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: 15VB165 # Created Sun Dec 22 02:10:32 2024 # Orbit generated from Bernstein formalism # Fitting 38 observations of 38 # Arc: 2.85y # First observation: 2014/11/17 # Last observation: 2017/09/22 Preliminary a, adot, b, bdot, g, gdot: 0.000240 0.036443 0.000003 0.000567 0.031102 0.000000 # Chi-squared of fit: 7.69 DOF: 70 RMS: 0.08 # Min/Max residuals: -0.19 0.28 # Exact a, adot, b, bdot, g, gdot: 1.911921E-05 3.714361E-02 9.857293E-07 5.809730E-04 3.143328E-02 4.026579E-03 # Covariance matrix: 2.5377E-13 -2.9535E-13 1.8361E-15 -3.3634E-15 -9.7346E-14 -1.9849E-12 -2.9535E-13 4.9989E-13 -3.8949E-15 7.1048E-15 2.0853E-13 4.2006E-12 1.8361E-15 -3.8949E-15 1.5859E-13 -9.4133E-14 -2.5549E-15 -3.9412E-14 -3.3634E-15 7.1048E-15 -9.4133E-14 7.4469E-14 3.1756E-15 6.9676E-14 -9.7346E-14 2.0853E-13 -2.5549E-15 3.1756E-15 2.3755E-13 2.2607E-12 -1.9849E-12 4.2006E-12 -3.9412E-14 6.9676E-14 2.2607E-12 4.1767E-11 # lat0 lon0 xBary yBary zBary JD0 -2.568054 48.796025 -0.098371 -0.043964 -0.983588 2456978.818008 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 25.55530 +/- 0.026 Argument of Peri: 251.17204 +/- 0.045 Long of Asc Node: 119.25349 +/- 0.008 Inclination: 2.64601 +/- 0.000 Eccentricity: 0.20387587 +/- 0.0001 Semi-Major Axis: 39.67609853 +/- 0.0031 Time of Perihelion: 2450490.5697 +/- 6.5 Perihelion: 31.58709962 +/- 0.0057 Aphelion: 47.76509744 +/- 0.0064 Period (y) 249.9204 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 21.50722532 +/- 0.0003 Ecliptic Y 24.71843841 +/- 0.0004 Ecliptic Z -1.42541758 +/- 0.0000 Ecliptic XDOT -0.00220606 +/- 0.0000 Ecliptic YDOT 0.00239152 +/- 0.0000 Ecliptic ZDOT 0.00003494 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 32.79624603 +/- 0.0004 Geocenter to KBO 31.81341068 +/- 0.0005 # Hcoef: 9.31
The following table shows the complete astrometric record for 15VB165. 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 (15VB165) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.31723 03 08 16.601 +14 56 36.52 24.5r 15VB165 568 C~2lVZ 2014 11 17.42609 03 08 15.938 +14 56 34.13 24.4r 15VB165 568 C~2lVZ 2014 11 17.54029 03 08 15.216 +14 56 31.29 24.2r 15VB165 568 C~2lVZ 2014 11 19.33914 03 08 04.372 +14 55 48.80 24.4r 15VB165 568 C~2lVZ 2014 11 23.44182 03 07 39.760 +14 54 13.68 24.5r 15VB165 568 C~2lVZ 2015 09 07.62490 03 22 02.651 +15 55 18.99 24.8w 15VB165 568 C~2lVZ 2015 09 12.48855 03 21 54.441 +15 54 28.43 24.6w 15VB165 568 C~2lVZ 2015 10 07.53269 03 20 32.187 +15 47 51.88 24.7w 15VB165 568 C~2lVZ 2015 10 07.59208 03 20 31.905 +15 47 50.84 24.6w 15VB165 568 C~2lVZ 2015 10 09.57195 03 20 22.892 +15 47 11.32 24.7w 15VB165 568 C~2lVZ 2015 11 06.34408 03 17 50.800 +15 36 47.30 24.1r 15VB165 568 C~2lVZ 2015 11 06.41470 03 17 50.370 +15 36 45.50 24.5r 15VB165 568 C~2lVZ 2015 11 06.48426 03 17 49.953 +15 36 43.93 24.4r 15VB165 568 C~2lVZ 2015 11 07.50182 03 17 43.771 +15 36 19.90 24.5w 15VB165 568 C~2lVZ 2015 11 17.57138 03 16 42.250 +15 32 23.96 24.9w 15VB165 568 C~2lVZ 2015 12 06.36680 03 14 51.613 +15 25 40.93 24.5w 15VB165 568 C~2lVZ 2015 12 06.51621 03 14 50.774 +15 25 37.91 24.4w 15VB165 568 C~2lVZ 2015 12 13.30120 03 14 14.674 +15 23 33.98 24.7w 15VB165 568 C~2lVZ 2015 12 13.35972 03 14 14.358 +15 23 32.92 24.8w 15VB165 568 C~2lVZ 2016 01 01.35451 03 12 51.965 +15 19 15.46 24.8w 15VB165 568 C~2lVZ 2016 01 07.30127 03 12 33.194 +15 18 26.80 24.8w 15VB165 568 C~2lVZ 2016 01 07.30705 03 12 33.177 +15 18 26.72 24.9w 15VB165 568 C~2lVZ 2016 02 04.33458 03 12 00.079 +15 18 33.50 25.3w 15VB165 568 C~2lVZ 2016 02 11.22361 03 12 06.867 +15 19 36.28 24.8w 15VB165 568 C~2lVZ 2016 09 07.58521 03 30 16.961 +16 28 00.79 15VB165 568 C~2lVZ 2016 09 27.51883 03 29 29.384 +16 23 56.48 24.7w 15VB165 568 C~2lVZ 2016 09 29.49637 03 29 22.368 +16 23 24.84 24.6w 15VB165 568 C~2lVZ 2016 10 05.49953 03 28 58.750 +16 21 41.88 24.9w 15VB165 568 C~2lVZ 2016 10 07.50403 03 28 50.168 +16 21 05.39 24.3w 15VB165 568 C~2lVZ 2016 10 07.59973 03 28 49.710 +16 21 03.53 25.0w 15VB165 568 C~2lVZ 2016 10 09.50422 03 28 41.227 +16 20 27.67 24.4w 15VB165 568 C~2lVZ 2016 10 09.57681 03 28 40.887 +16 20 26.45 24.6w 15VB165 568 C~2lVZ 2016 11 04.46126 03 26 21.477 +16 11 17.47 24.6w 15VB165 568 C~2lVZ 2016 12 28.44224 03 21 22.068 +15 54 18.09 24.8w 15VB165 568 C~2lVZ 2016 12 28.45409 03 21 22.020 +15 54 17.82 24.9w 15VB165 568 C~2lVZ 2017 01 27.30860 03 20 10.937 +15 52 03.61 24.3w 15VB165 568 C~2lVZ 2017 09 15.62132 03 38 18.204 +16 58 07.31 25.1w 15VB165 568 C~2lVZ 2017 09 22.59895 03 38 01.927 +16 56 46.89 25.1w 15VB165 568 C~2lVZ
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 -0.09 0.00 -0.14
2 0.0003 -9.90 0.09 0.31 0.01
3 0.0006 -20.74 -0.19 0.41 -0.02
4 0.0055 -183.54 0.13 2.16 -0.02
5 0.0168 -552.70 0.04 7.52 0.10
6 0.8058 12464.92 0.02 249.98 0.02
7 0.8191 12337.04 -0.03 231.37 0.10
8 0.8877 11084.10 0.06 152.67 -0.07
9 0.8878 11079.88 -0.04 152.71 0.10
10 0.8932 10943.61 0.02 148.03 0.05
11 0.9693 8655.49 -0.07 114.42 0.11
12 0.9695 8649.01 -0.05 114.30 -0.04
13 0.9697 8642.77 0.13 114.36 -0.01
14 0.9724 8550.13 -0.11 114.44 0.07
15 1.0000 7629.00 -0.13 118.98 -0.06
16 1.0515 5978.18 -0.04 150.62 -0.01
17 1.0519 5965.67 -0.06 150.91 -0.12
18 1.0705 5429.04 0.10 169.36 -0.03
19 1.0706 5424.35 -0.06 169.55 -0.04
20 1.1226 4206.32 -0.02 237.63 0.02
21 1.1389 3931.50 0.06 263.06 0.07
22 1.1389 3931.24 0.05 263.05 0.03
23 1.2157 3471.41 0.10 397.37 0.02
24 1.2345 3582.84 0.11 431.65 -0.01
25 1.8077 19896.00 0.04 362.85 0.00
26 1.8623 19165.90 -0.01 294.49 -0.06
27 1.8677 19059.35 0.05 288.75 -0.10
28 1.8841 18701.57 -0.09 273.00 0.00
29 1.8896 18571.81 0.28 268.22 0.01
30 1.8899 18564.90 -0.14 268.05 0.03
31 1.8951 18436.70 0.01 263.55 -0.15
32 1.8953 18431.62 0.03 263.59 0.02
33 1.9662 16335.87 0.03 232.36 0.03
34 2.1140 11881.42 -0.08 341.21 0.11
35 2.1140 11880.68 -0.11 341.13 -0.02
36 2.1957 10852.03 -0.01 475.37 -0.08
37 2.8290 27134.69 -0.04 449.66 -0.01
38 2.8481 26884.53 0.02 426.52 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.
15VB165 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 40.042 40.053 40.031 ecceobj 0.212 0.212 0.212 incobj 2.647 2.647 2.647 qmin 31.067 31.073 31.049 qmax 48.624 48.580 48.602 amean 39.457 39.457 39.457 amin 38.909 38.920 38.914 amax 40.047 40.054 40.060 emean 0.197 0.196 0.197 emin 0.180 0.179 0.179 emax 0.214 0.215 0.214 imean 1.659 1.683 1.591 imin 0.828 0.806 0.836 imax 2.305 2.388 2.210 excite_mean 0.199 0.199 0.199 fracstop 1.000 1.000 1.000 cjmean 3.006 3.006 3.007 libcent 0 179.5 179.4 179.5 libamp 0 124.3 125.2 123.9 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 195.4 196.5 196.1 kozaiamp 180.0 180.0 180.0