 180.0 180.0 180.0